1. 100% weld successful means : A good perfect weld was made every time without any failed welds.
1.1 What is the tensile strength after welded,requirement should not lower than 14.27 kgs./mm.? Pls advise.
1.2 The method of welding is basically a 'cold' process and therefore only work hardening of the materials occurs at the weld site, generally a 'cold' weld always has a tensile strength higher than the rods joined. We may be able to get the welded rod tensile tested, if possible we will let the know the actual tensile recorded, I should be able to advise whether it is possible to do this test tomorrow.
1.3 How many times you weld in order to get tensile strength that the cust require ? One; 'cold' welds generally always have a tensile strength greater than the original rod.
2. Each upset required an estimated 10% more load than to weld than ø8 Cu. Pls give more details explanation. We are not clear. We initially 'estimated' the alloy would need approx. 10% additional load to make a weld than to weld ø8 copper; this would have put the alloy towards the top of the welding range for our Autoweld 813 machine. By employing a new die design, the load was reduced significantly, compatible to the load required for ø8 copper.
3. Model PWM version EP 500 is compare to which of your model AW 813 or AW 1320? That will be easy for us to judge what is the price level that the cust will compare between us & PWM.
The EP 500 is comparable with our Autoweld 1320 welder; the EP 500 welds up to ø12.5 Cu and our Autoweld 1320 welds up to ø13 Cu.
I trust that the above helps and I will be in touch again tomorrow regarding whether or not it is possible to do a tensile test.