磨削裂纹是发动机曲轴淬火处理后磨削过程中出现的主要缺陷之一,一般曲轴经感应淬火后,表面硬度高,内应力很大,如果回火不充分,磨削参数选择不当(磨削速度太快、砂轮硬度太高、密度太大或冷却介质的冷却能力太强),曲轴表面将会出现磨削裂纹。我公司生产的D1146/T曲轴采用淬火磨削工艺,其材质 Grinding cracks is one of the main defects in the process of grinding the engine crankshaft after quenching. Generally, after the crankshaft is induction hardened, the surface hardness is high and the internal stress is very large. If the tempering is not sufficient, the grinding parameters are not properly selected The speed is too high, the hardness of the grinding wheel is too high, the density is too high, or the cooling capacity of the cooling medium is too high) and grinding cracks will appear on the surface of the crankshaft. My company produces the D1146 / T crankshaft quenching grinding process, its material