Strike the cutting tool use in type cutting

Together with because the harmful material in cutting fluid, cause a harm to the worker's health, cause environmental pollution to wait. In conventional cutting treatment, the cutting fluid in wet cutting has important place, but also existing a lot of malpractice. For example, maintain a large cutting fluid system to need to invest a lot of capital, at the same time need adds antiseptic regularly, change cutting fluid, raised a lot of cost consequently, its fee scale already occupied the 15%~17% that always produces cost, and the 2%~5% that cutting tool cost holds totle drilling cost only normally.

Together with because the harmful material in cutting fluid, cause a harm to the worker's health, cause environmental pollution to wait. So, its use brought more and more issues. From these respects for, dry cutting has more advantage. The cutting tool in dry cutting is due more exceedingly good high temperature resistant function (hot rigid) with wear-resisting function, in current cutting tool data, wait like new-style hard alloy, pottery and porcelain, CBN and PCBN have enough high temperature resistant abrasiveness can, can use below dry cutting condition. And, application of material of contemporary cutting cutting tool suits to do cutting more at high speed is machined. Qualitative like CBN and advanced hard alloy material grade, have the cutting tool stuff that coating protects especially, do not use cutting fluid to be cut more businesslikely actually below high speed high temperature with life. Dry cutting does the cutting tool material of cutting to must want to have admirable hot rigid and wearability to the requirement of cutting tool, with can bearing effectively the coefficient of friction with the high temperature inferior; of cutting process, with can reducing cutting tool and the intensity with the ascendant higher; that cuts the attrition between bits and workpiece surface to restrain cutting temperature and impact resistance can, with can bearing greater cutting power is mixed poorer cutting condition. Want to realize dry cutting, cutting tool material has tall heat-resisting property (hot rigid) with wear-resisting function particularly must. At present cubic nitrogen changes boron (CBN) , get together nitrogen of brilliant cubic metre changes boron (PCBN) , diamond, get together brilliant diamond (PCD) , pottery and porcelain (A12O3, Si3N4) , cermet (CERAMIC) , exceed the cutting tool material such as fine grain hard alloy and hard alloy coating to be used extensively already at doing cutting in. Yi Sika developed nearly two years numerous and usable the cutting tool material at doing cutting: IB90 reachs IB85, CBN content is as high as 85% with 90% , the wearability of bit and tenacity are tall, can answer what interrupted cutting place brings to shake, recommend the interrupted cutting that is used at cast-iron high speed cutting and hard steel of temper by dipping in water and rough machining. The brand of low CBN content, IB55, IB50, CBN content is 50% with 55% , more agree with semifinishing machining and finish machining. IB10H belongs to the CBN that exceeds fine grain, wearability and tenacity are taller, use at high speed successive cutting, can obtain fine grain of tall exterior quality;IB20H and medium grain CBN, use at successive - ; of treatment of slight interrupted cutting still has IB10HC, IB25HC and TiN of IB25HA besmear Fu, Ti(C, n, o) and Ti(C, n) , apply at all sorts of corresponding circumstances. Special cutting tool coating undertakes to cutting tool coating is handled, it is the important way that improves cutting tool performance. In have the stuff with very high performance of heat-resisting of Fu of besmear of surface of matrix of coriaceous cutting tool and wear-resisting, make its are in in cutting process cutting tool and cut a heat shield barrier raised between bits, prevent quantity of heat to deliver cutting tool matrix to reduce the quantity of heat that cutting tool wears away and produces, reduce cutting tool / the coefficient of friction between workpiece surface, have certain lubricant effect, coating cutting tool is so optimum at doing cutting. For instance A12O3, it is alumina base the main ingredient of pottery and porcelain, a12O3 coating has good mechanical performance, heat up rigid and chemical stability wonderfully, accordingly, a12O3 coating razor blade is had fight crescent moon goodly to wear away depression ability, inferior thermal conductance, lift as temperature its thermal conductance is reduced, this kind of character is in cutting treatment, but the cutting blade that block up heat in metal cutting passes cutting tool, prevent cutting blade be heated to produce plasticity to be out of shape place brings about abrupt invalidation, yisi cartoon is too medium lukewarm chemical coating (the α of MTCVD) - TEC, optimize the α look that there are good oxidation stability and tall thermal stability in A12O3, improve A12O3 multilayer coating. Generally speaking, coating divides kinds big: One kind is hard coating, be in namely apparently besmear TiN, TiC, TiCN, TiA1N, A12O3, CBN, diamond, kind the coating such as material of rice of diamond DLC, accept, hardness of coating of cutting tool of this kind of coating is tall, wearability good; is coating of " soft " another kind, this kind besmears the anti-friction coating such as M0S2 of compound of sulfur a group of things with common features or WS2 or TaS2, showing reduce coefficient of friction, cutting tool of this kind of coating also says " is self-lubricating cutting tool " , cutting tool of this kind of coating offsetted the lubricant effect that does not have cutting fluid on certain level, boycott cutting temperature rises, suit to do cutting very much. Yi Sika's IC908, IC907, IC903 belongs to hard coating, they collect appliance to have good fight mechanical concussion and thermal shock function exceed fine grain hard alloy to serve as matrix, besmear through having the PVD coating technology of lower coefficient of friction Fu is high temperature resistant material TiAlN, fight oxidation temperature tall, tiAlN film produces in the meeting when cutting, it is better to have fight oxidation function, begin oxidation temperature to be ℃ of 700 ℃ ~800, the oxidation temperature of the coating such as prep above TiC, TiN. TiAlN is taller than TiN hardness when high temperature, thermal stability is good, the oxidation film of the generation when its high temperature. Ameliorable cutting tool and workpiece / the attrition that cuts bits, reduce caloric generation, in addition, the thermal conductance of TiAlN coating also wait for coating under TiN, have adiabatic effect thereby, higher temperature can bear when making cutting tool is doing cutting. PVD-TiAlN coating, hardness and TiCN, TiN comparatives, and thermal stability temperature is higher than TiCN and TiN, achieve 1450 ℃ . Coating of this kind of TiAlN follows A1 content rise, its hardness is taller, fight high temperature to rupture the gender is stronger, have very tall hardness and wear-resisting property, and oxidation temperature is constant. Come nearly two years, yi Sika uses ultrathin TiN and TiAlN to undertake alternant besmear Fu to cutting tool again, the cutting tool of place besmear Fu has conglutinate power strong, hear resistance is mixed high it is good to fight abrasiveness wait for character, collected the advantage of the coating such as TiN, TiAlN and TiNC, next SUMO-TEC of technology of reoccupy coating aftertreatment, raise tenacity and wearability further, reduce exterior coefficient of friction, make cutting area temperature lower, sex of the blade that fight collapse and fight sex of the tumour that accumulate bits much better, be machined in treatment great majority thereby more reliable and abiding cutting tool life all can be acquired when material, bit durability increased 20%~280% .

