METHOD OF PRODUCING WELDING PART BETWEEN LARGE- SIZED METAL SHEETS AND OBJECT ASSEMBLED BY SAID METHOD

摘要

PURPOSE: To provide a method for simplifying edge welding work of large size metal plates and improving welding quality, and to provide a body of welded assembly of large size metal plates thereby manufactured rapidly at a low cost. CONSTITUTION: By form milling of edges of metal plates 1 to be welded, a welding groove 2 is formed leaving a root part where confronting plates 1 abuts, and, in order to hold the plate 1 at an exact relative position in the vicinity of the groove 2, by means of a welding method which makes a fixed suction device including suction grooves 6, seal strips 7, suction ducts 8, and a vacuum pump 9 be engaged with a comprehensive bed 19, bodies of large size metal plates such as hull structural part or others are welded altogether.