期刊文献+

变形镁合金杯形件反挤压成形工艺研究 被引量:8

Research on inverse extrusion process of wrought magnesium alloys cupulate part
下载PDF
导出
摘要 介绍了一种先进的超塑性反挤压成形新工艺,使用这种工艺将一个工业牌号的变形镁合金AZ31D的圆形坯料成形出一个杯形零件。成形后零件的几何尺寸精度完全满足工程需要无需任何机械加工。这种超塑性成形工艺使这种镁合金材料的微观组织和机械性能得到很大提高。材料的晶粒度由原始坯料的几百微米细化到了5~10微米,材料硬度由原始坯料的43HB提高到了57HB,硬度提高26.7%。文中介绍了试验过程,分析了这种超塑性成形提高材料组织性能的原因。 An advanced superplastic backward extrusion forming new technology is presented in this paper. By using the technology a cupulate part is formed by the commercial wrought magnesium alloys AZ31D. This is an exciting forming test. Firstly, the formed part can meet the engineering requirement in geometric tolerance without any further machining. Secondly the superplastic forming technology has greatly improved both microstructure and mechanical property of the magnesium alloy. For example, the grain size is refined from several hundred μm of the billet to 5-10μm of the formed part. The hardness is increased from 43HB of the original billet to 57HB of formed part. The hardness increment is 26. 7%. In this paper the details of the experiment process are given, and the experiment results are analyzed. Finally the essence of this kind of special superplastic forming is also discussed.
出处 《锻压技术》 CAS CSCD 北大核心 2006年第6期64-66,共3页 Forging & Stamping Technology
基金 国家自然科学基金项目(5027510)
关键词 变形镁合金 超塑性 晶粒细化 wrought magnesium alloys superplastic forming grain refinement
  • 相关文献

参考文献4

  • 1Watanabe H,Mukai T,Higashi K.Low temperature superplastic behavior in ZK60 magnesium alloy[J].Materials Science Forum,1999 (304-306):303-308.
  • 2Mukai T,Watanabe H,Higashi K.Application of superplasticity in commercial magnesium alloy for fabrication of structural components[J].Materials Science and Ttechnology,2000(16):1314-1319.
  • 3Langdon T G.An examination of flow processes in high strain rate superplasticity[J].Materials Science Forum,1999 (304-306):13-20.
  • 4Zhang Yan-shu,Zeng Zhi-peng,Jin Quan-lin.Microstructure properties study of commercial magnesium alloy AZ31D[J].Materials Science Forum,2004 (488-489):641-644.

同被引文献44

引证文献8

二级引证文献22

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部