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随着生产的发展,对机器零部件的性能要求越来越高,许多零件必须采用机械强度高、耐热耐磨性好、热稳定性好、抗腐蚀性能好的材料,如耐热合金、不锈钢和钛合金等。但是这些材料往往加工比较困难.本文针对这些难加工材料,从磨削的角度作一些探讨.一、难磨材料及其磨削时的特点材料磨削的难易程度,主要与材料的成份和热处理工艺有关.当材料中含有铬(Cr)、镍(Ni)、钨(W)、钼(Mo)、锰(Mn)、钛(Tj)、钒(V)、铝(Al)、钴(Co)、铌(Nb)等元素时,往往使材料难以磨削.如何评价难磨材料及其可磨性,目前仍没有统一的标准.有人把剪切力大和金属切除系数小的材料称为难磨材
With the development of production, the performance requirements for machine parts are getting higher and higher. Many parts must adopt materials with high mechanical strength, good heat and abrasion resistance, good thermal stability and good corrosion resistance, such as heat-resistant alloys, Stainless steel and titanium alloy. However, these materials tend to be more difficult to process.This paper aims at these difficult to process materials and makes some discussions from the perspective of grinding.First, the characteristics of difficult-to-wear materials and their grinding The difficulty of material grinding, mainly with the material composition and Heat treatment process when the material contains chromium, nickel, tungsten, molybdenum, manganese, titanium, titanium, vanadium, aluminum, cobalt ( Co), niobium (Nb) and other elements, it is often difficult to grind the material.How to evaluate the hard-to-grind materials and grindability, there is still no uniform standard.Some people will have a large shear force and metal removal coefficient of small materials as hard Abrasives