フランジを用いない全自動溶接接合ビームダクトのためのアルミニウム合金両端厚肉一体構造ベローズ

抄録

Aluminum alloy seamless corrugated bellows are produced by hydraulic forming of seamless tube. Welding between the bellows and the flange or chamber becomes difficult especially with a thickness below 1 mm.
The thickness of the corrugated part was reduced to 0.3 mm while the welding edge parts were given a thickness of 24 mm. This contributes to both getting sound weld and better elastic performance of the bellows. Life time of the aluminum super alloy bellows is nearly the same as that of the stainless steel.