1, We have an AW813 test die which is specially modified for welding hard alloys and we have welded the material successfully with this die. Each upset required an estimated 10% more load than to weld than ø8 Cu.
2, Material welded without problems on the AW1320. See die note 3 for further details.
3, When welding rod material of this nature and with size and geometry variations damage to the die set can easily occur, therefore die set life cannot be guaranteed. Customer would need to carefully follow BWE Ltd.’s special Instructions when Welding Tough Alloys' to ensure maximum die protection and die life (copy of which is attached for your reference)
Conclusions;
Ideally the AW1320 is the machine for duty (excluding die warranty) and would be the recommended choice.
However, if the weld load can be reduced a little by modifying die design then an AW 813 (excluding die warranty) could be considered? Note; If the customer is making an exceptional number of welds then a AW1320 should be offered.