鋼のCO2アークスポット溶接(第2報)
アーク熱による母板の動的変形挙動
1983 年 1 巻 1 号 p. 90-94
詳細
1983 年 1 巻 1 号 p. 90-94
The dynamic deformation occurring on the welded plate during arc spot welding was investigated.
As a result, it was observed that the welded plate deformed to the plus side of the plate (welding arc side) at about the same time as arc ignition and the deformation reached a maximum soon after. When the deformation reached the maximum, it reversed itself, reached, zero, and then proceeded towards a maximum at the minus side (back side) of the plate.
In terms of arc time, in mild steel (plate thickness<8mm), the deformation toward the plus side reached its maximum value in less than 50% of arc time and returned to zero before the arc was extinguished (i.e. within the arc time).
However, these characteristics changed with the material welded, as has been shown by similar experiments on stainless steel and aluminium alloy plate.
