As the rapid development of machine tool industry, leap of industry of domestic machine tool, also increase ceaselessly as obtain employment number. Divisional to professional personage machine tool is an easy thing, can be opposite for a lot of people that just added machine tool industry, the type of the machine tool is too much, it is very difficult that resolution rises. now circumstance, lake of overgrown with weeds a conformity machine of mill of numerical control carve 3 type, convenient everybody is distinguished. Make clear 3 type of Hunan distinguish above all: The first, numerical control mill and machining center are used at finishing the treatment facilities of the workpiece that bigger milling measures. The 2nd, machine of mill of numerical control carve is used at completing lesser milling volume, or the treatment facilities of soft metal. The 3rd, machine tool of high speed cutting is used at finishing medium milling to measure, and fall the burnish quantity after milling be treatment facilities of lowest. The structure that analyses afore-mentioned equipment deep can help us make right choice, we can undertake an analysis from different point of view. The first, from mechanical angle. The mechanical cent of the machine tool is two parts, mobile part and not mobile part: Workbench, slide, the cross spends a stage to wait for mobile part, bed, pillar to be not mobile part, above all, with respect to numerical control mill machining center, requirement of sex of steel of blame shift part is first-rate, requirement of sex of mobile part steel is first-rate. Its advantage is to be able to have drawback of heavy cut; : Because mobile share is same giant, sacrificed machine tool flexibility, helpless to tiny part and fast feed. Next, with respect to machine of mill of numerical control carve character, sex of its steel of blame shift part has asked, sex of mobile part steel wants with below the problem before be neatly, as far as possible a few lighter, maintain certain steel sex at the same time. Main good point is to undertake comparative petty treatment, treatment precision is tall. Because steel sex difference has heavy cut impossibly so,can undertaking to soft metal high speed machines; defect is. Finally, with respect to machine tool of high speed cutting character, requirement of sex of steel of blame shift part is first-rate, sex of mobile part steel asks to had been compared, and as far as possible deft. The cutting that its advantage is the particle in can undertaking (the exemple is general φ the flat bottom knife of 10, to 45 steel (300) deep-felt deepness with 0. 75 had better) ; defect is to be used correctly below can develop efficient, low cost, make burnish quantitative change is few. Incorrect use, can make the reject accumulation of cutting tool is like hill immediately. 2, analyse from numerical control angle. The first, machining center logarithm charges numerical control mill systematic requirement rate is average, 0~8000RPM of main shaft rotate speed is controlled. The 2nd, vulture mill confidential demands system of high-speed numerical control, 3000~30000RPM of main shaft rotate speed is controlled. The 3rd, machine tool of high speed cutting asks system of high-speed numerical control and wonderful servo electric machinery are characteristic, 1500~30000RPM of main shaft rotate speed is controlled. 3, analyse from process designing software. Tell from the angle of software, numerical control mill machining center, be like,machine of mill of carve of machine tool of high speed cutting can use CAD/CAM software of the standard: MasterCamCimatronPEUG. Milling machine thinks Cimatron cutter track is a bit better normally, the software of new edition observes and study adequately of cutting tool all the time the uniformity that cutting measures, especially the knife enters those who walk out of the job momently speed and pliable sex, and in inflection point follow poor algorithmic problem (FollowingError) , make result and blueprint form more stick into, CAD part just used intuitionistic three-dimensional and hypostatic modelling to wait for repass IGS like Solidworks in great quantities turn into CAM software to undertake machining. CNC Milling