The stainless steel that newest turning knife sheet pledges and breaks bits chamfer to offer higher capability to apply extensively on industry to stainless steel turning posed enormous challenge to tool industry, in research and development new turning knife sheet pledges and break bits chamfer form to must consider their machinability. One group is in chemical, food, papermaking and pulp industry below corrosion environment the stainless steel data that provides very long service life to be cut quite easily is being used increasingly. These material are to offer normally very good be able to bear or endure the chromium of corrode sex base iron or carbolic steel. Other group is other the stainless steel material of the chromium that contains all sorts of different proportion and nickel is used in need very high tensile strength is even anticorrosive aviation industry. The high temperature alloy that their limits goes to to be machined very hard from the low nickel alloy of secondary treatment difficulty has. Although the processability fluctuation of stainless steel is very big,treatment is challenged, they very stick, the particle that answering generation of pair of cutting cutting tool to stick the bits, tumour that accumulate bits and the coating particle that cause from this is coating and matrix union department even ' pull out ' wait for potential problem. But, company of main cutting cutting tool been designinging newest core hard alloy to material pledges and break bits chamfer to consider these failure mode in the light of today's automation line, be pushed and offer turning bit widely. Difficulty waits in be being used at batch production to be cut easily now the solution with the good economy of the stainless steel of size range of pipe bent gets easily. Recombining tall cutting tool of qualitative hill of hard alloy material according to tenacity is to be aimed at condition and application are processed in wide range (include to be close to final figure and stainless steel treatment) in one of cutting tool suppliers with the complete set that raises function to design material of new core lathe tool to pledge. In hard alloy respect, hill high company recombines it to be aimed at current treatment severally thoroughly (TP200) with heavy rough machining (TP300) core turning material is qualitative, make its offer the better caking property and tenacity are better cutting blade between matrix and rock-bottom coating. Two kinds of material are character on the matrix that has rich cobaltic area besmear changes titanium by carbolic nitrogen (TiCN) , alumina (Al2O3) change titanium with nitrogen (TiN) compound coating of composition. According to the Bob Goulding of fixed product manager of Carboloy, the material after recombining is offerred character in the light of the main character that improves data of treatment stainless steel. It is better that coating is mixed fight the smooth very hard end face coating that sticks bits to reach the tumour that accumulate bits. Goulding says, adopt coating deposit technology- - in deposit of lukewarm chemical gas phase (coating undertakes below inferior temperature) it is good that progress gets tenacity with smooth coating, cause life very long. He explains, ' in the hardness with the CVD all coating with lukewarm craft thicker reservation and wearability, it is better to still give you a tenacity smoother make crackle the smallest smallness coating. ' although general the has rich cobaltic area matrix with pledge with the material of heavy rough machining both contains tenacity good, the scale of matrix tenacity and coating wearability is distinguishing. According to Goulding, the coating with TP200 qualitative material offers exceedingly good wearability below higher cutting rate, and the tenacity of TP300 material qualitative matrix is better, the ability when making its process high strenth stainless steel in inferior speed rises. ' our matrix tenacity that weighs rough machining material to pledge is particularly good, combine thick MTCVD coating, make your cutting blade hard and tenacity is very good, ' Goulding says. ' you get having crackajack fight the wearability with effective tatty of cutting blade groove. ' be based on these character, goulding recommends current ability to pledge TP200 cuts the high speed cutting of ferrite stainless steel with Yu Yi, and the high strength that TP300 material uses at secondary treatment difficulty character does not become rusty the low speed application of alloy. The solution basis that the chamfer that break bits designs Goulding, the form of proper the chamfer that break bits that is used at stainless steel treatment will have a model, the core after hill high company recombines ' M3 ' groovy form is used at arriving gently in carry cutting. Can use Yu Gang the form of this kind of chamfer of finish machining and the core after recombining ' MF2 ' the negative width pouring arris that groovy form designs change and angle will offer be in include Xiao in the limits of very wide application that cuts deep Gao Jin to give break bits effectively. Addition cutting blade strength conduces to the control when applying with adjacent and final figure in stainless steel cutting the groove in to wear away below tall feed. Pervade their applied limits, new groovy form design still provides better cutting tool life. An effective element is cut corner, it is promoted freer cutting and drop the temperature that cut bits. Another is angle of the control that cut bits, it places politicly on point of a knife ' apophysis part ' replace a tough stand that break bits, will control what bits place needs to cut bits curly. The apophysis that presses continuously conduces to a contact that cuts bits and razor blade restricting mere two nod: Cut horn and apophysis itself (cut a corner) . The result is, deliver the quantity of heat to bit and cutting force to decrease, improve cutting tool life thereby. Between two contacts dot quite wide also, so any diffuse by face of the knife before cutting what bits and reaction of hard alloy chemistry cause wear away to will not be brought up together and cause bit early failure. A few kinds of character that Goulding points out to these are designed can rise explicitly with arrive gently in the function of stainless steel of treatment of form of chamfer carrying M3. For example, cut what bits contact nods to reduce a help stick bits, and the welding stress that cuts horn to reduce material or the tumour accumulating bits in the chamfer that break bits, those who prevent likely coating and hard alloy material ' pull out ' . Additional, cut horn to machine sclerosis to lightening workpiece face helpful, machine to the stainless steel of many return trips especially. One of this kind of consequence that machine sclerosis are to cut the groove in to wear away, but as a result of the cutting blade strength that begins from point of a knife when M3 breaks bits chamfer high friend is affected the smallest. Although current core turning ability is mixed character,tall nickel stainless steel machines plan bits chamfer is medium to be being cut easily the very good performance that the stainless steel treatment of limits provides treatment difficulty is behaved, but the case that has not succeeded about the stainless steel data that processes extremely hard. ' as the nickel in stainless steel / the addition of chromic content, normally you issue treatment in very low rate, ' Goulding says. ' the huge pressure that you need the cutting blade with very high intensity to resist this kind of material needs cutting. If cutting blade is too sharp,bit is met disintegrate. ' these need are satisfied below the condition at present, shangaodi lays the TP40 cutting capable person with a kind of very good tenacity intensity of blade of qualitative, cutting is very high ' MR7 ' the chamfer that break bits and tenacity are very good ' R7 ' bosseyed chamfer form. In the meantime, the material of the tenacity with the edge cutting wonderful blade that the company is studying to new be inning resists burst offers place to need in application of tall alloy stainless steel and good wearability is qualitative / combination of the chamfer that break bits. ' we are changing our costume or dress in exploration the possibility that the stainless steel material that our TP200 and TP300 material add on another kind of chamfer that break bits to satisfy wider range character machines, ' Goulding says. CNC Milling