|
|
Study on the influence of punch deformation on forming cracks of multi-steps PM products |
CHEN Li-e,YU Jian-bo,ZENG Jin-yan,ZHAO Shan-jie |
(Engineering Technology R&D Center, Guangdong NBTM New Materials Co., Ltd., Jiangmen 529000, China) |
|
|
Abstract There are many reasons for forming cracks of multi-steps PM products. The effect of punch deformation on the forming cracks was mainly studied. The different punch has different deformation when forming, which make the products generate cracks. The simple punch deformation can be calculated by Hooke’s law, and when the punch structure is complex, the SolidWorks finite element analysis can be used to calculate the deformation. Under the guidance of Hooke’s law, the deformation difference between punches is reduced by changing the forming process or the punch design, thus the PM products crack is avoided. Hooke’s law is a good guide in design stage to avoid multi-steps PM products forming cracks caused by punch deformation.
|
Received: 29 July 2015
Published: 29 August 2016
|
|
|
|
[1]印红羽,张华诚主编,粉末冶金模具设计手册[M].北京:机械工业出版社.2002:92-94,239-253.[2]韩凤麟主编,粉末冶金模具模架实用手册[M].北京:冶金工业出版社.1998:124-129.[3]周学斌,何东升,黄大新等.基于SolidWorks设计及有限元分析在机械工程中的应用[J].科技信息,1998,31:129-130.[4] 刘鸿文.材料力学.北京:高等教育出版社,2008 |
|
|
|