Hybrid Laser Welding of 0.2% Be-Cu Alloy for Ultra-High Vacuum Systems
Year: 2025
Type: article
Abstract: We investigated the fundamental characteristics of welding 0.2 wt% Be-Cu (BeCu) using a Blue＋IR hybrid laser. Butt welding of BeCu plates, welding of a one-sided rotating nipple (ICF70)-which cannot be fabricated by conventional machining-and dissimilar material welding between steel use stainless (SUS) and BeCu were performed. These trials successfully demonstrated the feasibility of fabricating vacuum components that were previously considered unmanufacturable. Furthermore, tensile tests of the SUS/BeCu dissimilar welded joints revealed strengths exceeding that of SUS itself, confirming both the viability and effectiveness of this welding technique.
Source: Vacuum and Surface Science
DOI: 10.1380/vss.68.629
Authors: Takao NAKAMURA, Masanao SASAKI, Kazunari OKAHASHI, Shinsuke KISIKAWA, Masahide KUROIWA
Institution: Mie University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7104504628