Minim is lubricant treatment (MQL is machined) reach its to apply

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MQL treatment is to be based on the ultimate goal that improves an environment and the treatment means that development rises, although its are in milling and turning exercise,still fail to reflect a clear dominant position, but the respect waits in deep aperture treatment, MQL treatment is having first-rate treatment effect however, and more environmental protection and economy. The treatment way that improves an environment is in the task that improves workshop spot to machine an environment, rising productivity and reduce cost while, building to assure the working environment of health of worker body and mind also is crucial job. Because noise, dust reachs pair of because of using cutting liquid worker health to create the problem of the harm,the treatment site that numerous machine adds a company is existing, among them the mist shape particle of cooling fluid is minatory to the worker's health most tremendous. Now, because the application of facilities of high speed treatment is increasing and use puissant cutting liquid in great quantities in the process that improves productivity ceaselessly, environmental pollution problem is more serious, cost also is raising, these problems got the more of people pays close attention to. To solve afore-mentioned problems effectively, the means that people tries to use treatment doing type undertakes cutting, but because do type cutting to appear easily cutting tool service life surface of short, workpiece is bright and clean heat of degree of difference, workpiece is out of shape, the dangerous sex that iron filings handles below high temperature condition and meeting produce the numerous problem such as a large number of dust, fail finally to apply successfully in great quantities. From this, people begins to pay close attention to a few otherer more the way that the treatment means of environmental protection perhaps approachs treatment doing type, use fluid of oily to plant of human body hurtless cutting to undertake machining for instance, perhaps use the treatment means of fluid of minim supply cutting. Latter gets attention fully namely " MQL is machined " means, namely minim is lubricant treatment, also be called " sparge is machined " or " half dry type is machined " . MQL treatment is to be based on the ultimate goal that improves an environment and the treatment means that development rises, use very few cutting liquid only, this affected the service life of cutting tool greatly. But fall in a lot of circumstances, use MQL is machined not only more environmental protection, and the cutting result that can achieve ideal, in the meantime, the service life of cutting tool still can achieve the result that makes a person more satisfactory, so, MQL is machined with respect to can yet be regarded as a kind of equal treatment chooses. The limits that applicable MQL machines 1.

The high speed treatment below high temperature is undertaking prep above machines temperature normally (800 ℃ of 700 ～ ) when high speed is machined, if use cutting liquid, can lower the service life of cutting tool instead, this kind of circumstance leaves the way that can consider to use MQL to machine. In respect of cutting tool life, although dry type cutting is more advantageous, but the other problem that if want to solve high temperature,produces and the face with should be obtained particular are bright and clean when spending, lv of take an examination uses MQL to machine. Well-known, using cutting liquid in machining a process is helpful for cutting normally, but in general steel when high speed is machined, the blade ministry of cutting tool is close to generation 900 ～ the high temperature of 1000 ℃ , be like supply cutting fluid right now, before the water of cutting fluid interior is divided in the blade ministry that did not reach high temperature condition to fall already instantaneous vaporization, lost cooling action, although now and then the thermal shock that arrives at the cutting fluid of cutting blade ministry to also will create didymous blade department, produce soaking phenomenon to blade ministry, because this also can affect the service life of cutting tool. The low speed that such phenomenon is having producing the raw material such as alloy of caloric high temperature easily adds man-hour to also appear constantly, MQL is used to machine means below this kind of state more advantageous. 2.

The workpiece with hot bigger difference machines normal circumstance to fall, intermittent when the workpiece with turning or milling hot bigger difference, can use dry type cutting commonly, because be in the process of interrupted cutting, use cutting fluid changes the temperature of aggravate blade ministry, make cutting tool produces crackle easily, dry type cutting can avoid this problem, but heat often can be brought to be out of shape in process of dry type cutting phenomenon and surface are bright and clean degree of phenomenon such as difference, apparent, MQL treatment is more favorable. 3.

When the deep Kong Jia on small diameter workpiece is versed in undertake deep Kong Jia is versed in on the workpiece in small diameter, MQL treatment can achieve first-rate result. Before, treatment of this kind of deep aperture uses hard alloy gun to get commonly or high-speed steel broach, normally steel cutting speed is 25 ～ 60m/min, every turn feed is 0.

05 ～ 0.

08mm, because this must undertake the cutting of discontinuity, manufacturing efficiency is very low, and because of machine tool rotate speed insufficient or force of the hydraulic pressure that cut bits is small (0.

5 ～ 1MPa) , the problem such as broach tigidity inadequacy causes difference of the ability that discharge bits. Of course, now, as rotate speed of machine tool main shaft rise, speed of the cutting when broach of use hard alloy can achieve 100m/min above, the supply pressure of cutting fluid already also increased the high-pressured position to 5 ～ 8MPa, platoon bits has become very easy. When undertaking small and deep Kong Jia is versed in, if use interior construction to supply hard alloy bit of the system for MQL, proper refrigeration undertakes when treatment benefit at cutting, in the meantime, the scrap of the proper volume that cutting generates will play a bit in the action of high-pressured mist steam, because this is below the case that does not have discontinuity cutting, also undertake effectively machining. When using long and thin bit usually, the rigid inadequacy that is cutting tool not simply goes against a bits, the narrow chamfer that discharge bits also goes against fast platoon bits, appear easily crowded bits phenomenon, cause thereby torsional increase bring about cutting tool to rupture, accordingly, the bit that is used at MQL treatment should have advantageous tigidity on the structure, additional, big limit ground answers to reduce cutting resistance on the design of its blade ministry, in the meantime, for benefit at discharging bits, the chamfer that discharge bits should undertake smooth processing. Of course, the cutting tool of hard alloy material should maintain span of very balanced the chamfer that discharge bits and steel sex. The broach that come out is made be used at MQL treatment below this kind of circumstance, cutting speed can achieve 80 ～ 150m/min, every turn feed can be achieved 0.

15 ～ 0.

2mm, and need not undertake discontinuity is machined. Such, not only the service life that prolonged cutting tool, and can improve manufacturing efficiency significantly. The place on epilogue put together is narrated, MQL treatment is built in order to improve working environment for the purpose, with the treatment of traditional use cutting fluid means photograph is compared, put in the difference with particular move on cutting tool life, accordingly, its still fail to reflect a clear dominant position in milling and turning exercise, but the respect waits in deep aperture treatment, MQL treatment is having first-rate treatment effect however, and more environmental protection and economy, accordingly, its scope of application will expand ceaselessly. CNC Milling CNC Machining