轴类零件中细长轴的加工变形是经常遇到的一个加工难点。以某型号中沉淀硬化不锈钢细长轴零件为例(见图1),本零件加工难点是零件长径比为30,基体硬度为37～42HRC(通常长径比大于16属于细长轴类零件,加工中零件的刚性差)。该零件经固溶后,在粗加工过程中表面产生了加工硬化,变形严重,且变形量在0.2～1mm之间。 Axis parts in the elongated shaft deformation is often encountered a processing difficulties. Take a model of precipitation hardened stainless steel slender shaft parts as an example (see Figure 1), the parts processing difficulties is the part length to diameter ratio of 30, the substrate hardness of 37 ~ 42HRC (usually more than 16 are slender shaft parts , The processing of parts of the poor rigidity). The parts after solution, the rough surface in the rough process hardening, deformation serious, and the deformation between 0.2 ~ 1mm.