How to make the quality of the welding tool?
The structure of welded cutting tool should be sufficiently rigid Sufficient rigidity is guaranteed by the size of the maximum allowable dimensions and the use of high strength steel and heat treatment. Carbide blades should be fixed firmly Cemented carbide welding blade should have enough degree of fixation, it is to rely on groove and welding quality to guarantee, therefore, according to the blade shape and the cutting tool geometry parameter choice blade groove shape.
Requirement for welding welding flux Welding titanium low cobalt fine alloy and high alloy welding the long, thin blade, in order to reduce welding stress, and suggest the thickness of 0.2-0.2 mm wafer or mesh aperture 2 -- 3 mm spacer mesh compensation on welding. Due to large carbide insert brittleness, the crack formation sensitivity is strong, so the cutting tool in the process of grinding should avoid overheating or quenching, as well as choosing appropriate particle size of grinding wheel and reasonable grinding process, to avoid grinding cracks, affect the service life of the cutting tool. When the tool is installed, the length of the tool holder should be as small as possible, otherwise it can cause the tool to vibrate and damage the alloy plate Cutting tool used to achieve normal grinding blunt, heavy grinding, must be conducted after resharpening of knives, must use oil stone to grinding blade and blade edge, which will improve the service life of cutter and the safety and reliability
Before the blade welding to the tool holder need to blade, tool rod to make the necessary inspection, first check the blade bearing surface can't be serious bending. Hard alloy welding surface must not have serious carburizing layer, at the same time should also will carbide blade surface and cutter bar set of dirt to clean, to ensure the welding. Requirement of welding welding material In order to guarantee the welding strength, should choose the right solder. In the process of welding, shall ensure that the good wettability and liquidity, and to eliminate air bubbles, make a good contact with welding and alloy welding surface, shape welding phenomenon.
