Why is the Tungsten ring popular in your life_2
Fruit juice concentrates are nutritionally rich and economic counterpart of raw fruit. But it is always advisable to consume strike a balance between the two and consume both the fruit and juice from concentrate simultaneously.
Fruit Juice Concentrate is a processed product, where the natural water portion is removed and the result is a 3 to 5 times more thick and concentrated fluid. This particular concentrate reduces in volume and preserve the original fruit flavour and colour.
Fruit juice concentrate is the simple way of eradicating excess water content from the fruit, thereby freezing and concentrating it. There are certain fruits available around us, which needs to be preserved by concentrating it. Their aroma, flavour, nutritional value and colour are retained with 100% originality WCMT Insert in this concentrated form. Many food processing companies have liquor manufacturing plant, run and operated by trained experts who specialise in yielding high quality fruit juice concentrate.
Fruit juice concentrate is usually made to retain the authenticity of the fruits, when they are exported to other countries, far from the growing regions. Juice manufacturing plant play a vital role here by converting the liquor to a thick concentrated fluid, reducing the volume by almost 5 to 7 times and making the transportation easy and hassle-free. Such concentrates also reduce the storage cost manifold.
Fruit juice concentrate, made by an elementary pasteurisation process, makes the fluid germ free and ensures its availability, round the year. Though juice made from concentrate lacks the fibre content but retains its Cemented Carbide Inserts vitamins and mineral proportions to a satisfactory level. However, juice concentrate is the simplest and easiest way to consume juice in diurnal life. Though there is no comparison with whole fruit and the same is way better in terms of nutrition, wholesome food and fibre richness as opposed to juice concentrate or juice, but still having liquor from concentrate is popular among those who wish to have fruit juice every day and consuming whole fruits in daily basis seem to be an expensive affair for many.
Speaking about the difference between concentrated and unconcentrated liquor, the way of manufacturing and processing the final product is quite different. Concentrated juices are made by removing the water portion by machineries at juice manufacturing plant , under a regulated thermal and pressure environment. Before final packaging and sales, water is added to this, followed by pasteurisation method. Unconcentrated juices are processed by juicing or extracting from the fruit, followed by pasteurisation.
There are some fruits like oranges, whose fresh fruit form and concentrate have similar nutritional profiles. In case of orange, both the fresh fruit and the concentrate have identical calories and sugar content. Therefore, both offer similar energy levels and glucose to the body and brain. In case of vitamins, raw fruits rank tad bit high than liquor concentrates who lose some of the vitamin concentrates during processing. On the contrary, there are certain fruits like orange concentrates often contain more nutrient content as opposed to the fruit due to nutrient fortification process during processing. Fruit juice concentrates are also rich in Vitamin A, potassium and magnesium thereby maintaining body and brain health to the satisfactory level.
The Cemented Carbide Blog: lathe inserts
Hid Headlights The Brighter Lights
Lifting heavy loads can be done in a variety of ways. Electric wire hoists are one such material handling equipment. Heavy loading goods are moved with the support of a rope wrapped around a drum. Electric wire rope hoists are commonly used in industries that involve carrying heavy loads up and down. It can lift anything from 500 kilograms to 20 tons.
If you're looking to buy a hoist, make sure you communicate your needs to electric wire rope hoist manufacturers or the crane puller suppliers so you get the right product. Keep in mind that operating a hoist necessitates specialized knowledge, and is a difficult and time-consuming job.
The rope life would be reduced dramatically if the rope was chosen, installed, operated, or maintained incorrectly. Any wire hoist used in a hoisting application will fail miserably, even under good conditions and use. As a result, regular inspections by an experienced and competent inspector are needed to determine the strength of the wire so that it tungsten carbide inserts can be replaced before it breaks.
When it comes to wire rope wear and loss, there are several factors to consider. The following are some of the possible causes:
Tension Failure Caused by Shock Loading or Overload
Overloading of the wire rope causes failure of tension. Overloading can be conducted depending on the original strength of a new wire rope or the stress distribution of an older wire rope. When a wire breaks due to undue friction, one end of the broken wire would be coned and the other cupped. This form of the split is characterized by the broken ends being necked down by the beam clamp manufacturers. Shock loading a slack rope, which causes undue impact stress on the rope, is a common cause of tension breaks.
