How can the blade of a lathe be welded to a knife?
Generally it is soldering welding, the welding temperature controls the blade not annealing, the strength can meet the requirement
That is to say, even if is two pieces of hard alloy cannot be welded together, so use brazing, but copper brazing is one of the best in the brazing welding strength, it is better than that of lead, tin welding. But there are also toxic gases in the process, which are usually welded in a glass box with a smoke system, and the two hands are inserted through two round holes
With copper brazing, this kind of welding is suitable for the welding of different kinds of materials, and the cutting head is usually hard alloy, and the blade is iron. Common welding, including argon arc welding, plasma welding would not the two kinds of welding materials can be welded together, because the two materials of different thermal expansion rate, cooling contraction size is also different, melting point is different also, unable to fusion, and to be honest carbide weldability negative,
