Punching process including thickening of hole edge for improvement of fatigue strength of ultra-high strength steel sheet
A punching process including thickening of a hole edge of an ultra-high strength steel sheet with a taper punch and step die was developed to improve fatigue strength of the punched sheet. In this process, the sheet was punched by the bottom of the punch, and subsequently the hole edge was thickened...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2014-01-01
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| Series: | Manufacturing Review |
| Subjects: | |
| Online Access: | https://mfr.edp-open.org/articles/mfreview/full_html/2014/01/mfreview140003/mfreview140003.html |