前言 精密丝杠是高精度机床中关键的零件之一,工艺复杂,制造困难。在使用性能方面,要求耐磨性和尺寸精度稳定性好;在工艺性能方面,要求加工变形少,容易磨削加工。我厂精密淬硬丝杠经过近几年采的摸索,目前有两种工艺:一种是铬钨锰合金工具钢锻件,经过高温水冷正火后球化退火,粗 Introduction Precision screw is one of the key parts of high-precision machine tools, complex technology, manufacturing difficulties. In the use of performance, the requirements of wear resistance and dimensional accuracy of good stability; in terms of process performance, requiring less deformation, easy grinding process. I plant precision hardened screw mining in recent years mining groping, there are two kinds of technology: one is chrome tungsten manganese alloy tool steel forgings, after high temperature water-cooled normalized ball annealing, coarse