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LASER WELDED JOINT, AUTOMOTIVE PART, METHOD FOR PRODUCING LASER WELDED JOINT, AND METHOD FOR MANUFACTURING AUTOMOTIVE PART

机译：激光焊接接头，汽车零件，激光焊接接头的制造方法以及汽车零件的制造方法

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摘要

A laser welded joint has weld metal provided between a plurality of steel sheets. A chemical composition of the weld metal has predetermined components, and average hardness of the weld metal is 350 to 540 in Vickers hardness. In the weld metal, distribution density of porosities having a diameter of 2 µm to 50 µm is equal to or less than 5.0 pieces/mm 2 . In the weld metal, distribution density of oxide inclusions having a diameter of 3 µm or more is 0.1 to 8.0 pieces/mm 2 .

机译：激光焊接接头具有设置在多个钢板之间的焊接金属。焊接金属的化学组成具有预定的成分，并且焊接金属的平均硬度以维氏硬度计为350至540。在焊接金属中，直径为2μm至50μm的气孔的分布密度等于或小于5.0个/ mm 2。在焊接金属中，直径为3μm以上的氧化物夹杂物的分布密度为0.1〜8.0个/ mm 2。

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公开/公告号EP3222745B1

专利类型
公开/公告日2019-08-21

原文格式PDF
申请/专利权人 NIPPON STEEL CORPORATION;
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申请/专利号EP20150862070
发明设计人 MARUYAMA NAOKI;NAITO YASUAKI;YONEMURA SHIGERU;MIYAZAKI YASUNOBU;KUWAYAMA TAKUYA;
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申请日2015-11-19
分类号B23K35/30;C22C38;B23K26/21;B23K26/322;C21D9/50;C22C38/58;B23K35/02;C22C38/08;C22C38/12;C22C38/14;C22C38/16;C22C38/18;C22C38/38;C22C38/42;C22C38/44;C22C38/46;C22C38/48;C22C38/50;C22C38/54;B21D22/02;F16B5/08;
国家 EP
入库时间 2022-08-21 12:30:34

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