发明名称 |
PROJECTION WELDED PANEL SPACER AND METHOD OF MAKING THE SAME |
摘要 |
A method for making a spacer assembly comprises: forming a plurality of projections (56) along an edge of a portion of sheet metal; roll forming the portion of sheet metal into a tubular configuration (72); positioning the roll formed portion of sheet metal and a metal base member (16) to which the roll formed portion of sheet metal is to be welded in a discharge welding apparatus having a pair of electrodes so that the projections (56) of the roll formed portion of sheet metal contact a surface of the metal base member (16); providing a force so that the projections are disposed in forcible engagement with the surface of the metal base member; and supplying an electrical current between the pair of electrodes and through the roll formed portion of sheet metal and the metal base member so that the projections reach a molten metal stage and are subsequently solidified to enable the roll formed portion of sheet metal to be welded to the metal base member. |
申请公布号 |
WO9925599(A1) |
申请公布日期 |
1999.05.27 |
申请号 |
WO1998CA01050 |
申请日期 |
1998.11.12 |
申请人 |
COSMA INTERNATIONAL INC. |
发明人 |
GASS, BRUNO |
分类号 |
B21D35/00;B21D47/00;B23K11/00;B23K11/14;B23K33/00;B62D21/09;(IPC1-7):B62D21/09;B21D51/10 |
主分类号 |
B21D35/00 |
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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