FINITE ELEMENT SIMULATION OF BACKWARD MICRO EXTRUSION FOR ANNEALED COPPER

被引：0

作者：

Uddin, Md Mosleh ^{[1
]}

Mondal, Debabrata ^{[1
]}

Herrington, Paul D. ^{[1
]}

机构：

[1] Univ New Orleans, New Orleans, LA 70148 USA

来源：

PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2018, VOL 2 | 2019年

基金：

美国国家科学基金会;

关键词：

Micro-forming; backward extrusion; micro extrusion; plastic deformation; FRICTION; DESIGN;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The growing demand of miniaturized products is tremendously influencing the progress of micro-forming technologies. The implementations of micro technologies in the field of microelectronics, sensors, and medical equipment necessitate versatile micro-forming processes. These processes facilitate the bulk production of micro parts with higher precision, minimum material waste, and better surface finish. However, micro-forming technologies are still expensive due to the limitations of traditional materials and stringent size requirements. Finite element simulations are being widely used to analyze the manufacturing process parameters before going into production. In this research, a backward micro-extrusion process is simulated for annealed copper by using commercial Finite element simulation software. The effects of different punch diameters, friction coefficients, punch velocities on the load-displacement curves and the resulting strain distributions are investigated. To overcome limitations of the post-yield hardening data from the uniaxial compression test, the Ramberg-Osgood model is proposed to predict the responses at the higher plastic strain.

引用

页数：8

共 18 条

[1] Investigation of Process Parameters for the Backward Extrusion of Arbitrary-Shaped Tubes from Round Billets Using Finite Element Analysis [J].