Abrasion Breaks Caused by Externally MadeDamage
Abrasion wire breaks bar peeling inserts in electric hoist wire occur when the rope has been weakened by excessive contact with hoist sheaves and drums, or when the rope has collided with an external item such as a shelving or crane girder. That is why where you are looking for double girder overhead cranes suppliers or single girder overhead cranes suppliers, it is important to hire a reliable one. This type of damage is often caused by poorly grooved sheaves and drums, as well as an incorrect fleet angle into the sheaves. Abrasion-induced wire breaks reveal broken wire ends that are worn to knife-edge slenderness.
Core Slippage or Protrusion From Improper Installation
To avoid rope damage during assembly, rotation-resistant wire ropes on hoists must be mounted with special care and proper handling. During the different stages of installation, the lay width of a rotation-resistant rope must not be interrupted. Core slippage can occur when the rope is twisted or torqued, causing the outer lines to shorten in length and the core to slip and protrude from the rope. Since the core is no longer has to take its designed share of the load, the outer strands become overloaded. Slippage can also arise when torque is withdrawn from a rotation-resistant rope base. The outer strands lengthen, while the inner layers or core get overloaded, thus lowering the service life and leading to the failed rope.
Corrosion Breaks Because of Poor Lubrication
Corrosion-prone wire are typically the result of insufficient lubrication. The rusty surface on individual wires is an easy way to identify corrosion. Tension, abrasion, and fatigue are not normally visible in broken wires. Corrosion is among the most serious causes of rope degradation because the extent of the problem to the core of the rope is hard to determine.
Cut or Shear Produced by Externally Induced Damage
The wire will be pressed down and cut at broken ends or show signs of a deformation cut in this type of wire rope damage. This condition indicates an external mechanical malfunction, as well as wear or damage to equipment parts such as sharp drum grooves or broken sheave flange.
The Cemented Carbide Blog: special Inserts
Are Black Tungsten Wedding Bands Ideal For Everyone
With the progress in time, the importance of using recycled materials has accelerated appreciably across the globe. Several companies have contributed to the cause and the governments of many nations have started green initiatives to keep a check on the environment. Recycled HIPS pellets are one of the smaller things that industries have been recycling to reduce carbon emissions and production costs.
Benefits of using recycled materials
With many companies adopting such techniques, GRM polymers is also showing commendable progress in the field of eco-friendly manufacturing. Due to a growing market for commodities made from recycled materials, companies have begun providing efficient service and products to customers. The use of recycled HIPS pellets makes way for assorted advantages, not just to customers but to multi-national corporations as well. As a major benefit, it does not hinder the environment and improves the quality of polymers. It also enables skilled craftsmen the world over to customize the products according to the specifications of the consumer.
Embraced by nations the world over
With time, there has been a settle increase in the claims made by nations that they can recycle almost everything produced within their borders. Countries such as the People's Republic of China, Philippines, and Malaysia have facilities where they assemble the products and deliver them to respective markets. The importance of recycled products is globally evident, and this phenomenon is finding many takers among the people who earlier oppose the idea. This has given rise to the development of polymer-based products, created by using recycled HIPS pellets and several other materials.
GRM Polymer - Committed to green environment
Green Recycled and Modified Polymer Co. Ltd. (GRM) helps inventors, start-ups, and OEMs by manufacturing customized components and assemblies. Its plants at Japan, China, Philippines, Carbide Drilling Inserts and Malaysia make the process of development and manufacturing more efficient. This particular organization specializes in the design and manufacturing of reliable, high-quality polymer components for construction. Post-industry recycling and modified materials for industries - including but not limited to - electronics, automobiles, cleaning agents, etc. are the premier focus of the corporation.
The company specializes in supplying and manufacturing of recycled HIPS pellets, or High Impact Polystyrene pellets for those unfamiliar with the term. It is a primary ingredient in the production of injections, electronic parts, outer layers of molding and many other products. High Impact Polystyrene pellets are necessary in creating products that require high levels of impact, flexibility and strength.
Multifarious CCGT Insert applications
Using eco-friendly products has become extremely essential in today's world and companies are rushing to serve this new demand. This is profitable for corporations as it improves the quality of customizable polymers used during the production. GRM Polymer is contributing its bit to ensure ecological balance by manufacturing recycled HIPS Pellets.
