アルミニウム合金無処理板点溶接法の超音波利用の研究(第2報)
1967 年 36 巻 1 号 p. 35-43
詳細
1967 年 36 巻 1 号 p. 35-43
It was previously reported that the breaking of oxide film on the surface of sheets in Direct spot welding of Al alloy thick sheets should be done by application of ultrasonic vibration.
For successful application of this method, it is necessary to make clear the relation between applicable condition of this method and spot welding procedure, and to confirm that spot weld quality is equal, to that of chemical or mechanical pretreated one.
This report deals with the influence of various conditions such as material, thickness, or the cleaning of sheets to be spot welded, design factor of spot spacing, the arrangement and shape of vibrating tip, etc., upon the breaking of oxide film. In addition, comparative testing of mechanical or metallurgical property, corrosion resistance etc. of spot weld was carried out.
As the result, it has been clarified that this method can be practically applied and the quality of spot weld is as good as that of pretreated one.
