2008 Volume 46 Issue 4 Pages 157-166
Programmed TIG welding method based on welder's senses is applicable to the automatic welding of the aluminum alloy for which the heat-input control is indispensable. However, it is necessary to set the aimpointofelectrode,thelengthofweldingarcandtheangleofweldingtorchwithhighaccuracyinorder to obtain the superior welding results. For this reason, it is difficult to apply the programmed TIG welding method when welding is performed on the joint needed complicated torch operation. This report proposes the welding method that the welder cooperates with the programmed TIG welding method to expand its applicable scope and refers to the cruciform joint welding of aluminum alloy pipe and the butt welding of thejoint composed of aluminum alloy sheet and Hot-dip galvanized steel sheet. As a result, the welder conducted the operation method of the electrode and filler metal, which had made it possible to carry out the programmed TIG welding for the above two weld joints and to provide proper weld bead with high reproducibility.
