How to use a car knife properly in machine processing?
Choose the right knife according to the material. Choose the right knife according to the shape; Choose the right knife according to the amount of cut. Select the appropriate knife according to the accuracy of the machining.
Using a lathe tool, it is to determine the amount of cutting, you can use the Internet, or you can check the general machine manual
1) cold hard. It has a high hardness in normal temperature, which is the wearability of the tool. 2) red and hard. The hardness required for cutting at high temperature is called "red hot hardness". 3) resilience. The cutting part of the lathe is subjected to the strength and hardness of vibration and shock load.
This is a fine-grained tungsten carbide drill with a small amount of carbon niobium, known as YA, which is used in YA6. It is suitable for processing of stainless steel, heat resistant steel, hard cast iron, iron alloy, hard plastic, glass and ceramic. When choosing a hard alloy, it should be considered according to the characteristics of the hard alloy itself, the material of processing and the cutting condition. In addition to the cutting materials of high speed and hard alloy, there are also carbon tool steel, alloy tool steels, diamond, ceramics and so on. The cutting performance of carbon tool steel and alloy tool steel is poor, while diamond price is high, all three are less used. Due to the ceramic material is higher than red hardness of cemented carbide, good abrasion resistance, low prices, is becoming a widely used tool material, but due to the material brittle, afraid of shock, sharpening is difficult, so is limited by a certain while in use. Table 4-4 is the characteristic of common vehicle tool and its cutting cost.
