| 摘要 |
PURPOSE:To obtain a welded joint which is excellent in mechanical characteristics and has high quality and high reliability, by inserting a nickel alloy between a copper alloy and stainless steel, and welding them by use of electronic beam welding, etc. CONSTITUTION:Between a copper alloy 1 and stainless steel 2, a nickel alloy 3 which is apt to fit with both the copper alloy and the stainless steel is inserted, and electronic beam welding is executed. The reason why the electronic beam welding is adopted is because heat is concentrated well by utilizing energy of an electron, and a bead of narrow width and deep penetration is obtained, and it is suitable for simultaneously melting and joining such materials whose physical characteristics are remarkably different as said copper alloy and stainless steel. Also, the nickel alloy is 0.1-0.5mm. wide. |
