Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10673061 | CIRP Annals - Manufacturing Technology | 2010 | 4 Pages |
Abstract
Tailor die quenching in the hot stamping of quenchable steel sheets was developed to produce ultra-high strength steel formed parts having strength distribution. Local portions of the heated sheet were quenched by holding grooved tools at the bottom dead centre during the stamping. Non-contact portions were generated in the sheet by grooving the tools, and thus the strength in the contact portions is high owing to the quenching and that in the non-contact portions is low owing to the lack of the quenching. Hat-shaped products having a tensile strength of approximately 1.5Â GPa only at four corners were formed.
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Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
K. Mori, Y. Okuda,