Tailor die quenching in hot stamping for producing ultra-high strength steel formed parts having strength distribution
Tailor die quenching in hot stamping for producing ultra-high strength steel formed parts having strength distribution
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DOI：
10.1016/j.cirp.2010.03.107
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发表时间：
2010-01-01
影响因子：
4.1
通讯作者：
Okuda, Y.
中科院分区：
文献类型：
--
作者：
Mori, K.;Okuda, Y.
开发了可淬钢板热冲压中的定制模淬火，以生产具有强度分布的超高强度钢成型零件。在冲压过程中，通过将开槽工具保持在下死点，对加热的板材的局部进行淬火。通过工具开槽而在板中产生非接触部分，因此接触部分中的强度由于淬火而高，而非接触部分中的强度由于未淬火而低。形成仅在四个角处具有约1.5GPa的拉伸强度的帽状产品。 (C) 2010 CIRP。
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 1.5 GPa only at four corners were formed. (C) 2010 CIRP.