发明名称 |
RESISTANCE WELDING FASTENER, APPARATUS AND METHODS FOR JOINING SIMILAR AND DISSIMILAR MATERIALS |
摘要 |
An apparatus and method for fastening layers of non-ferrous alloys, like aluminum, magnesium and copper utilizes a steel fastener and a spot welding machine. The fastener and metals are stacked and the heat from the welder's electric current softens the lower melting point aluminum allowing the fastener to penetrate the aluminum. A weld zone between the fastener and the various layers creates an internal weld. The fastener has a rough shaft that is coated by the molten weld zone and is hard to withdraw on solidification. Layers of non-conductive materials like plastics and ceramics may also be affixed to a conductive layer using a fastener made from a compatible material that extends through a pilot hole and welds to or penetrates a conductive layer. The fastener may have projections that initially reduce contact area with the stack. |
申请公布号 |
WO2016100179(A1) |
申请公布日期 |
2016.06.23 |
申请号 |
WO2015US65491 |
申请日期 |
2015.12.14 |
申请人 |
ALCOA INC. |
发明人 |
SPINELLA, DONALD J.;BERGSTROM, DANIEL |
分类号 |
B23K11/14 |
主分类号 |
B23K11/14 |
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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