机车启动齿轮坯加工工艺
Forming Process of Starting Gear Blank for Locomotive
任小鸿
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作者单位：（四川化工职业技术学院， 四川 泸州 646005）
中文关键字：启动齿轮；花键；冷挤压；成形
英文关键字：start gear; spline; cold extrusion; forming
中文摘要：通过对启动齿轮成形工艺进行分析，提出了采用冷镦成形齿形外圆和冷挤压花键成形工艺；介绍了变形程度计算，给出了坯料尺寸及挤压力的计算；对冷挤压花键模的设计做了介绍，其保证了该零件的顺利成形，为类似零件的制造提供参考。
英文摘要：Through analyzing the forming process for starting gear, the forming process of cold heading cylindrical profile and cold extruding spline was proposed; the deformation calculation was introduced, the blank size and extrusion force was given; the design of cold extrusion spline die was introduced, the die can ensure smoothly forming the parts, and provides a reference to similar parts manufacturing.