KR960031045A - Lateral welding method and apparatus - Google Patents

Abstract

(purpose)

In the transverse gas-sealed arc welding, a good welded portion without any undercut is formed and a good welded portion free from dissolution defects is obtained and the welding efficiency is improved.

(Configuration)

In the gas shielded arc welding in the transverse posture, the solid backing material is brought into contact with the back side of the improvement made by the upper and lower base materials, and the welding current is repeatedly welded The welded torch is pivoted in the thickness direction of the upper and lower base materials by bringing the remaining improvement parts into contact with the slidable copper support parts on the front side and finishing by the electrosurgical gas welding method do.

Description

Lateral welding method and apparatus

Since this is a trivial issue, I did not include the contents of the text.

1 (a) is a cross-sectional view showing a first-layer bead by a current-change welding method, (b) is a longitudinal sectional view,

Fig. 2 is an improved cross-sectional view showing a finished bead by an electro-gas welding method, wherein Fig. 2 (a) is a cross-sectional view, Fig. 2

FIG. 3 is a cross-sectional view illustrating a front end portion of a welding torch used in an embodiment of the present invention, wherein half of the tube remains an outer appearance, (B) is a cross-sectional view showing the welding torch tip end portion when performing the electro-gas welding method; Fig.

FIG. 4 is a perspective view illustrating the appearance of a sliding copper support 9 used in an embodiment of the present invention. FIG.

FIG. 5 is a flow chart illustrating knitting of an electrical element of an embodiment of the inventive apparatus. FIG.

Claims (3)

In the gas shielded arc welding in the transverse posture, the solid backing material is brought into contact with the back side of the improvement formed by the upper and lower base materials, and the welding current is repeatedly increased The welded torch is shaken by the plate thickness method of the upper and lower base materials by forming the beads first by welding by the change welding method and bringing the remaining improvement parts into contact with the slidable copper support parts on the surface side and finishing by the electrosurgical gas welding method Wherein the lateral welding method is characterized by: The welding method according to claim 1, further comprising: a first welding step of forming a first bead by a current change welding method in which a welding current is periodically repeatedly welded with a large current and a small current; Wherein the welding is performed using the same wire feeder and the same welding torch. A switching timer for periodically and repeatedly switching the welding current to a large current and a small current, a switch for switching the current change welding method and the electro-gas welding method, a detector for detecting a welding current, a reference current setting device, A circuit for controlling the welding speed so as to keep the distance between the welding tip and the molten metal free surface substantially constant by receiving the output of the comparator and a circuit for controlling the welding torch in the thickness direction of the base plate in the direction substantially perpendicular to the welding line, A detector for detecting an improvement edge of at least one of the upper base material and the lower base material, and an improved imitation control circuit for improving and controlling the position of the welding torch with respect to the improved edge by the output of the detector And a lateral direction welding device. ※ Note: It is disclosed by the contents of the first application.