目前,采用冷镦一次成型新工艺镦制十字槽螺钉的生产过程中,经常遇到的主要问题是十字冲尖易于折断。因而,影响了这一先进工艺的推广和应用。这里根据我们的试制情况介绍一下在双击冷镦机上采用一次大变形量,二次充满型腔的方法镦制十字槽螺钉时提高冲头寿命方面的经验,与大家共同探讨,不断提高十字槽螺钉的生产技术水平。 At present, the use of cold forging a new molding process upsetting cross-recessed screw production process, the main problem is often encountered cross-tip sharp easy to break. Thus, affecting the promotion and application of this advanced technology. Here according to our trial situation introduced in the double-headed cold heading machine with a large deformation, the second full of cavity upsetting cross recessed screw to improve the life of the punch experience, and we work together to continuously improve the cross-slot screw The level of production technology.