PowerMILL5.5 is in high strenth board draw the application in delaying modular sunken model to machine

5 in press an application case in delaying a mould to machine, relatively detailed ground introduced high strenth board in article medium spring back geometry is compensation, deep model the CNC Machining craft of antrum sunken model and be based on PowerMILL5.

The method of numerical control process designing of 5 and parameter setting. The article can understand want surely and use PowerMILL reader to be helped somewhat. Chang'an mould production center is unit of subordinate of Chang'an car Inc. , it is Chang'an car automobile body and large the large major that enclothes a clip mould design to make produces base, also be the car tastes development base newly. It holds water at 20 centuries 60 time, through development of a few years, own 10 several tall, essence, pointed facility, include a high speed planer-type milling machine of 5 axes numerical control. Have converse project, punch emulates an analysis, mould, check is provided, design of clamping apparatus structure, model the professional technology that scale model and computer assist process designing, had produce per year 200 pairs large and medium-sized the productivity of the mould. In recent years, the center spells solder board mould and mould of high strenth armor plate to the success develops experience in laser. What the article will introduce is high strenth armor plate is pulled delay a mould to be in PowerMILL5.

5 medium numerical control process designing. One, when digital-to-analogue prepares to considering to machine plan, analysing treatment object is very be necessary. This mould is the clapboard before the floor after the car pull the sunken pattern that extends a pattern, board makings is JAC440WN-45/45 T1 of high strenth armor plate.

40. To arrest spring back, used geometrical compensatory method to have proper change to the product, if pursue,1 is shown. The 1 directive in the graph is a product, the model after 2 directives are compensated. Sunken model feature is deep model antrum, have tiny negative horn, should undertake model the face is machined and shape mark aperture treatment, if pursue,2 are shown. Mould material MoCr is cast-iron, machine the material hardness HRC28 before, semifinished product condition is quadrate cast. Graph the digital model of mould of 1 section sketch map introduces UGNX model, there won't be a problem after turning into PowerMILL through model examination in UG commonly, also can use PowerSHAPE filling face, logarithm model is arranged, the interconnected system of curved surface direction is first-rate, go to the lavatory to edit in PowerMILL. Graph 2 section and negative horn examination 2, model treatment of the overall program pattern that the face machines face wants to pass rough machining, semifinishing machining and precision work commonly 3 working procedure. Machine means high to even surplus uses move back and forth or waiting, use a layer to machine means to large surplus. Model before the face is machined, want Xian Qinggen to machine, cutting drops the treatment of a ministry to measure, make knife course does not have the bear of cutting when direction transforms thereby, assured the life of the speed of treatment and cutting tool, improve the efficiency of treatment. Its are less important and reasonable cent piece, use different treatment kind. (Characteristic of 1) basis face is divided piece, abrupt area, even area is machined apart; (2) grows cent piece according to the knife of treatment, divide long, snickersnee, assure to machine systematic tigidity; (When 3) has 5 axes machine tool, can consider to machine the feasibility that places part. 3, the CAD model that the specific treatment craft of sunken model CNC Machining machines the need in UG turns a folder that becomes alone file to put treatment, open PowerMILL5.

5, import data, the method that presses above undertakes process designing. Sunken model is put makings is thick - 1.

4mm, because this arranges rough machining,leave surplus - 0.

2mm, semifinishing machining leaves surplus - 1.

1mm, finish machining arrives - 1.

4mm. Partial machine program introduces mainly below. 1.

Rough machining because of cast is square unburnt brick, we use rough machining slant place area is cleared suitable mill. Because of the mould model the range is more sophisticated, use slant place area treatment can be obtained more the treatment model that accords with mould face. Outstanding circle horn carries the black that cutting tool employs Φ 63R6 milling cutter, row spacing 45mm, step pitch 2mm is cut below. Of PowerMILL wait to open rough machining high, more parameter will optimize cutting tool method. The area filter parameter of form, mature the characteristic to round horn milling cutter, have treatment blind area, filter lesser area. Guang Shunlian receives parameter, light arranged the pointed part part of cutting tool method, be in of cutting tool overload sunken into the adoption that area can have a choice cycloid is machined. Machine even area parameter, can cutting evenness area. High speed machines option, outline light arranges what can change orbit smoother suitable. Had these parameter, when the machine tool is carrying out the knife course of PowerMILL, can maintain constant rotate speed and feed, achieve the goal of efficient cutting. 2.

