| 摘要 |
A tool for dressing copper spot welding electrode tips to a desired configuration comprises a disc with opposed concave faces formed at their centers in the desired configuration of the tips and adapted to be rotatably driven by a power tool. The dressing surfaces are uninterrupted surfaces of revolution and, therefore, contain no cutting edges. In operation, the electrode tips while mounted on a welding machine are clamped against a rotating dressing tool with normal welding pressure, so that as a result of the frictional engagement of the tool with the tip, the metal flows into conformity with the tool surface. Thus, no significant amount of metal is removed from the welding tip.
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