发明名称 |
WELDING METHOD FOR ZINC PLATED STEEL |
摘要 |
PURPOSE: A galvanized steel sheet welding method is provided to select a proper welding method and to obtain decisive process conditions, thereby suppressing a liquid metal embrittlement phenomenon generated when welding a galvanized steel sheet as it as possible. CONSTITUTION: A galvanized steel sheet welding method includes the following steps of: preparing a target galvanized steel sheet; and welding the galvanized steel sheet with a disc laser. The power of the disc laser is 3-5kW, and the welding speed is 7-15 mpm. The galvanized steel sheet is welded to make a welding heat-affected zone have a width of 0.2 mm or less from a melting boundary line and to make the width of a surface bead to be 0.3-0.8 mm. The galvanized steel sheet is high-manganese steel sheet. |
申请公布号 |
KR20130111748(A) |
申请公布日期 |
2013.10.11 |
申请号 |
KR20120033866 |
申请日期 |
2012.04.02 |
申请人 |
POSCO |
发明人 |
KIM, YOUNG GON;WOO, IN SU;KIM, CHUNG HA |
分类号 |
B23K26/20 |
主分类号 |
B23K26/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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