Prediction of die wear during hot-extrusion of engine valves

被引：35

作者：

Painter, B ^{[1
]}

Shivpuri, R ^{[1
]}

Altan, T ^{[1
]}

机构：

[1] OHIO STATE UNIV,IND SYST & WELDING ENGN DEPT,COLUMBUS,OH

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 1996年 / 59卷 / 1-2期

关键词：

D O I：

10.1016/0924-0136(96)02294-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Automotive exhaust valves are conventionally manufactured in North America by an extrusion-forging process. Abrasive and adhesive wear during the valve stem extrusion operation shorten die life markedly under the high-pressure, high-temperature conditions. It is desired to reduce this die wear by developing simulation software to predict wear based on process conditions, and then optimizing the process. This paper describes the procedures and results obtained using a computer modeling method developed at the ERC for Net Shape Manufacturing. Results obtained to date indicate that-accurate abrasive and adhesive wear prediction of steel and ceramic extrusion dies is feasible in cases where plastic deformation is not significant.

引用

页码：132 / 143

页数：12