硬质合金具有较高的冷硬性、热硬性、耐磨性,较低的坚韧性,导热性。它的“三高两低”特性,使之在切削加工中得到广泛运用,但也导致了硬质合金刀具在制造、刃磨及切削加工中,造成裂纹的产生,影响刀具的工作性能、生产效率和成本。因此,尽一切可能减少或避免裂纹的产生,是十分重要的。裂纹是硬质合金刀具最常见的缺陷,其造成的原因较为复杂。但是,通过生产现场的仔细观察和认真分析,并采取必要措施,可有效地寻找裂纹的 Carbide has a higher chill, thermosetting, wear resistance, low toughness, thermal conductivity. Its “three highs and two lows” features make it widely used in cutting, but also lead to the production of carbide cutting tools in the manufacturing, grinding and cutting, resulting in cracks, affecting the working performance of the tool, the production Efficiency and cost. Therefore, it is very important that we make every effort to reduce or avoid the occurrence of cracks. Crack is the most common carbide cutting tool defects, the reason is more complicated. However, through careful observation and careful analysis of the production site and taking the necessary measures to effectively find cracks