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.
- Manufacturing Engineering Division
A Novel Hybrid Process for Drawing Operations
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Pender, K, & Ngaile, G. "A Novel Hybrid Process for Drawing Operations." Proceedings of the 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. V001T01A019. ASME. https://doi.org/10.1115/MSEC2013-1253
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