According to what method the machine parts processing plant uses cutting fluid

1. Selection according to tool material

(1) Rough machining. High-speed steel tools have poor heat resistance. The main function of the cutting fluid during roughing is to reduce the cutting temperature. Emulsion or aqueous solution should be selected.

(2) Finishing. One of the main tasks during finishing is to improve the quality of the processed surface. Extreme lubricating cutting oil with good lubricating properties or high-concentration extreme-pressure emulsion cemented carbide tools should be selected. Because of the good heat resistance, cutting fluids are generally not needed. Low-concentration emulsion or aqueous solution can be used, but it must be continuously and fully supplied. 2. Plastic materials such as steel are selected according to the material of the workpiece. Cutting fluid is used to process brittle materials such as cast iron. Generally, no cutting fluid is required. However, in order to obtain a small roughness value when finishing cast iron and nonferrous metals such as copper and aluminum and their alloys, an emulsion of 10% to 20% can be used, and kerosene can also be used when processing cast iron. For hard-to-machine materials, choose extreme pressure cutting oil or extreme pressure emulsification. 3. According to the processing method, choose cutting in semi-closed state such as drilling, reaming, tapping, broaching, etc. The working conditions of the tool are poor, and extreme pressure emulsification is generally used. Liquid or extreme pressure cutting oil is used as cutting fluid. In addition to cooling and lubricating the cutting area, it also flushes the chips. The temperature in the grinding area is very high during the grinding process, and the fine abrasive debris produced will destroy the quality of the grinding surface. , The cutting fluid is required to have good cooling performance, cleaning performance and-

For certain anti-rust properties, emulsions are commonly used.