Be based on the NX2.0 software application in CNC Machining

Undertake handle and be machininged in 0 software, introduce NX2.

The data of 0 software changes a function, machine strategy and curved surface process capability. NX2.

0 it is to face close together and production industry, compositive CAD/CAE/CAM software system, offerred from products plan, analysis, emulate numerical control program to generate wait for solution of one a complete set of. Article introduction guides the figure model that is not engineering software 3D MAX NX2.

0 software, have the process that handle and machines. One, if the treatment pre-treatment to figure model pursues 1 is shown, guide by the Stl file format of 3DMAX NX2.

The figure model of 0 software, the type of the model is Faceted Body. Because the model does not have any parameter, because of this NX2.

0 medium majority build model and editor command to cannot be operated to it more, use indirect method to operate it only. Above all the model facial adjust to screen, adjusting coordinate is, do rectangle of 160mm of × of a 120mm, adjust the model proper size to move through Edit-transform-scale and Translate command in the rectangle, undertake to the rectangle Extrude is operated next, will be except facial wrap up in figure model in 6 body. Because figure model place belongs to the reason of the type, cannot undertake with 6 body Unite is operated, because this is passed,undertake deriving with Stl file format to this file, guide, make figure model and 6 models confluence are an organic whole, turn into Faceted Body type, the treatment model of such figure is built, if pursue,2 are shown. 2, use NX2.

0 treatment module undertakes the model machines 　 1.

Data equipment type selecting and treatment technology design machine quality and effect like the model for guarantor, the material of treatment chooses aviation forge aluminium, chosen machine tool carries machine tool DMU-80T gently for high speed, main shaft rotate speed is top can amount to 30000r/min. According to the dimension of figure model, choose embryo of wool of 70mm of × of 120mm × 160mm, according to characteristic of figure model outline and material characteristic, cent of treatment working procedure is 4 working procedure: Rough machining, semifinishing machining, finish machining and clear root are machined. 2.

The quality that cutting tool is chosen and cutting parameter machines to assure surely really and treatment effect, cutting tool is chosen entirely agree cutting tool of coating of that hard alloy, rough machining chooses 4 blade of Ф 10mm to establish milling cutter, cutting speed is 80m/min, n=2500r/min of main shaft rotate speed, cutting feed speed chooses Ф 5mm for 200mm/min; semifinishing machining milling cutter of head of 4 blade ball, n=5000r/min of main shaft rotate speed, cutting feed speed chooses Ф 2mm for 600mm/min; finish machining milling cutter of head of 4 blade ball, n=12000r/min of main shaft rotate speed, cutting feed speed is treatment of 1000mm/min; clear root to choose 4 blade of Ф 1mm to establish milling cutter, n=24000r/min of main shaft rotate speed, cutting feed speed is 1000mm/min. 3.

　 of CNC Machining process designing (1) process designing prepares to use NX2.

0 software need to do work of a few preparation to figure model process designing. WORKPIECE of body of 1) general geometry semifinished product sets the honest stuff;2) MCS that is 70mm of × of 120mm × 160mm to machine coordinate is those who be set in 6 body on the face is different;3) playing role is ordinal because figure model is Faceted Body,build;4) of 4 kinds of cutting tool, in treatment of fixed axis curved surface, cannot undertake choosing to facial curved surface, do a dimension to near the auxiliary surface with facial figure very much so, if pursue,3 are shown. When specific process designing, this auxiliary face can regard figure model as facial drive face, realize the treatment of curved surface of facial to figure outline. Nextpage 　 　 (rough machining of 1) of 　 of process designing of treatment of 2) curved surface. The purpose of integral rough machining depends on excising redundant material effectively quickly as far as possible. Use model means of antrum mill Cavity Mill undertakes rough machining, 4 blade of choice Ф 10mm establish milling cutter, treatment geometry body chooses a type to be the figure model of Facets, wool embryo picks 6 system that had made, model antrum cutting type chooses Follow Part, the pace of cutting tool is entered be apart from 50% what be cutting tool, every knife is cut set greatly for 0.

5mm, choice layer is first, arrange mill, component flank mental allowance is set for 0.

3mm, the mental allowance of underside is 0mm, public errand of inside and outside is set for 0.

03mm. In join means the choice is optimized means and open cutter track way, reduce idle stroke, contrail of generated treatment cutter track is shown 4 times like the graph. 2) semifinishing machining. 4 blade of 5mm of Ф of semifinishing machining choice ball head milling cutter, use FIXED_CONTOUR to machine means. Treatment geometry body still chooses a type to be the figure model of Facets, FIXED_CONTOUR treatment means basically is pair of drive means set, choosing Suface Area way to Faceted Body model is more appropriate and handy, drive geometry body chooses the auxiliary range that has made beforehand to regard drive as the face, take a knife with parallel means, cutting type chooses ZIG_ZAG, carry in order to decrease knife frequency, walking along cutter spacing is to pass the value of Stepover to control, the value goes Dao Yue greatly more concentrated, the value of semifinishing machining Stepover is surely 100, public errand of model inside and outside is set for 0.

03mm, mental allowance is set for 0mm. Graph 5 for semifinishing machining contrail of transverse cutter track, through observing to cutter track, bits is cut in the abrupt place of the model bad, increased the contrail of fore-and-aft cutter track to workpiece so, , face cutting direction to choose to be able to come true to drive. 3) finish machining. Finish machining still uses FIXED_CONTOUR to machine means, 4 blade of choice Ф 2mm ball head milling cutter, the value that uses Stepover is surely 300, undertake machining to the model with more concentrated cutter track, mental allowance is set for 0mm, public errand of inside and outside is set for 0.

001mm, finish machining also uses transverse cutter track and combination of fore-and-aft cutter track. 4) clear root is machined. Clear root treatment uses Flowcut_ Smooth to machine means, use milling cutter of head of Ф 1mm ball, treatment geometry body chooses a type to be the figure model of Facets, machine area to be not chosen, clip geometry body chooses the auxiliary range that already had made, such set clear roots machine area to be inside auxiliary face, cutting type chooses ZIG_ ZAG, the pace of cutting tool is entered be apart from 30% what be cutting tool, mental allowance is set for 0mm, public errand of inside and outside is set for 0.

001mm, gotten treatment contrail. 4.

After to program of emulation treatment cutter track is finished, undertake emulation machining to total order, inspection program has had not had cut a phenomenon, emulation treatment shows as a result, all programs had been not had cut a phenomenon. 5.

Effective treatment creates the machine program of G code after aftertreatment of classics of cutter track program, pass into numerical control machine tool to undertake be machininged actually, via machining test and verify, figure model outline and detail appearance are clear, treatment surface is bright and clean degree tall, and cutting efficiency is taller. 3, summary uses model of 3D MAX figure, pass NX2.

0 software processing and numerical control process designing, completed the treatment process of complex portrait model, showed N X2.

0 data change the technological process that machines with curved surface. CNC Milling