These products are suitable for packaging and find their use in durable applications that need toughness. Some of the common applications include food containers, bottles, foam packaging, bottles and bottle caps, foodservice packaging, protective packaging and so on. It is high time to switch over to these recycled HIPS Pellets and add up to the greener environment.
The Cemented Carbide Blog: drilling Inserts suppliers
Characteristics and applications of carbide tools coatings
Titanium carbide (TiC) is an extremely hard refractory material with high melting temperature, and high thermal shock and abrasion resistance. It is used mainly for powder metallurgical parts including cutting tungsten carbide inserts tool tips, dies, wear parts and resistant coating. In industry, the manufacturing of Cu-W composites is usually done through infiltration of Cu into a porous, pre-sintered tungsten compact, or through the liquid phase sintering of compacts pressed from mixed powder.
In some researches, Cu-W/TiC was investigated and fabricated through liquid phase sintering. In is reported that the additive metals (iron, cobalt and nickel) can enhance densification in the liquid phase sintering of Cu-W. In order to increase the densification of the Cu-W matrix, nickel (Ni) was introduced. In addition, the densification of Cu-W/TiC sintered electrodes can be improved by the addition of Ni. However, due to the insolubility of Cu, W and Tic, and the amount of Cu apparently reduced by the cold welding in ball milling, porosity cannot be avoided.Cermet Inserts Nevertheless, with increasing TiC, the distribution of the particle size becomes narrow.
More information about effect of TiC in copper-tungsten electrodes click here:
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The Cemented Carbide Blog: THREADING INSERTS
Drink Up Tooling Expertise at the Knowledge Bar
CNC Engineering Inc. will now play a key role in the distribution, integration and support of the Meltio metal 3D additive manufacturing (AM) solutions for bar peeling inserts FANUC CNC and robotic systems in the U.S. market.
According to CNC Engineering Inc., it specializes in the integration and support of FANUC CNC machine tool retrofits, Renishaw probe and laser systems, rotary tables and additional axes, FANUC Robots and now Meltio solutions.
Meltio is said to take metal AM to the next level by developing high-performance, affordable and easy-to-use metal AM solutions using wire laser metal deposition (LMD) technology, which the company says is the safest, cleanest and most affordable metal feedstock in the market.
CNC Engineering and Meltio say they have collaborated to design a solution that combines the power and reliability of FANUC CNC with cutting edge AM technology. This hybrid additive and subtractive manufacturing solution is said to have several advantages, including offering TNGG Insert one of the most affordable hybrid manufacturing solutions. It is also said to provide production savings as it offers nearly 100% material utilization. It can also generate complex geometries in a single process and combine different materials into a single part. Users can also utilize AM in their shops by taking advantage of existing machines, thereby saving floor space.
The Cemented Carbide Blog: Carbide Inserts
Covers Protect Tooling, Provide Safety For Operators
What is a machine tool show in Moscow like? What is Moscow like thesedays? MASHEX, the Industrial & Technologies For Russia show, hasbeen held every year since 1988. This year, the show moved to theCrocus Center Expo site about 15 miles from the Red Square, which isliterally and figuratively the heart of Moscow. (Red Square, by theway, is still properly called such because that color was consideredsynonymous with beauty when the Kremlin and its cathedrals and palaceswere built centuries ago. Their beauty remains, although politicalrevolutions have come and gone.)
The Crocus Center is a modern complex with several large exhibithalls that rival any trade show venue in Europe or North America. Thebuildings are spacious, clean, functional and tastefully decorated.MASHEX ran for four days (May 29-June 1) during a rare heat wave thatdrove outside temperatures into the 90s, although the exhibit hallswere comfortably air-conditioned. The show can be summed up in thestatistics reported by show sponsors: 50,000 square meters of exhibitspace; 500 exhibitors; 15,000 attendees. These numbers, however, do notreveal the nature or significance of the show.
It isRussia’s main machine tool show, the place where machine tool sellersand buyers from all over the country convene. What the exhibitorsshowed and what interested Russians tell much about the metalworkingindustry there. In general, exhibitors brought their latest and mostadvanced equipment. To offer anything less, apparently, would be tounderestimate the Russian metalworking market. Buyers are as interestedin all of the leading technologies and advanced processes as buyersanywhere around world.