The purpose of the rough machining of surplus of rough machining incomplete of leftover quantity is purify rough machining when because use big cutting tool and the overmuch surplus that the reentrant place in workpiece leaves, can obtain evener mental allowance before semifinishing machining so, be helpful for improving the treatment efficiency of semifinishing machining. According to rudimental model, with the black of Φ 32R6 outstanding circle horn carries mill cutting tool to undertake place area keeps clear of slanting, arrange mill means, row spacing 15mm, step pitch 2mm is cut below, if pursue,3 are shown. Graph rough machining of 3 incomplete surplus 3.

The clear root before semifinishing machining uses the R12 of milling cutter of hard alloy helix of Shaanxi airline.

Clear root of type of 5 balls pettifoggery, because the area of treatment is not large, beardless cent grows snickersnee to machine. 4.

General metropolis partition uses semifinishing machining semifinishing machining knife of different treatment means basis grows separate staff program, in order to improve efficiency. Should have between area of the consideration when partition enclothe, generation the contact chooses attrib border program. Will press makings face part to be machined with snickersnee parallel, circular arc join, if pursue,4 are shown. Unplug modular face is used wait for tall treatment, craft complement face and product range use long knife parallel to machine means. The light that used round part is in to arrange processing in the pointed horn of parallel treatment and the cutting tool method that wait for tall treatment, cooperate the means of helix feed. Parallel machines step pitch 3mm, wait for 1mm of tall treatment step pitch. Cutting tool uses the R12 of milling cutter of hard alloy helix of Shaanxi airline.

5. Graph 4 even area use parallel treatment, circular arc to join 5.

The clear root method of the clear root PowerMILL before finish machining has 10 a variety of. R10 uses clear root of ball pettifoggery type, r5, R3 uses the formula of pen of referenced cutting tool in strategy of PowerMILL finish machining clear root, the rudimental surplus that comes to purify reentrant place fail to machine. Be aimed at this model, beardless and other strategy, just be in model antrum ministry distinguishs a root, because the penknife provides a knife to have,grow have short, need partition uses 3+2 axis treatment. 6.

Total characteristic and semifinishing machining are processing finish machining precision work is same on means, because use,be only cutting tool is smaller divide more area with briefer meeting, step pitch and public errand should smaller. Parallel treatment step pitch 0.

5mm, wait for tall treatment step pitch 0.

5mm, tolerancepublic errand 0.

02. 7.

The interference collision that places horny 3+2 axis to machine the knife clip that uses PowerMILL, arbor checks a function, detect the length of effective cutting tool that gives us to machine a need. To deep antrum area, the cutting tool that needs to use is longer, treatment efficiency is low, accordingly we use the 3+2 function of PowerMILL to machine. The figuration mark aperture of the mould, aperture axes is model the normal Z axis of the face has included angle, because this also wants to use 3+2 axis function, if pursue,5 are shown. Axial can be fastened through defining user coordinate or prepare in modelling software. Graph 5 place part treatment of 20 ° parallel, circular arc joins 8.

PowerMILL of knife course editor is very convenient to the editor of knife course, have random to cut out wait for a function with order of method of recomposition cutting tool, if shift begins dot, random to revise position leaving a sword to wait, satisfy the treatment below all sorts of circumstances, and it is very safe. After knife course editor is finished, want to name to the program, VB program is hanged to undertake naming outside can using what PowerMILL offers. Main demand can be achieved in a few seconds, repass is changed simply, the numerical control program that accorded with an enterprise names a standard. 9.

The postposition of the program handles pitch on all programs gift postposition processor, computation completes the program, put automatically in folder. The module of the SetupSHEET in wanting to use PowerMILL next is custom-built the pattern plate of craft detailed list of good business. Value of the the parameter that SetupSHEET can collect the cutting tool in process designing, mental allowance, handling time, deepest Z, keep its craft detailed account directly in the center. The parameter that can adopt program of detailed list reexamination is installed, prevent wrong generation. SetupSHEET is very accordingly convenient, improved the efficiency of treatment already, accurate. 3, since center of mould of last word Chang'an uses DELCAM software, improved the treatment efficiency of the mould greatly. The smooth suitable consideration of the program reduced cutting tool cost, the security of the program makes handlers special be at ease. CNC Milling CNC Machining