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1.Improv ements in productivity and formability by water and die quenching
in hot stamping of ultra-high strength steel parts¡£
2.In addition, blankholding was delayed to
improve hardening of a flange portion in hot stamping with water
and die quenching.
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2Â¥2016-06-09 21:40:04
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534539645: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2016-06-10 16:06:27
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3Â¥2016-06-10 09:23:17
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534539645

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ÒýÓûØÌû:
3Â¥: Originally posted by peterflyer at 2016-06-10 09:23:17
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Without water, deformation of the
blank tends to concentrate outside the border ofthe punch corner
due to lower flow stress for higher temperature than that at the
corner in contact with the punch.
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4Â¥2016-06-10 16:17:51
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ÒýÓûØÌû:
4Â¥: Originally posted by 534539645 at 2016-06-10 16:17:51
Without water, deformation of the
blank tends to concentrate outside the border ofthe punch corner
due to lower flow stress for higher temperature than that at the
corner in contact with the punc ...

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