What are the tools, drills, and any of the machine tools made of?
According to the material: steel knife (carbon tool steel, alloy) alloy knife, ceramic knife, knife and other boron nitride.In the form of the structure: Forged knife knife, knife clip, welding machine.According to the use of points: cylindrical knife, round knife, thread knife, knife, left and right knife, arc knife
High speed steel means containing more tungsten, chromium and aluminum alloy elements such as the tower of metalwork of steel, commonly known as steel or stainless steel.The machine is characterized by simple manufacture; high hardness (63 ~ 66HRC), wear resistance and heat resistance (about 600 - 660 C); have sufficient strength and toughness; have good craft; can bear greater impact; tool manufacturing complex shape, such as special lathe tool, milling cutter and drill, broach and gear cutter; but notIt can be used in high speed cutting. Grades and properties of commonly used high speed steel.The hardness of high speed steel after quenching is HRC63 ~ 67, and the red hard temperature is 550 ~ 600 DEG C, and the allowable cutting speed is 25 ~ 30m/min.The bending strength and impact toughness of high speed steel is high, can be cast, forging, welding, heat treatment and machining, has good grinding performance, the grinding quality is high, so it is used to manufacture complex shape of tools, such as drill, reamer, milling cutter, and also used for low speed machining tool and forming turning tool.Commonly used high-speed steel grades are W18Cr4V and W6Mo5Cr4V2 two.
(1) tungsten cobalt carbide, whose code name is YG, consists of CO and wc. Commonly used brand machine tools, bending strong, not afraid of impact, but hardness and heat resistanceIts characteristics are: good toughness, high bending strength, not afraid of impact, but low hardness and heat resistance. Applicable to the processing of cast iron, bronze and other brittle materialsThe commonly used grades are YG3, YG6, YG8 and so on. The latter figures indicate the percentage of cobalt content. The higher the cobalt content, the better the performance of the impact resistance. Therefore, YG8 is often used in rough machining, and YG6 and YG3 are often used in semi finishing and finishing.(2) tungsten titanium carbide, whose code name is YT, consists of WC (tungsten carbide), Tic (Tan Huatai) and CO (cobalt). Commonly used grades are YTl5, YT30 and so on. Its characteristics are: hardness of 89 ~ 93HRA, heat-resistant temperature of 800~1000 degrees; wear resistance and oxidation resistance are higher; but flexural strength and impact toughness are lower. Suitable for processing carbon steel, alloy steel and other plastic materials.Join titanium carbide can increase the wear resistance of the alloy, alloy and plastic materials can improve the bonding temperature, reduce tool wear, can also increase the hardness; but more brittle, poor toughness, performance under impact is also poor, generally used for processing plastic materials. Common brands are YT5, YT15, YT30, digital is behind the percentage content of titanium carbide, titanium carbide content is higher, the red rigid; but the corresponding cobalt content is lower, the worse the more toughness, impact resistance, so YT5 is commonly used in rough machining, YT15 and YT30 are commonly used in semi finishing and finishing processing.
