| 摘要 |
A cold pressure-welding apparatus has a pressure-welding load detector and a displacement detector for detecting the displacement of pressure-welding parts which are mounted on a cold pressure-welding apparatus main body; and an arithmetic operation control circuit which receives output signals from the detectors to detect yield points on a load-displacement curve, calculates an optimum load for optimally performing cold pressure-welding on the basis of a yield load at a second yield point, and outputs to the cold pressure-welding apparatus main body a signal for stopping cold pressure-welding when an actual pressure-welding load reaches the optimum load.
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