高速重ねシーム溶接の接合部形成現象の基礎的研究(第 2 報) : 電極形状および板厚が溶接現象に及ぼす影響

概要

論文の詳細を見る
The influences of shape and dimensions of electrodes on the weldable current range and effects of plate thickness on welding phenomena are studied. The results obtained are as follows. Weldable current range ΔI_a/I_<av> increases with increased ratio of electrode face width W as against the plate thickness t and with increased P/W. The proper face width and electrode force for various thicknesses can be dicided by the equation W/t=6 and P/W=130kg/mm. Improvement of ΔI_a/I_<av> can be achieved by R type electrodes especially in case of thicker plate thickness as well as efficient electrode force. ΔI_a/I_<av> is affected little by the outer diameter of electrode over a range from 280 to 400mm in diameter. ΔI_a/I_<av> for given welding speed decreases as plate thickness increasees except for welding speed in which the upper limit of welding current is restricted by electrode sticking. The type of weld formation process of other plate thickness can also divided into two types with welding speed. The transition welding speed becomes lower for thicker plate and the melting efficiency is saturated or becomes the maximum value at the transition welding speed.
社団法人溶接学会の論文
1977-09-05