On display were five-axis VMCs;multitasking machine tools; lathes for hard turning; wire and ramelectrical discharge units; robotic welders; carbide inserts with thenewest coatings and geometries; and other recently developed technology.
Althoughparts of Russia’s economy and social infrastructure are still incatch-up mode, the country is experiencing booms in many industrialsectors. The energy industry is expanding rapidly; a growing middleclass is hungry for consumer goods; and the construction industry is atfull tilt—tall cranes salute the future on every horizon in the Moscowvicinity, it seems.
To keep up, Russian manufacturers generally want machines capable ofhandling complex work to close tolerances. They seem to be lessinterested in automation such as gantry loaders, robotic part transferor flexible machining systems, although pallet changers that keepmachine downtime low are popular. Salaries and benefits are relativelylow in Russia, so there is no great pressure to reduce head count infactories.
Withthe largest market share in Russia, European machine tool builders arethe best represented at the show. DMG, Danobat and Index were there, aswell as numerous smaller companies serving the industry. SandvikCoromant, Walter AG and Iscar were among the cutting tool exhibitors.Delcam and Siemens were among the software and CNC suppliers. Buildersfrom Japan were not far behind. Yamazaki Mazak, Mori Seiki, Okuma,Makino and a number of other companies had a strong presence. Don’tbother consulting the show directory for a complete listing of SNMG Insert “Who’sWhere With What.” Not every dealer or distributor lists all of thelines they carry.
A number of U.S. companies were conspicuous. Haas Automation, Hurco,Hardinge, Gleason, and MAG Industrial (representing Fadal, CincinnatiMachine, Giddings & Lewis, and other brands now in that family)were present, to name a few.
Machine tool building in Russia is not what it used to be, a factapparent at this show. The Soviet government once supported a thrivinggroup of builders, but many of them had factories in other Soviet-bloccountries. When the USSR disintegrated in the early 1990s, these“machine tool enterprises” lost access to these manufacturingfacilities. They also lost captive markets in the trading bloc and lostheavily subsidized production orders from the Soviet government, atriple whammy. Yet several of these companies Carbide Drilling Inserts have managed to regroupand re-establish themselves as key players in the Russian andinternational markets. These companies had large booths at MASHEX.
Two other Russian machine tool builders, Savelovo Machine-BuildingPlant and Ivanovo Heavy Machine Tool Building Works, deserve mention.Each has pursued different strategies in the years since the Sovietbreak-up while coping with a competitive marketplace without governmentsupport. Savelovo diversified. Although 50 percent of its output isstill metalcutting machine tools, the company also produces packagingequipment, product test stands and other machines for manufacturing.Most of its machine tools are designed and built to customerspecification for special applications in the aviation industry.
Ivanovo,meanwhile, concentrated on large HMCs and machines for hard turning.This builder now focuses on machines for the automotive, energy anddefense industries. The machines at the show presented an impressiveappearance. The sheet metal guarding, for example, is attractivelydesigned and well made. One large HMC on display featured HSK-63tooling, a large pallet changer and a Siemens Sinumerik CNC control.
Thereis no compelling reason for U.S. machine tool buyers to attend MASHEX,although they would feel quite at home in the exhibit halls. However,U.S. machine tool builders and suppliers need to take a hard look atthis show and at the Russian market. Even visiting the show just totalk to distributors and exhibitors would provide a good “feel” for themarket. The window of opportunity is not large. In a few years, gettinga foothold in Russia will be more difficult. Domestic builders arelikely to recapture more of their former vigor and boldness. Foreigncompanies with a head start will be in a good position to leveragetheir familiarity with the market and their mastery of its challengesand risks.
For information about MASHEX 2008, visit www.mashex.ru.
“Russianbuyers prefer to purchase Russian machine tools because they feelcomfortable with the availability of parts and service. The interestingpoint is that they will pay a premium for Russian machines for thisreason. Next in line are European machines due to familiarity withquality and electronics. But Russian buyers have a high level ofrespect for American-made machines.
“I noticed asharp increase in Asian machines at this year’s MASHEX. Typicaldelivery of Russian made machines is six or more months. The majorAsian machine tool builders are willing to put in an inventory ofavailable machines and also to establish a service network. As a resultI expect them to do well in the Russian market.”
