This paper makes an inquiry into the problem, proceeding form the characteristics, cause and effect of the quench cracks, and proposes som measures to prevent cracks.

• 从淬火裂纹的特征、起因、影响因素入手，对金属材料热处理工件淬火裂纹问题进行了探讨，并提出防止裂纹产生的措施。