Why is it that the knives are prone to crack when working with the parts?
Groove shape and tool rod welding surface inconsistency or large difference, to form a closed or semi-closed trough, easy to cause welding surface and welding layer is too big, too much due to thermal expansion after shrinkage rate, also easy to cause too much stress in the blade welding, forming split;
The reason that the knives are prone to cracks in the machining parts: 1, turning the blade with large difference between two components of the thermal expansion coefficient, and alloy heat conduction performance of the blade material is poor, if rapid heating will produce a large internal stress during welding, prompting the blade on the thermal stress of the welding layer of too big cause the blades split;
Blade and slot contact surface is not smooth, if there is a black pockmark, local inequality, make welding can't form a plane combination, causing uneven distribution of solder, such not only affect weld strength and cause stress concentration, caused the blade fracture. Knowledge extension: A lathe tool is used for turning the cutting part of a cutting tool. A lathe tool is one of the most widely used knives in machining. Working part of the lathe tool is a portion of production and the processing chip, including the blade, the structure of the chip broken broken or volume approach, chip removal, or should the storage space of the chip, cutting fluid channels such as structural elements.
