The requirements for the tool head part of welding turning tools are

The requirements for the welding turning tool head part are: the welding head part should be flat. It is best to use a milling machine to mill it. Do not directly bake the tool head during welding. Use the tool holder to heat it. When the knife stem is roasted until the orange-red knife tip is roasted red, it can be welded. During welding, the copper water must fill the gap between the knife head and the knife rod. After welding, the knife rod must be heated with a warm fire and buried in furnace ashes. With natural cooling, the life of such a knife will be longer.