| 摘要 |
PROBLEM TO BE SOLVED: To securely and surely join spectacle parts made of an Ni-Ti alloy and another spectacle parts consisting of a Ti material. SOLUTION: This joining method consists in inserting the spectacle parts 6 made of the Ni-Ti alloy into fitting holes 3 disposed at joining pieces 2 made of Ti, caulking and coupling these parts and joining the joining pieces 2 to another spectacle parts 7 made of the Ti material by resistance welding or resistance brazing. The joint parts 5 of the joining pieces 2 are formed in the positions apart from the fitting and insertion parts of the spectacle parts 6 made of the Ni-Ti alloy.
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