机械零件压力加工性能：是指钢材承受冷热变形的能力。冷变形性能好的标志是成型性良好、加工表面质量高，不易产生裂纹；而热变形性能好的标志是接受热变形的能力好，抗氧化性高，可变形的温度范围大及热脆倾向小等。
Pressure processing performance of mechanical parts: refers to the ability of steel to withstand cold and hot deformation. Good cold deformation performance is characterized by good formability, high processing surface quality, and not easy to produce cracks; while good hot deformation performance is characterized by good ability to accept hot deformation, high oxidation resistance, large deformable temperature range and small hot brittleness tendency.