The cutting fluid used on the turning and milling composite machine tool can be initially selected by customers based on the processing situation of the enterprise. 2-3 cutting fluids with good comprehensive performance can be selected, and after practical trial, the cutting fluid with suitable performance and price can be determined to meet the processing requirements. The performance of the workpiece material is important for the selection of cutting fluid. Now, let’s take a look at how to choose the lubricating cutting fluid for the use of turning and milling composite machine tools.

1. Cutting fluid should have no irritating odor and contain no harmful additives to the human body, ensuring the safety of users.

2. The cutting fluid should meet the needs of equipment lubrication and protection management, that is, the cutting fluid should not corrode the metal components of the machine tool, do not harm the sealing parts and paint of the machine tool, and will not leave hard adhesive deposits on the machine tool guide rail, ensuring the safety and normal operation of the equipment.

3. The cutting fluid of the turning and milling composite machine tool should meet the rust prevention requirements between the workpiece processes and not rust the workpiece. When processing copper alloys, sulfur-containing cutting fluids should not be used. When processing aluminum alloys, a cutting fluid with a neutral pH value should be selected.

4. Cutting fluid should have excellent lubricity and cleaning function. Select a cutting fluid with a high maximum non biting load value and low surface tension, and determine it through cutting fluid experiments.

5. Cutting fluid should have a long service life, which is particularly important for turning and milling composite machine tools.

6. The cutting fluid of the turning and milling composite machine tool should be adapted to multiple processing methods and workpiece materials as much as possible.

7. Cutting fluid should have low pollution and have waste liquid treatment methods.

8. Cutting fluid should be inexpensive and easy to manufacture.

In summary, the selection principle of cutting fluid for turning and milling composite machine tools must meet the requirements of cutting performance and usage performance, that is, it should have good lubrication, cooling, rust prevention and cleaning performance, meet the process requirements during the machining process, reduce tool wear, reduce machining surface roughness, reduce power consumption, and improve production efficiency. At the same time, the stability of use should be considered.