TWI Industrial Member Report Summary 105/1979
By C F G Baxter
Commercially available equipment has been used to investigate the potential advantages and limitations which may be gained by the use of various electrode weave patterns for the production of vertical-up fillet welds using mechanised CO2 'dip transfer' arc welding. A simple lateral weave, generated using linear motion, triangular and pendular weave patterns were studied. The results of these welding trials were compared with previously obtained data for a simple lateral weave but in this case generated using simple harmonic motion. It has been observed that the range of welding conditions under which sound single-pass welds could be produced was determined by both the weave parameters and the weave pattern type. With regard to the latter, the simple lateral weave was considered preferable, because of its simplicity and ease of use, although the more complex triangular weave pattern had the advantageous feature of producing flatter weld beads.