The Cemented Carbide Blog: Carbide Inserts
Combination Machines Changing The Toolroom
Not all CAM systems are created equal. One differentiating factor is the efficiency of the toolpath strategies incorporated in the program. If these strategies are limited, operations on the machine might run at less than optimal speed.
That was the case at Delta Pattern, a South Gate, California-based manufacturer of stamping dies, foundry patterns and other tooling, primarily for the aerospace industry. To improve efficiency, the company switched to a CAM package that optimizes roughing tool paths based on the results of previous machining cycles. According to the company, this and other features of DP Technology’s Esprit software have reduced cycle time on typical parts by 25 percent and programming time by 33 percent. As a result, profits have increased by approximately 30 percent.
Stamping dies produced at Delta Pattern are used to create parts such as aircraft doors and housings from aluminum, titanium and other materials. Sizes typically range from 10 by 20 inches to 3 by 4 feet, and most incorporate complex 3D surfaces. Depending on its complexity, machining time for a typical stamping die could range from 4 hours to 3 days. Typically, the company receives either an IGES file or a series of 2D drawings in the form of Mylar prints to define part geometry. Most dies and patterns are produced on a Johnford 2100H or a Haas VF4 machining center.
The company’s previous software worked well on parts composed primarily of 2D and 2.5D features, but it was less efficient for those involving the complex curves common at Delta Pattern. CNC programmer Abel Germán Olivieri says he was introduced to Esprit Mold at developer DP Technology’s 2006 World Conference, an annual user event. There, he learned that the CAM software package is designed specifically for companies like Delta that produce molds, dies, patterns, prototypes and other parts with complex 3D surfaces. "The key advantage of the software is that it offers machining strategies that minimize the amount of time needed to remove the large amounts of material required in this type of machining," he says.
Delta programmers begin by loading part geometry into the software. Next, they define the speeds, feeds, diameters, lengths, holder types and other such information for the desired set of roughing tools. The software automatically generates roughing tool paths based on this data. Programmers can choose to generate tool paths from outside-in or from inside-out, and a range of approach and retract positions are available.
Roughing proceeds by removing material from the workpiece in successive layers. The first paths use a relatively large cutter to remove as much material as possible. Then, to bring the workpiece closer to final geometry, progressively smaller tools machine areas of the model that were inaccessible to the initial cutter. For example, Mr. Olivieri says a typical milling operation might begin with a 2-inch-diameter bullnose end mill before moving successively to 3/4-inch, 1/2-inch and 1/4-inch square end mills.
To maximize material removal, Esprit determines how much stock each cutter can safely machine without gouging the part. Maintaining the same cutting depth to remove a uniform amount of material across each layer of the workpiece keeps tool loads constant and ensures efficient high speed slot milling cutters cutting, the developer says. Additionally, the software continually monitors the in-process stock model via stock automation capability to track the location of remaining material at all times, even when machining undercut areas.
Mr. Olivieri says a key advantage of Esprit is that it automatically adjusts these roughing tool paths based on the results of previous machining cycles. In addition to reducing cycle time, this helps avoid air cutting while minimizing advance and retract movements. Other toolpath optimization capabilities include rounding sharp angles, smoothing stepovers and using trochoidal feed to enable climb milling in virtually any situation and to keep feed rates and chip loads constant.
The software’s high speed, Z-level finishing cycles, for which the shop typically employs ballnose end mills, bar peeling inserts are also characterized by smooth stepovers and the rounding of sharp edges for high speed cutting. Other features of these cycles include smooth, circular approach movements and the use of passes that vary in height to create a constant scallop height, contributing to quality surface finishes. The software also offers a Z-level zigzag strategy to improve cycle time and surface quality when machining vertical walls. In addition to rounding internal sharp edges for high speed cutting, this finishing cycle incorporates circular interpolation whenever possible to improve efficiency.
Delta programmers also benefit from Esprit’s feature-based capabilities, which enable them access the full functionality of solid models. The software automatically identifies part features and determines a logical order for machining operations. Programmers maintain the flexibility to change that order by simply dragging and dropping a feature to a different position on the sequence. This is especially useful if, for example, the software’s simulation capability reveals problems or opportunities for improvement. In that case, programmers can easily change or reorder operations to prevent crashes or reduce cycle time.
