零件热处理的目的,是通过热处理以获得理想的机械性能。要达到这个目的,设计人员在选择材料和确定热处理的技术要求时,应与热处理工艺人员密切配合,才能得到理想的结果。同样,机加工工艺和热处理工艺之间相互切磋,合理安排工艺流程,共同摸索热处理的变形规律等,也将对保证零件的加工质量起着重要作用。生产实践证明:热处理工艺与设计、机加工工艺是相互促进,只有共同努力,才能使设计、工艺水平得到提高。一、材料的选择 The purpose of the part heat treatment is to obtain the desired mechanical properties by heat treatment. To achieve this goal, designers should select the materials and heat treatment to determine the technical requirements, and heat treatment process should work closely with people in order to get the desired result. Similarly, the machining process and heat treatment process of mutual understanding, reasonable arrangements for the process and work together to explore the deformation of heat treatment, etc., will also ensure the quality of parts processing plays an important role. Production practice shows that: heat treatment process and design, machining process is to promote each other, and only by working together to make the design and technology levels have been improved. First, the choice of materials