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At present, the MQL micro-lubrication technology has been used in domestic auto parts manufacturing equipment, such as crankshaft oil hole special machine, balance machine, main shaft outer round car, connecting rod and gear machine tool. While the micro-lubrication technology is widely recognized by machine tool manufacturers and end users, it also faces the problem of how to make the micro-lubrication technology fully play its role in improving the processing efficiency. Need to discuss the machine design, processing technology, lubrication mechanism and other aspects.
The idea of ​​using micro-lubrication technology to reduce processing costs is to optimize the processing route when the machining conditions are the same:
(1)
Machining program and machining parameters: cutting tool path, feed amount, depth of cut, cutting speed.
(2) Cutting tools: geometry, materials, coating technology.
(3)
Fixing system: clamping method and efficiency, clamping position, clamping accuracy, clamping force.
(4) Material to be processed: blank state, material properties.
(5)
Machine: Machine speed.
To process any workpiece, it is necessary to fully consider how to reduce the processing cost. Therefore, according to the method of optimizing the route of the machining process, firstly, from the aspects of easy realization, according to the processing procedure and processing parameters, cutting tools, clamping system, material to be processed, machine tool sequence Adjust optimization.
Economic benefits:
1.
Reduce processing costs: MQL lubrication technology is a full-lubrication lubrication technology for lubricants, so there is no waste disposal cost, including cutting fluid procurement, warehousing, transportation and disposal costs.
2.
Overall savings in cooling pump power consumption when cutting fluid is cooled.
3. After the process optimization is completed, the tool life can be expected to be extended.
4.
Subsequent cleaning/cleaning of the workpiece can be dispensed with, resulting in savings
5. Dry iron filings can be recycled as recyclables
6.
The consumption is about 1/30 of the wet cut, and the cost is about 54% of the wet cut.
7.
Reduced energy consumption, average energy saving 2.2kw / machine tool (compared with traditional cutting fluid processing)
Environmental benefits:
(1) Protection of the environment: The processing environment has been greatly improved. The inhalable particles in the workshop have met the standards. The operators have no occupational disease risks. Plant synthetic lubricants are used. No cutting waste oil and waste liquid are produced, and the environment will not be polluted.
(2) Clean operating environment: Because MQL lubrication technology uses very little oil, it is fully consumable lubrication, which is very easy to clean the machine and factory environment.
(3) Exemption of cutting fluid (oil) emissions
Metal machining benefits from micro-lubrication technology
MQL is a green manufacturing technology that sprays high-speed mist particles to the cutting point during the cutting process, which increases the permeability of the lubricant, improves the lubrication effect, and improves the surface quality. The amount of lubricating oil is between 5-50ml/h. (The number of nozzles to be set is the main factor determining the consumption), which is one ten-thousandth of the cutting fluid. The advantages are: reducing the cost of the lubricant, drying the workpiece without cleaning process, eliminating the need for waste treatment, and improving the processing environment.