필러와이어의 아크쪽 비표면적에 의한 TIG용접의 용착금속 용융효율 향상 방법

Abstract

Future growth industries in the world as a nuclear power plant industry, largely been focused on the importance of welding technology has been proposed. TIG welding in all materials because of the advantage of being able to get superior quality non-ferrous alloys consisting of piping, pressure vessels are widely used in overlay welding, but the problem is low productivity. Hot-Wire TIG Welding is Filler Wire heated to near the melting temperature by supplying the molten pool can increase the melting rate. However, it is difficult to be popularly used because the device is expensive and difficult to apply in some parts. In this study, to improve melting efficiency of deposited metal by developing a large cross section area and high specific surface area to arc side with a Wire compared with traditional Cold-Wire.

Key Words : TIG Welding, Filler Wire, Deposited Metal, Melting Efficiency, Specific Surface Area, Melting Rate