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A Novel Hybrid Process for Drawing Operations

[+] Author Affiliations
Kyle Pender, Gracious Ngaile

North Carolina State University, Raleigh, NC

Paper No. MSEC2013-1253, pp. V001T01A019; 8 pages
doi:10.1115/MSEC2013-1253
From:
  • ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference
  • Volume 1: Processing
  • Madison, Wisconsin, USA, June 10–14, 2013
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-5545-4
  • Copyright © 2013 by ASME

abstract

A novel hybrid process for drawing operations is proposed. This process combines the conventional drawing and hydroforming features. The hybrid drawing die assembly is designed to incorporate multiple die segments engraved with high pressure fluid channels. Preliminary results on drawn Al 6061 specimens under two fluid pressure levels showed that the drawing load can decrease significantly. The hybrid drawing process has also shown that varying the fluid pressure can alter the surface asperities at the tool-workpiece interface in real-time, promoting micro-pool lubrication. This was evidenced by distinct surface topographies observed via scanning electron micrographs and optical micrographs.

Copyright © 2013 by ASME

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