摘要
对圆钢冷拉加工成的花键轴毛坯表面开裂样进行化学成分、硬度、金相组织等分析研究。结果表明,圆钢轧制过程形成的表面缺陷是冷拉加工的花键轴毛坯开裂的主要原因,并提出预防花键轴毛坯表面开裂的措施。
The chemical composition,hardness,microstructure etc of the cracked spline shaft blank were analyzed by the cold extrusion. The results show that the rolling surface defect is the main reason for spline shaft blank cracking,then the preventive measures for cracking on the surface of spline shaft blank are put forward.
出处
《热处理技术与装备》
2015年第2期17-20,共4页
Heat Treatment Technology and Equipment
基金
汽车零部件用高品质特殊钢的关键技术研究及产业化攻关(2011A091102005)
关键词
花键轴
开裂
原因
spline shaft
cracking
reason
