Improve performance of machine tool cutting tool

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  • source:NEWRGY CNC Machining
In the light of specific application the circumstance is machined " appropriate " edge is not easy thing. Advanced before long, people still thinks to make edge chamfer body all the time is not science, is a kind of art more, because cutting cutting tool is in,wearability and hardness quality respect ask very tall, the groovy look that because this is machined,gives satisfaction is very difficult. But, machine proper cutting blade to have very big effect to cutting tool function and life. Correct cutting blade machines a process to be able to reduce common invalidation cause, such as: Break off crack, the invalidation that hot induction causes and cut bits tumour to wait and prolong cutting tool life, and can the very big dependability that raises cutting tool. The cutting tool of proper honing still can raise those who machine working procedure to repeat precision, conduce to implementation unmanned guard treatment. Edge honing is the abrasion process that has on microcosmic dimensions, control of process of whole set of need have the aid of will carry close together noncombatant duty. But, metallic purify rate and edge consistency are controlled very hard on material of cutting cutting tool. Normally, honing process is guide through guessing well-trainedly bring, and the skill of the change of machine tool of be enslaved to be enslaved to and operator. Common honing process machines the corner of cutting tool easily too much, and because of supplied materials each are not identical, be in very hard a knife undertakes controlling on foundation of a knife. Not only edge honing is controlled very hard, because cutting condition also follows individual cutting,at the same time blade happening changes, because this machines cutting,the optimal dimension of blade can follow treatment workpiece change and along cutting blade happening changes. Close hold bring project of machinery of university of science and technology - the engineering is mechanical the associate professor of the department, it is to be located in at the same time close hold the machines analytic technology company president WilliamJ of city of the Houghton that bring a city.

Dr. Enders thinks: "The user asks radius of the crucial point of point of cutting tool turning is lesser, because of the corner of edge of the ply that cut bits that did not cut radius decreases. " in the time that goes more than 10 years, he is studying edge machines the problem of the respect all the time. In cutting tool before on blade, not the ply of bits of be sure to is the biggest, edge needs the greatest protection. But, in cutting tool hind on blade, not ply of bits of be sure to drops almost for 0, accordingly honing quantity should be reduced accordingly. To constant honing is measured -- size is made for the blade before protection, the honing quantity on blade is compared after not ply of bits of be sure to is big, the rate of material of cutting blade purify is very accordingly low, raised force of attrition, cutting, temperature to reach wear away. Up-to-date, the technical development that if other side concerns cutting cutting tool,the method that machines cutting blade also does not have is rapid, form of matrix of such as material, chamfer and coating. Use technology of oneself project small geometry, be located in guest evening standard the company of Conicity science and technology of city rolled out Ni Yazhou Cresco to be in same differ cutting tool apparently the edge honing technique that processes a different measurement. This craft uses compact carborundum fiber to brush union to computer number is controlled and process an edge form accurately always, tolerancepublic errand is amounted to 0.

0003 inches, the precision of method of more traditional than much honing raised an amount level. The executive vice-president BillShaffer of Conicity says: "Through controlling edge parameter, craft of project small geometry can stop material purify process when achieving correct honing to measure. Accordingly, edge machines dimension to distributing on cutting blade, maintain some specific not ply of bits of be sure to machines dimension to compare to edge. " he continues to say: "For example, be in but on dislocation razor blade or cutting tool of blade holder type, ministry radius part is carried in cutting tool, edge treatment is shirt-sleeve in edge treatment process not ply of bits of be sure to changes. As not ply of bits of be sure to is reduced, edge machines dimension to reduce. " the efficiency of cutting tool cutting that has metabolic type where a thing can be put to best use is taller, because of its cutting blade dimension produces change, the material that cuts can be clipped in order to prevent between cutting tool and workpiece. Can reduce cutting tool wear and tear so, thereby cutting tool pressure and cutting force are reduced, cutting tool and workpiece temperature rise are contractible also. Prolonged cutting tool life thereby, raise workpiece surface flatness, reduce the formation of burr at the same time. Metabolic type edge can be in almost include the broach, multiform cutting that establishs milling cutter and dumpling knife to wait inside use on cutting tool. Craft of project small geometry still can be in a knife uses same the crucial point to machine a process on foundation of a knife, this kind of craft machines a method to have better consistency than traditional edge. In addition, this craft is OK still form of optimal and microcosmic chamfer is implemented in every cutting application. Below certain circumstance, this kind of practice is meant even honing amount is formed on whole cutting blade; And express to use alterable honing quantity to realize proper where a thing can be put to best use to machine a process below additionally a few circumstances. Proper treatment edge a the most apparent and immediate advantage is to improve cutting tool life. To craft of project small geometry, edge machines the cost that business costs commonly to be a new 10%~20% that replaces cutting tool, and this craft can prolong the life of cutting tool 300%~800% however. It is very important to prolong cutting tool life, have a variety of reason among them, include to be able to be saved be ground again and change the cost of new knife. For example, to make full use of its 5 coordinate machining center, one is located in the company of accurate manufactory ObergIndustries of city of Freeport of Ni Yazhou of guest evening standard, change high-powered hard alloy to cutting tool from high-speed steel cutting tool, the machines with craft of project small geometry blade that used SeimTool firm of city of Latrobe of Ni Yazhou of guest evening standard to offer among them. The toolhouse manager BobBinner of Oberg says: "Through using a project small geometry craft machines edge, ground the time between the knife to be lengthened commonly 300% the left and right sides, this is the tremendous redound that invests craft of project small geometry. Replace time is lengthened between cutting tool still mean can reduce the number that suspends production, reduce labor cost. " Binner thinks more important is indirect cost is saved. "This kind of edge machined a process to eliminate the appearance that break a knife almost, the phenomenon that break a knife can produce a series of undesirable consequence in automation process. The knife happens to be able to cause the domino effect of damaged of downstream cutting tool on the machine tool of unmanned guard. Such breakdown phenomenon can produce huge loss because of attaint cutting tool and costly spare parts, and subsequently problem is possible very difficult rehabilitate. Contain the hard alloy cutting tool of the edge that with the project small geometry craft machines through using, the circumstance come off work that can not changing broach and reamer occasionally makes a few weeks. " the economic benefits that prolongs cutting tool life is highlighted especially in aviation and medical treatment domain, include to want to get cut and process tough data, alloy of such as chromic ferronickel and titanium. CNC Milling CNC Machining