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| 缩径挤压工艺及模具设计 |
| Necking and Extrusion Technology and Die Design |
| Received:August 23, 2012 Revised:September 10, 2012 |
| DOI： |
| 中文关键词: 缩径 反挤压 组合凹模 |
| 英文关键词: necking backward extrusion combination die |
| 基金项目: |
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| 中文摘要: |
| 根据零件成形特点，分析了成形前的坯料加工工艺，找出了坯料加工与挤压成形的切入点，设计了正挤缩径与反挤成形组合工艺装置，综述了缩径挤压模具的设计要点、模具结构、工作原理及实际应用效果。 |
| 英文摘要: |
| According to the forming characteristics the billet preparation before forming is analyzed and extrusion is taken as a procedure. The combined die of forward extrusion necking and backward extrusion is designed. The main points of die design, die structure, working principle and actual application effect are introduced. |
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