Horizontal welding method

Abstract

The invention discloses a horizontal welding method, which is used for carrying out horizontal welding on an end bevel formed between upper base metal and lower base metal and comprises the steps that a welding gun swings up and down along a preset track along the direction of surfaces of the upper base metal and the lower base metal, and advances in a reciprocating manner along the extending direction of the end bevel, so as to finish the horizontal welding of the end bevel. According to the horizontal welding method, through the arrangement of a welding preset rail, the retracement reciprocating of welding is realized, the stability of the welding is guaranteed, and a welding part which has no undercut, is excellent in weld penetration and is sound can be obtained.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a welding method for a transverse bead. Background technique [0002] Usually, the lateral position single-side welding method is for the welding groove formed by the upper base metal and the lower base metal, and the copper strap or solid ceramic material is replaced on the inner side to fix it, and the base metal and the inner lap material are surrounded. Welding is performed by feeding the electrode while supplying the shielding gas in the groove. The position of horizontal welding tends to cause the weld metal to sag due to gravity, so welding defects such as undercut or poor penetration are likely to occur on the weld bead. [0003] Under normal circumstances, a zigzag welding trajectory is adopted for the welding of the groove, but this method is often not welded firmly and is prone to false welding. For manual welding, under normal circumstances, the welder will perform...

AI Technical Summary

Problems solved by technology

But this situation is prone to undercut and the welding is unstable

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