Originally Posted by
merlin55
Wont all the heat weaken the tubing? I thought TIG is OK since only a little of the tubing is heated, and brazed frames have the lug to add some strength, but Braze over TIG would seems to be sketchy
Filet brazing was developed when shortages of materials in wartime made the building of lugged frames difficult and it was discovered that this construction method was just as good although more time consuming than building a lugged frame due to close mitering that is required in the respective joints.