Also, programmers can create a knowledge base of optimized machining operations, each of which includes particular tools, speeds, feeds, cutting depths and other such parameters. The software automatically applies these operations when it encounters similar workpiece features. In addition to saving programming and cycle time for parts incorporating similar geometry, this ensures that the program takes full advantage of the shop’s machines, cutting tools and other equipment.
Support provided by DP Technology has been critical to the company’s ability to use the software successfully, Mr. Olivieri says. At first, the developer worked closely with Delta to identify its programming needs and provided on-site training. The two companies continue to communicate frequently via phone and e-mail, and Mr. Olivieri notes that technical support staff is responsive and willing to take the time to help the shop work through any problems. The developer also provided postprocessors for Delta’s machines, eliminating the need to edit G code.
"A typical stamping die that might have taken 12 hours to program in the past can now be programmed in only 8 hours," Mr. Olivieri concludes, noting that optimized re-machining and other software features have significantly reduced machining time as well. "These time savings provide substantial cost savings—they have helped to improve our profitability by 30 percent."
The Cemented Carbide Blog: Cemented Carbide Inserts
7 Tips for Programming Ceramic Cutting Tools
Why will there be such an increase in demand for machining titanium in the coming years?
Because aircraft of the near future will use dramatically more of this metal.
Indeed, Steve Lovendahl of Boeing points out that the company’s 787 aircraft has more titanium content than all previous Boeing aircraft models put together. Meanwhile, the competitor to this aircraft is just as full of titanium, while new military aircraft have significantly more titanium, too. When all of these airplanes enter full production, the demand for titanium parts will far outstrip the amount of titanium machining capacity that exists in the aerospace supply chain right now.
For machining suppliers, titanium therefore presents a clear opportunity.
Yet Mr. Lovendahl says many of these suppliers will need to reexamine their methods and resources before they can fully take advantage of the opportunity. That reexamination may point to the need for a new machine tool, he says. Shops should recognize this. However, it is not necessarily the case that this will be an expensive machine.
Titanium Is Different
Mr. Lovendahl is a production specialist at Boeing’s expansive machining facility in Portland, Oregon. He and other Boeing engineers here focus on challenges related to machining complex structures from hard metals, often so that the solutions to these challenges can be shared with company suppliers. He says that his own organization also often wrestles with the question of what type or level of machining center is the right choice for a given titanium part.
In the case of a forward engine mount for the 787, for example, the Portland personnel were initially focused on finding the stiffest machining center available. This titanium workpiece seemed to demand heavy milling, so much so that they expected the machine’s stiffness to determine how efficiently this work could be done. However, an analysis of the best operations for this part—including some novel cutting strategies—revealed that while the torque requirement was certainly high, the highest torque that would be required still fell within the performance envelope of a standard machine that was similar to ones Boeing already had in production.
Then came the aft engine mount. This part did require an extremely stiff machine. Here, the analysis of machining operations revealed the need for a top cutting torque beyond what any of the candidate machine tools could provide. Machine tool builder Mitsui Seiki responded by modifying the design of its already heavy-duty HS6A machining center to meet the torque demand.
Mr. Lovendahl says performing this analysis of the needed machine capabilities is key. It’s also fairly easy. Machining operations are rated one by one, using formulas accessible to any machinist. Where higher-value titanium parts are concerned, he says, this sort of analysis is likely to point out the need for a new machine tool simply because shops in the aerospace supply chain often don’t have the type of equipment that favors titanium machining. Instead, they tend to have equipment that is tailored to cutting aluminum.
Titanium is different, he says.
That might seem like an obvious point, but it’s also a vital one. For a large aluminum part, the most important machine tool parameters (in addition to the travels of the machine) are likely to be the spindle speed and horsepower. By contrast, for a titanium part, the most important parameters become spindle torque and coolant delivery—along with thrust force for drilling operations. Titanium responds to machine tool parameters the shop might not have considered before.
“Nobody wants to be the one to go to the boss and say the shop needs Carbide Inserts a new piece of equipment,” Mr. Lovendahl says. Still, he thinks what many shops wish to do instead—that is, producing titanium parts through suboptimal processes on machines that already happen to be in-house—would ultimately be the more costly way to try to serve the industry’s changing needs.
