How much is the highest treatment precision of the machine tool? Was here!

6~0.

8μm. 1) thick car do one's best is not being reduced cut fast below the condition, use big cutting deepness and big feed in order to improve turning efficiency, but treatment precision can amount to IT11 only, exterior surface roughness is Rα20~10μm. 2) half fine vehicle and fine vehicle use high speed as far as possible and lesser feed and cutting deepness, treatment precision can amount to IT10~IT7, exterior surface roughness is Rα10~0.

16μm. 3) use on high accuracy lathe build car of grinding essence of high speed of diamond lathe tool subtly nonferrous metal, can make machine precision to achieve IT7~IT5, exterior surface roughness is Rα0.

04~0.

01μm, this kind of turning calls " of turning of " lens face. Milling milling is to incite with workpiece of rotating multiple-cutting-edge tool cutting, it is efficient treatment method. Comfortable at machining all sorts of planar, groove, figuration faces (be like spline, gear and whorl) the special entity face with the mould. According to milling when advocate of athletic speed direction and workpiece feed direction identical or contrary, divide again to arrange mill He Nixi. The treatment precision of milling can amount to IT8~IT7 commonly, exterior surface roughness is 6.

3~1.

6μm. 1) the treatment precision IT11~IT13 when thick mill, 5~20μm of exterior surface roughness. 2) the treatment precision IT8~IT11 when half essence mill, exterior surface roughness 2.

5~10μm. 3) the treatment precision IT16~IT8 when mill of essence of life, exterior surface roughness 0.

63~5μm. Dig cuts dig to cut treatment is to use planing tool to make a level machine a method relative to the cutting of linear reciprocate to workpiece, basically use at the appearance of the spare parts to machine. Dig cuts treatment precision to be able to amount to IT9~IT7 commonly, exterior surface roughness is Ra6.

3~1.

6μm. 1) precision of jack plane treatment can amount to IT12~IT11, exterior surface roughness is 25~12.

5μm. 2) precision of treatment of half essence dig can amount to IT10~IT9, exterior surface roughness is 6.

2~3.

2μm. 3) precision of treatment of dig of essence of life can amount to IT8~IT7, exterior surface roughness is 3.

2~1.

6μm. Grinding grinding is to point to with abrasive, grind a treatment method of redundant material on excision workpiece, belong to finish machining, in mechanical production industry application is compared extensive. Grinding is used at semifinishing machining and finish machining normally, precision can amount to IT8~IT5 taller even, general grinding is exterior surface roughness 1.

25~0.

16μm. 1) surface roughness of accurate grinding surface is 0.

16~0.

04μm. 2) exceed surface roughness of accurate grinding surface for 0.

04~0.

01μm. 3) surface roughness of mirror grinding surface can be amounted to 0.

01μm is the following. Auger cut get a kind of cutting is aperture treatment basic method, bore often undertakes on drilling machine and lathe, also can undertake on boring machine or milling machine. Get cut treatment precision is inferior, can achieve IT10 only commonly, exterior surface roughness is commonly 12.

5~6.

3μm, getting reaming and Konglai of bore with a reamer often are used to have semifinishing machining and precision work after cutting. Boring boring is one kind enlarges the craft of internal diameter cutting of aperture or other circle outline with cutting tool, its application limits arrives from half rough machining commonly finish machining, place is odd blade boring cutter normally with cutting tool (call boring staff) . 1) to steely material bore hole precision can amount to IT9~IT7 commonly, exterior surface roughness is 2.

5~0.

16μm. 2) the treatment precision of accurate boring can achieve IT7~IT6, exterior surface roughness is 0.

63~0.

08μm. Note: Treatment precision basically is used at token to produce the careful rate of the product, it is the term that evaluates parameter of treatment surface geometry. The level that measures treatment precision is tolerancepublic errand grade, from IT01, IT0, IT1, IT2, IT3 shares 20 to IT18, among them precision of treatment of this spare parts is highest if IT01 expresses, if IT18 expresses, precision of treatment of this spare parts is lowest, machinery of general mining plant attributes IT7 level, general and agricultural machinery attributes IT8 level. What product component presses function is different, the treatment precision that need achieves is different, the treatment form of the choice and treatment technology are different also. CNC Milling