The article discussed the ideal 3D model that uses PowerSHAPE and PowerMILL software to cut edge punch to forginging and CNC Machining method, forging with W2076 ditty axis the punch that cut a margin is exemple, right before modelling of 3 kinds of 3D and CNC Machining method undertook analysis and contrast. New method has managing mould stuff, improve treatment efficiency, cancel the characteristic of manual milling and benchwork handiwork burnish, and can rise the precision of the mould and use effect. If the graph is shown 1 times,cut the structure of edge punch, the structure of mould of the punch that cut a margin is more special, except model groove, outline should be machined outside, the A1 that machines a mould even, A2, A3 and A4 discretion face. As a result of before of computer software restrict and to cutting the definition of face of edge punch discretion and concept, all the time since the face of on any account that thinks to cut edge punch has 3D model without method at all, although can modelling, also be one comparatives to be mixed hard trival process. Accordingly all the time since 3D modelling is done only model groove and outline, the treatment craft of punch is model groove and outline part use CNC Machining, after part of face of on any account uses mill of manual circular arc to machine, benchwork undertakes the hand moves emery wheel burnish. Graph if the graph is shown 2 times,the structure of the 1 punch that cut a margin uses the result of CNC Machining, after CNC Machining chamfer, periphery is sharp edge, use face of discretion of mill of circular arc mill next, as a result of model groove is complex, face of on any account divides 4 kinds of dimension only again, accordingly manual mill controls the appearance after mill and dimension accurately very hard, face of on any account is uneven, extremely irregular discontinuous also, must benchwork handiwork burnish achieves use requirement. Graph the 2 results that use CNC Machining since some factory after introducing PowerSHAPE and PowerMILL software, this factory made fumble ceaselessly and study on the foundation of this software, and was changed cut the concept of face of edge punch discretion, used this software to undertake the CNC Machining of 3D modelling and mould afresh to cutting edge punch, make the mould uses CNC Machining entirely, cancelled mill of manual circular arc and benchwork handiwork burnish, got the result that expect is less than. The article will cut edge punch to be with crankshaft W2076 exemple, to around modelling of 3 kinds of 3D and treatment craft undertake detailed analysis and contrast. The modelling method with the most primitive contrast of Nextpage3D modelling method takes no account of the face of on any account of punch completely namely, just use the model of upper mould 3D of forging. The method that uses generally now is namely on foundation of formative of upper mould 3D, punch area of the smallest on any account considers to go in, if pursue 1 medium A2 dimension, begin from place of the face that distribute a model on forging reduces the size that cuts off A2 entirely. Current, the new method of the experiment is the idea that change discretion face has 4 kinds of measure only, face of so called discretion the curved surface with the rugged wide 1~2mm with full successive strike out, although need a few time to have 3D model, but the union of the function of the face that distribute a model in using PowerSHAPE software and punch contour line found quicker 3D modelling method. Final model groovy modelling is shown 3 times like the graph, gules part is face of alleged on any account be out of shape part. Graph 3 final model groovy modelling for the clearer distinction that shows method of 3 kinds of modelling, can have the aid of pursues the comparative sketch map of 4 undertakes comparative. Graph the comparison of method of 3 kinds of 4 modelling the CNC Machining part of the comparative punch of punch treatment method is the method that uses the treatment after machining outline first chamfer, go up in this bit new old method does not have distinction. Be machined actually even if go up in the foundation of outline treatment mould, search to the knife with the exterior apogee of the mould, undertake model the CNC Machining of antrum, this bit of new old method also does not have distinction, distinction differs with respect to what depend on 3D modelling method, the result of treatment just has very big distinction, graph 5a is the imitate appearance after common method treatment chamfer, can see from inside the graph model groovy brim is sharp, and uneven, need again have enough to meet need arrives on the circular arc mill of another workshop undertake manual Xiu Xi, because form is complex, manual Xiu Xi machines curved surface without method, the face of 4 kinds of discretion that can ask according to blueprint only accordingly undertakes Xiu Xi, the place of the others must carry benchwork undertakes burnish. Nextpage pursues 5 use common method (A) with new method (B) the 5b of imitate figure figure after treatment chamfer is the imitate appearance after using new modelling treatment chamfer, 1 what can see periphery. The face of alleged on any account of 5mm has been machined entirely reach the designated position, and form is more regular. Accordingly, need not mill of recycle circular arc undertakes milling and benchwork burnish, want benchwork polish only can. The contrast that machines a result undertakes intuitionisticly contrasting demonstrative to compare, still use the means of sketch map. If the graph is shown 6 times, machining pair of knives when is to be on the face that distribute a model, machine what separating modular side at 0 o'clock namely apparently, receive the treatment of travel chamfer next. Graph sketch map of result of treatment of 3 kinds of 6 methods from the graph 6 in can see intuitionisticly, after before two kinds of methods pass mill of circular arc mill to cross face of on any account, the height of the mould has a few losses, different mould loss is specific measurement is different, the mould height tall 3mm that compares commonly used method from the new method that the mould circumstance computation of W2076 gives, as it happens is the height that the punch that cut a margin renovates, it is OK to say new method so many opportunity that renovates. Handling time is base with method of commonly used treatment 100% , other 130% what primitive method is respectively when two kinds of methods process work, new method is 80% . The aftertreatment time of the mould after CNC Machining also differs somewhat, primitive method and commonly used method need to have side of upland of circular arc mill (3.
5h) , benchwork burnish (3h) , benchwork polish (1h) 3 paces processing, gross need is cost 7.
5h. And new method needs to undertake benchwork polish only (1h) , photograph comparing is other two kinds of methods were saved 6.
5h. From the point of use angle, new method is better, because face of on any account is even, when cutting a margin so, the contact of punch and forging is even, because the force of this punch also is even, so right of forging cut an edge to be out of shape the effect that has to alleviate. This viewpoint from theoretic saying hold water, but still remain more and easy generation cuts an edge to be out of shape of forging examine actually. This method although workload move arrives on 3D modelling, but the precision of the mould and treatment efficiency got ameliorative, and raised the utilization rate of material, and the punch cutting a margin that can popularize application to be provided to any models. So far, had popularized application to arrive other crankshaft (W1832) , bushing is forked (W2756) and change a section to the arm (W2712) in the production of the punch that cut a margin, but the mould of model of curved surface cent has not had a test. CNC Milling