高速重ねシーム溶接の接合部形成現象の基礎的研究(第 6 報) : 接合部の形成現象からみた溶接条件の意義

概要

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Significances of welding current, speed and electrode force are considered introducing basic parameters for weld formation. These are summarized as follows. (1) The type of weld formation can be devided into two types according to welding speed. (2) In high speed seam welding, the nugget enlarges both by the increases of current density δ_s, δ_i and by the increase of heating time T_s, T_i. (3) The weldable current range ΔI_a decreases with increased welding speed because decrements of δ_s and δ_i against the increase of current enlarge and the contacting time T_s decreases. (4) The welding current to form the nugget increases with increased electrode force because the areas of current path A_s, A_i increase and the coefficient of heat conduction h increases. (5) The weldable current range ΔI_a at the same welding speed increases with increased electrode force because the contact lengths between electrodes and plates L_s increase resulting in the increase of the cooling time T_s.
社団法人溶接学会の論文
1978-10-05