锻压技术

截齿温挤压精密成形快换模具系统

英文标题：Fast exchanging mould system for warm extrusion precision forming of pick

作者：马世博孙红磊赵军邵明杰王东风马进

分类号：TG376.5

出版年,卷(期):页码：2016,41(6):83-90

摘要：

针对截齿齿体的结构特点，提出了采用3种温挤压精密成形工艺成形截齿齿体。分别为镦挤工艺成形普通轴对称类截齿、浮动组合模具镦挤工艺成形局部大尺寸类截齿和镦挤联合采用径向挤压工艺成形旋翼类截齿。根据不同工艺和模具特点，设计了截齿齿体温挤压精密成形快换模具系统总体结构，实现了不同上、下凹模成形不同截齿，并且上、下凹模可以根据截齿的具体型号和尺寸进行更换，无需其他模具零件。并进行了温挤压精密成形实验研究，分析了成形后截齿的微观组织。结果表明：温挤压精密成形快换模具系统适合于成形各类截齿，且成形齿体表面质量高、模具成本低、模具更换时间短，显著提高了生产效率。

Considering structural characteristics of the pick body, three kinds of warm extrusion precision forming technologies were proposed to form the pick body, namely, the upset-extrusion technology for common axisymmetric pick, the floating assembling die upset-extrusion technology for local large size pick, and the upset-extrusion with radial-extrusion technology for the rotary wing pick. The quick change mould system of warm extrusion precision forming of pick body was designed according to various technologies and mould requirements to realize the corresponding various picks by different top and bottom dies. The dies could be replaced according to the specific type and the size of pick without replacing the other parts of the mould. The warm extrusion precision forming experiment was carried out, and the microstructure of pick formed was analyzed. The results show that the forming pick by warm extrusion quick change type mould system is suitable for forming different kinds of picks, which are of fine surface quality, low cost, less time for changing mould, and high productivity.

基金项目：

基金项目:河北省教育厅青年基金资助项目（QN2014038）；河北省青年科学基金资助项目（E2015208105）；通用航空产业重点工程实验室平台基金资助项目（TY15）

作者简介：马世博（1980-），男，博士，讲师 E-mail：mashibo1980@163.com 通讯作者：邵明杰（1983-），女，硕士研究生 E-mail: shaomingjie1983@163.com

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