The most inseparable thing in people's daily life is various cutting tools. They need to be used for cooking, cutting, and waiting.So how much do you know about the material requirements for cutting tools wholesale ?
The first basic characteristic that cutting tool materials should have is high hardness. The hardness of the tool material must be higher than the hardness of the workpiece material, and its normal temperature hardness must be higher than 60HRC. Sufficient strength and toughness. In the cutting process, the cutting part of the tool must withstand greater cutting force, and sometimes must withstand impact and vibration, so it must have sufficient strength and toughness. The second is that abrasion resistance must be good. The higher the hardness of the material, the better the wear resistance, but the wear resistance of the tool is also related to the nature, number, size, and distribution of the hard spots in the tool material structure.The third is good heat resistance. High temperatures are generated during the cutting process. Hot hardness is the ability of a tool to maintain high hardness at high temperatures. It is expressed in terms of the highest temperature, which enables the tool material to maintain the hardness required for work.
Cemented carbide is a powder metallurgy product, which is made by sintering high-hardness refractory metal carbide (WC, TiC, etc.) powder and binder cobalt (Co). The hardness of the cemented carbide at room temperature is 8995HRA, the wear resistance is good, the heat resistance is 8501000, and the cutting speed is 220300m/min. However, the bending strength and impact toughness of cemented carbide is much lower than that of high-speed steel, and the cutting edge is not easy. Grind as sharp as a high-speed steel tool. When manufacturing tools with complex shapes, it is technically much more difficult than high-speed steel. These also greatly improve and enhance the overall performance of cemented carbide tool materials.
In addition to cutting tools, we certainly cannot live without threading tools in our daily lives, but we use fewer of these tools, and most of them are used by professionals. Of course, some people can try, but they are not as skilled as professionals.