深孔磁极的冷挤压加工  

The cold extrusion processing for the magnetic pole with deep hole

作　　者：李洪杰 罗阳 

机构地区：[1]中航天义电梯成套设备有限公司,贵州遵义563002 [2]贵州天义电器有限责任公司工具分厂,贵州遵义563002

出　　处：《模具技术》2015年第1期58-60,63,共4页Die and Mould Technology

摘　　要：为了解决零件磁极的冷挤压加工技术难题,对磁极进行了工艺性分析,并对零件毛坯、成形变形程度、冷挤压力等进行了工艺计算,设计出了冷挤压模具。通过模具改进,凸模端面120°小尖角分解了凸模的垂直受力方向,改善了凸模的纵向稳定性,最终加工出合格零件,满足了工艺的要求。该模具结构简单,冷挤压工艺方案可靠。In order to solve technical problems of the cold extrusion processing tor the parts of magnetic pole with deep hole, the manufacturability analysis was carried out and the process calculations for blank parts, forming deformation degree and cold extrusion pressure were executed. According to results, the cold extrusion die was designed. Through the die structure improvement, the convex die with 120° angle on the end surface could decompose the vertical stress and improve the longitudinal stability of the convex die. Using this method, the products could satisfy the quality requirements. It proved that this die structure was concise and the cold extrusion process was reasonable.

关 键 词：零件磁极 冷挤压 工艺分析 工艺计算 模具 

分 类 号：TG386[金属学及工艺—金属压力加工]