Document Type

Conference Proceeding

Conference

ASME 2011 International Manufacturing Science and Engineering Conference

Publication Date

6-2011

DOI

10.1115/MSEC2011-50135

City

Corvallis, OR

Abstract

Micro/meso-scale forming is a promising technology for mass production of miniature metallic parts. However, fabrication of micro/meso-scale features leads to challenges due to the friction increase at the interface and tool wear from highly localized stress. In this study, the use of high-frequency vibration for potential application in the technology of micro/meso-scale forming has been investigated. A versatile experimental setup based on a magnetostrictive (Terfenol-D) actuator was built. Vibration assisted micro/meso-scale upsetting, pin extrusion and cup extrusion were conducted to understand the effects of workpiece size, excitation frequency and the contact condition. Results showed a change in load reduction behavior that was dependent on the excitation frequency and contact condition. The load reduction can be explained by a combination of stress superposition and friction reduction. It was found that a higher excitation frequency and a less complicated die-specimen interface were more likely to result in a friction reduction by high-frequency vibration.

Comments

This is a conference proceeding from ASME 2011 International Manufacturing Science and Engineering Conference 1 (2011): 465, doi:10.1115/MSEC2011-50135. Posted with permission.

Copyright Owner

ASME

Language

en

Share

Article Location

 
COinS