刘雅辉,刘淑梅,何文涛,等.连杆无飞边锻造工艺及模具系统研究[J].精密成形工程,2014,6(6):84-87,121.
LIU Ya-hui,LIU Shu-mei,HE Wen-tao,et al.Flashless Forging Process and Tool System of Connecting Rod[J].Journal of Netshape Forming Engineering,2014,6(6):84-87,121. |
| 连杆无飞边锻造工艺及模具系统研究 |
| Flashless Forging Process and Tool System of Connecting Rod |
| 投稿时间：2014-09-15 修订日期：2014-11-10 |
| DOI：10.3969/j.issn.1674-6457.2014.06.013 |
| 中文关键词: 连杆 闭模锻造 无飞边 模具系统 数值模拟 |
| 英文关键词: connecting rod closed die forging flashless tool system numerical simulation |
| 基金项目:国家自然科学基金(51301105);民用飞机平尾壁板时效成形工艺研究项目(B-8932-13-011);上海工程技术大学研究生科研创新项目(13KY0516) |
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| 中文摘要: |
| 目的 研究连杆无飞边锻造工艺,以及闭模锻造过程中中间工序件的设计和所需的模具系统。方法 通过建立有限元模型,分析连杆的预锻和终锻过程中金属流动长度、成形载荷和模具寿命,为模具设计提供数据支持。结果 数值模拟结果表明金属充模效果良好;连杆大端主要在预锻中成形,而连杆小端和杆部主要在终锻中成形;预锻和终锻的最大成形载荷分别为437 t 和850 t;连杆大端的模腔圆角为模具失效危险区。结论 通过辊锻制坯、预锻分配物料和终锻精密成形,实现了连杆的无飞边锻造。 |
| 英文摘要: |
| Objective To investigate the flashless forging process connecting rod, as well as the design of intermediate goods and the die system needed for closed-die forging. Methods Finite element model was estimated to analyze the metal flowing path during pre and final forging, forming load and tool life, which provided data support for the tool design. Results Results of numerical simulation showed that: the metal die-filling was desired; the big end of connecting rod was mainly formed in the pre-forging, whereas small end and stem were mainly formed in the final forging; the maximum forming loads of pre and final forging were 437 t and 850 t, respectively; the dangerous zone of tool failure occurred at the big end of connecting rod in the cavity. Conclusion Through rolling for blank preparation, pre-forging for materials distribution and final forging for precision forming, flashless precision forging for connecting rod was achieved. |
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