間隙を設けて重ねたアルミニウムおよび銅薄板を，絶縁された平板状ワンターンコイル上に固定する.コイルには，電流が集中して流れる細長い部分が2並列，接近して存在する.コンデンサ電源からコイルへ放電大電流を流す.両薄板には高密度磁束が交差して渦電流が流れ，両薄板は加熱される.下側のアルミニウム薄板は，働く電磁力で上側の銅薄板へ衝突する.両薄板は，コイルの細長い部分に沿って2並列に圧接される.コンデンサ電源の充電ェネルギーを約2 k Jに選び，厚さ0.2または0.3mmの両薄板を長さ25〜100mmにわたり2並列に圧接できた.この電磁圧接による並列シーム溶接法の原理，方法および実験結果を報告する.%This paper describes parallel seam welding technique of aluminum and copper sheets by magnetic pulse welding method and its experimental results. An impulse current from a capacitor bank passes through a flat one-turn coil while concentrating on two parallel along the narrow part of the coil. A magnetic flux is suddenly generated around the narrow part. Eddy currents are induced in the sheets which are overlapped with a gap on the narrow part. The sheets (0.2 or 0.3mm thick) can be welded to two parallel both by the Joule heat generated in them and by the collision effect with electromagnetic force applied to them. The bank energy required for the parallel seam welding of 25-100mm long is about 2kJ.
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