Tools First
The analysis aimed at finding the most appropriate type of machine tool actually begins with the cutting tools, Mr. Lovendahl says.
Shops tend to start with the machine instead, “tooling up” the machine for that job. For a titanium aircraft component, however (or for any other large and challenging high-value part), the more productive approach is to first identify the tools and strategies that are most appropriate to roughing, finishing and drilling that part—then see what kind of machine is suggested by the cutting parameters that result gun drilling inserts from those choices.
The shop shouldn’t have to do this alone, he says. Boeing works with suppliers on process development. The cutting tool companies themselves are also valuable resources. The more knowledgeable cutting tool suppliers can specify high-metal-removal-rate tooling appropriate to various features of the part, along with the right methods and parameters for using those tools effectively.
The analysis is straightforward from there. Starting with the ideal depths of cuts and feed rates for the various operations and tools, along with material coefficients and a few other inputs, the shop calculates the required horsepower and torque for each primary machining operation, along with the thrust force of each drilling move. The result of these calculations might be nothing more complicated than a spreadsheet on a single page.
But having this table of data provides at least two valuable benefits, Mr. Lovendahl says. One is that it simplifies the search for the right machine—either a new model or one that is already in the shop. The numbers show clearly what performance the machine will have to deliver to be suitable for the job.
Another benefit is that the analysis might reveal a single step where the intended list of tools and operations ought to give way. It may be, for example, that just one line on the spreadsheet shows a torque requirement far above the rest of the process. Reworking that step, while performing the other 90 percent of the metal removal as efficiently as possible, might enable the shop to apply this streamlined process on some far more accessible machine.
A third benefit comes when no immediately accessible machine tool is appropriate, as was the case with Boeing’s aft engine mount. Beyond a certain threshold, it is not just the torque performance of the spindle that matters, but also the system stiffness of the machine as a whole. A rigid structure has to support the high-torque spindle. Scott Walker, president of Mitsui Seiki USA, says addressing Boeing’s requirements in this application involved a level of attention to low-frequency dynamic stiffness beyond what he thinks the design of any other machine tool has received. The company refined the machining center’s design to damp vibration modes that had previously been insignificant, even in aggressive cuts. The customization was possible specifically because Boeing’s analysis of the operations it intended to perform made the performance needs clear. Now, the HS6A machines resulting from this work are able to achieve the 16-cubic-inch-per-minute metal removal rate in titanium 6342 that Boeing’s chosen cutting tools and strategies for the aft part make possible. The Portland facility now has five of these machines—two dedicated to roughing the aft mounts and three dedicated to finishing them.
Close Enough
Mr. Lovendahl says one of the main misapprehensions that prevents shops from developing their machining processes in the way he describes—specifying machining operations first, then choosing the machine—is the belief that a process cannot be mapped out precisely in advance. Tool wear, to cite just one variable, will affect how much torque is really needed for a given cut.
Yet this level of accuracy is not required. While choosing the right machine tool is indeed vital, the choice is not so exacting.
Rather than choosing precisely the right “fit” in a machine tool, the shop will more likely find itself choosing among general classes of machine in terms of capabilities and performance. Any of these “classes” is the right choice in the right environment, and all of them can at least sometimes deliver high-value parts. Accordingly, choosing among even these general levels can be difficult—with costly repercussions for the shop if it chooses either too low or unnecessarily high.
In short, the analysis of required machine performance is necessary simply to find the machine that is in the right ballpark. Without data, he says, accomplishing just this much is not easy to do. But if the shop is ready to take its game to the next level, then finding the right ballpark is a logical and crucial step.