The special design of cutting tool structure is in respect of structure of cutting tool geometry, stress of design of dry cutting cutting tool is begged abide by " of temperature of " low cutting to design a principle, the quantity of heat that design of cutting tool structure must consider to make machine the generation in the process as far as possible little, that is to say stress of cutting tool structure is begged accomplish low cutting force and low attrition. Normally cutting tool cannot get used to dry cutting, for this, dry cutting treatment should optimize parameter of cutting tool geometry, ask cutting tool is had namely bigger before horn, cooperate appropriate cutting blade appearance, the Si Ka that be like Yi of all sorts of milling razor blade - PDR and - PDR HM chamfer, use blade of zero small water chestnut and design of Shuang Zhengqian horn, the intensity that reduced cutting force to reinforce point again namely and look heat up function. To reduce heat in metal cutting, yi Sika is mixed in car razor blade, groove razor blade the setting on face of the knife before mill razor blade strengthens arris, surface of scale shape cutting can be formed in osculatory area, cutting tool and the osculatory area that cut bits are reduced greatly, majority quantity of heat is cut bits is taken away, cutting temperature is reduced greatly than common razor blade, also increased to cut corner at the same time, make cutting tool life is being shown rise. In addition, consider the biggest lubricity of cutting tool surface, prevent to accumulate the generation of bits tumour, yi Sika took the lead in undertaking to cutter hub hard nickel is crossed layer and contain Ti to cross a layer, raised the hardness of cutter hub surface and lubricity greatly. The outline of form of the chamfer that discharge bits of cutting tool also needs to consider " of temperature of " low cutting to design a principle, the cutting tool in making sure low attrition cuts the flow of bits to be machined in order to decrease and cut the attrition between bits, make a bits convenient and quick, reduce accumulation of quantity of heat, for this, yi Sika is used in milling cutter and groovy knife domain establish structure of outfit razor blade, the space discharging bits that avoids to discharge bits to be increased cutter hub by block up. The treatment of prospective dry cutting of dry cutting involves coating of cutting tool material, cutting tool not only, and still involve structure of cutting tool geometry, knife handle each respects such as means of dosage of machine tool of structure, treatment, cutting, treatment. This need research and development is new-style cutting tool material, pair of cutting tool material and workpiece material prevent when the reasonable collocation that notices cutting tool material and workpiece material and dry cutting diffuse, felt. Research of data of new-style cutting tool basically is in centrally exceed material of strong cutting tool, the respect such as the high-speed steel with cermet, pottery and porcelain, coating, superior performance and hard alloy. Yi Sika takes the research and development of coating cutting tool seriously especially, because coating cutting tool is integrated tall hardness and wearability, tall hear resistance, tall tenacity, tall fight felt function, tall chemical stability and low coefficient of friction, the development of dry cutting technology relies on the development of technology of cutting tool coating greatly. Besides problem of the hardness that studies cutting tool data, tenacity, thermal stability, still have stuff of different cutting tool the adaptability in dry cutting, the action in differring to be in to do cutting by cutting material, characteristic, function. Parameter of cutting tool geometry is designed, what bit appearance reachs geometrical parameter is reasonable and affirmatory, function of dry to developing cutting tool adequately cutting is very main, the bit figure with taller intensity of Yisika's so ceaseless also research and development and more the; of bit clamp means of firm considers what knife constitution measures to distributing those who adjust is reasonable, make cutter hub expands to be waited a moment equably. To geometrical parameter character, we stress principle of temperature of low cutting of small cutting force. Dry cutting is the manufacturing concept that faces environmental cleanness is specific reflect, it reduced manufacturing cost not only, promoted the progress of cutting tool technology, more brought a kind of brand-new green to make a technology, it is the objective that manufacturing industry will pursue eventually. CNC Milling