| 摘要 |
<p>Two heavy copper workpieces are joined by welding without filler metal. The workpieces (14, 16) each have a boss (15, 17), which bosses are placed facing each other and in contact with each other before installing, on the welding press (10), the workpieces (14, 16) to be assembled. The weld is produced by passing a very high intensity current for a short period of the order of a tenth of a second under a high pressure. The welding operation prevents any annealing of the copper.
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