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The Cemented Carbide Blog: Cemented Carbide Inserts
Beyond Evolution GUP V insert
Addressing issues like vibration and chatter when using carbide inserts is crucial for achieving high-quality machining results and prolonging tool life. Here are some strategies to mitigate these problems:Optimize Cutting Parameters:Adjust the cutting speed, feed rate, and depth of cut to find the optimal balance that minimizes chatter. Experimenting with different settings can help identify the most stable cutting conditions for your specific application.Select the Right Carbide Grade and Insert Geometry:Choose a carbide insert with the appropriate grade and geometry for your machining operation. Inserts with better vibration damping properties can help reduce chatter.Use Rigidity and Stiffness:Ensure that the machine tool, workpiece setup, and tool holder are rigid and properly secured. Stiff setups help dampen vibrations.Tool Overhang:Minimize tool overhang or protrusion from the tool holder, as excessive overhang can lead to increased tool deflection and vibration.Dampening Techniques:Consider using vibration-damping tool holders or anti-vibration boring bars designed to reduce chatter.Balancing:Make sure the cutting tool and tool holder are properly balanced. Imbalances can lead to vibrations. Regularly inspect and Shallow Hole Indexable Insert balance tools when necessary.Workpiece and Tool Material Compatibility:Ensure that the workpiece material is compatible with the cutting tool material. Mismatched materials can lead to poor tool life and vibration issues.Coolant and Lubrication:Use the appropriate coolant and lubrication to reduce friction and heat, which can contribute to chatter. Proper lubrication can improve chip evacuation and reduce heat generation.Tool Inspection and Maintenance:Regularly inspect carbide inserts for signs of wear, damage, or chipping. Replace inserts as needed to maintain optimal performance.Toolholder and Machine Maintenance:Keep the machine tool and toolholder in good condition by performing regular maintenance to ensure accuracy and rigidity.By implementing these strategies and continuously monitoring and adjusting your machining processes, Cemented Carbide Inserts you can effectively address vibration and chatter problems when using carbide inserts, improving both productivity and tool life.Related search keywords:carbide inserts, carbide turning inserts, carbide inserts for metal lathe, carbide inserts for wood turning tools, carbide inserts for aluminum, carbide inserts apkt, carbide inserts for a lathe, tungsten carbide inserts, carbide milling inserts, cnc tools
The Cemented Carbide Blog: Drilling Inserts
CAM, Simulation Software Enhances Port Machining Toolpaths
The choice of carbide grade has a significant impact on the performance and tool life of a turning insert. Carbide inserts are widely used in metal cutting operations, and different grades are engineered to perform optimally under specific conditions. Here's how the choice of carbide grade affects performance and tool life:Hardness and Wear Resistance: Carbide grades with higher hardness and wear resistance are better suited for machining hard materials like stainless steel, cast iron, and superalloys. A harder carbide grade can withstand the abrasive forces generated during machining, leading to longer tool life and reduced wear.Cutting Speeds and Feeds: Different carbide grades have varying capabilities when it comes to handling high cutting speeds and feeds. Grades with excellent heat resistance and thermal conductivity can withstand higher speeds without suffering from excessive heat buildup, which can lead to tool wear or failure.Toughness and Shock Resistance: For interrupted cuts or machining operations that involve sudden changes in load, carbide inserts with high toughness and shock resistance are essential. Tough grades can endure the stresses caused by interrupted cuts or variations in workpiece materials, reducing the likelihood of chipping or fracturing.Coating Compatibility: Many carbide inserts are coated with various types of coatings to enhance performance. The choice of carbide grade should be compatible with the coating being applied. The coating can provide additional benefits such as improved wear resistance, reduced friction, and increased heat resistance.Workpiece Material: Different carbide grades are optimized for specific workpiece materials. Choosing the right grade for the material being machined ensures efficient chip evacuation, reduced cutting Machining Carbide Inserts forces, and minimal built-up edge, ultimately enhancing both performance and tool life.Application Conditions: The cutting environment, including factors like coolant availability and stability, also influences the choice of carbide grade. Some grades are more suitable for dry machining, while others perform better with coolant. The right choice can extend tool life by preventing excessive tool wear or heat-related issues.The choice of carbide grade is a crucial factor in determining the performance and tool life of a turning insert. It should be based on factors such as the workpiece material, cutting conditions, and machining environment.Welcome to contact us for more details.Related search keywords:turning insert,turning inserts, carbide turning inserts, carbide inserts, turning insert grade, turning insert grade chart, Shallow Hole Indexable Insert turning insert coatings, pcd turning insert, round turning insert, turning inserts for aluminum, thread turning insert, cbn turning inserts, cnc turning inserts, positive rake turning inserts, carbide inserts turning tool
The Cemented Carbide Blog: lathe machine cutting tools
