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Selected according to the workpiece material, tool material selection
1) Roughing: cutting a large amount, a large amount of cutting heat during cutting, tool wear easily lead to lead, especially high-speed steel tool wear. It should reduce the cutting fluid temperature should be selected to cool role-based cutting fluid. Such as emulsion or an aqueous solution. Carbide cutting tools heat resistance, generally do not have to if you use continuous casting, not intermittent, so as not to cause uneven cooling tool cracks.
2) Finishing: cutting fluid lubrication main role is to improve the workpiece machining accuracy and reduce the surface roughness.
3) grinding: grinding when the temperature is high, then a large amount of finely divided abrasive dust, affect the processing quality, so the cutting fluid used for grinding and cleaning should be better cooling effect, and a certain degree of lubrication and rust effect. Grinding is generally used in emulsion or extreme pressure cutting oil. Select the processing method according to the higher cutting speed roughing (for example: turning, milling), requires cutting fluid has good cooling performance and cleaning performance, this time should be used in water-based cutting fluids, and a low concentration emulsion. In some high-strength precision machining (such as: tapping, deep hole drilling, deep hole boring, etc.), then need cutting fluid has good lubricity, extreme pressure cutting oil can be used or a high concentration emulsion. Cutting fluid machine according to species specified in the instructions, if there is no special reason to do not easily change the type of cutting fluid when asked to choose according to the general filling machine cutting fluid, so as to avoid damage to the machine. Depending on the security requirements of selected oil based cutting fluids, there should be awareness of fire safety, in addition to the need to follow the Safety and Health Act, the Fire Services Act, sewage law and other regulations.

The main method of filling the coolant circulation pump
1 using the liquid supply by the pump through pipelines and other supply nozzle cutting fluid to the cutting zone, like "shower." In this case the cutting fluid pressure is low. Area not easily accessible cutting fluid cutting, cooling and cleaning effect is relatively poor. Cutting fluid used by the drip pan back into the tank or tanks, a wide variety of machine tools.
2 single-stage low-pressure centrifugal pump (pump) cutting fluid at a higher pressure (P = 0.35 ~ 3MPa) or via a slit-type nozzle orifice strikes the cutting area, the cutting fluid at the nozzle outlet flow rate v = 20 ~ 60m / S. Cooling, and cleaning results were better. Commonly used in holes deep hole drilling, broaching and other high-pressure cooling, Lee and chip suitable for machining difficult materials, deep hole drilling, broaching inner surfaces, high-speed grinding.
3 spray liquid supply method so that the cutting fluid atomizing a mixed fluid (compressed air P = 0.3 ~ 0.5MPa), by cutting away from the area close to the nozzle to the cutting area, the flow rate of up to 200 ~ 300m / s. Because of the mixed fluid from the high-speed spray nozzle to inflate the endothermic heat of vaporization and fog beads, the cooling effect is good, less consumption of cutting fluid. Suitable for difficult materials turning, milling, tapping, drilling and so on.
4 for the liquid by hand with oiler, pen, brush and other liquid supply in a single piece, small batch production drilling, reaming tapping convenient, simple, applied with a brush with paste-cutting machining fluid convenient, easy to link to the article: