PowerMILL software processes medium application in the mould

7 document label piles up: B article number: 1671-3508-2010-11-18-420Application Of PowerMILL Software In Mold ManufactureAbstract: PowerMILL Is One Of The Worlds Leading CAM System, it Is A Freestanding 3D Processing Software, it Can Rapidly Developed By The Input Model Of Free Cutting Tool Path.

This Paper, starting From The Actual Application PowerMILL Software Based On The Brief Introduction Of The Mold Of High-speed Machining Function.

Key Words: Machining Process; Tool Path; Mold Manufacture; Machinery of PowerMILL Software1 foreword is made is industry of a base, long-term since machining take time, arduous, cost difference of tall, precision, efficiency is low. As center of world manufacturing industry to China migratory, rise substantially to the amount of machining and quality demand. Design with three-dimensional software very intuitionistic, handy, the three-dimensional software in the design develops at present very fast. Delcam is the world specializations bannerly CAD/CAM compositive system develops business, its software product applies to the design of the product that has complex body, spare parts and mould to make, apply in aerospace car, shipping, internal-combustion engine, electric home appliancesMeans of 3 kinds of rough machining was provided in PowerMILL of 1 rough machining, use among them most is three-dimensional slant cleared model machines place area. According to the characteristic of rough machining, to high speed treatment the choice on cutting dosage should be " shallow cut deep, speed gives " . To the requirement of cutting tool, consider integratedly according to model appearance and dimension, answer to choose the cutting tool of big diameter as far as possible. In rough machining strategy, cycloidal treatment is very useful, means of this kind of treatment appoints path movement with edge of circular shift means, can avoid cutter track swerve, drop machine tool negative charge, reduce cutting tool to wear away, avoid the tall cutting load that the likelihood in traditional rough machining appears, realize high speed cutting. If the graph is shown 1 times,cycloid is machined. Pursue special attention still answers in rough machining of 1 cycloidal treatment set semifinished product is in X, Y, Z3 directional dimension, ask according to the treatment of workpiece or before whether does the line of cutting tool center that the treatment case of line working procedure will come decide cutting way leave semifinished product dividing line. The graph is shown 2 times is by " the smallest be restricted / the biggest be restricted " the produces without patulous semifinished product place cutting tool method that will decide. Graph the 3 cutting tool method after expanding for semifinished product. The workpiece bottom flank after expanding it is thus clear that also can be machined, and such treatment method jumps the knife is little, but handling time is long. If bottom flank is by before line working procedure (abrade treatment) finish, use a figure the semifinished product of 2 is more appropriate. Graph the cutting tool method before 2 semifinished product are patulous pursues the main purpose of the semifinishing machining of cutting tool method after 3 semifinished product are patulous is the surplus when assuring finish machining even, the most commonly used and simple effective method is treatment of referenced cutting tool. To get logical cutting tool way, want to notice surplus should keep consistent with rough machining surplus. The cutting tool diameter of method of referenced cutting tool should be less than the cutting tool that is used by place of referenced cutting tool method, cannot build cutter track otherwise. If pursue 4, the graph is shown 5 times. Graph graph of Nextpage of semifinishing machining of 4 referenced cutting tool emulates imitate effect after 5 semifinishing machining 2.

Strategy of finish machining of 2 finish machining is the strategy of a kind of treatment that a kind of area processes the spare parts design form after cleared treatment. PowerMILL offerred strategy of a variety of 20 high speed finish machining to us, three-dimensional slant buy, etc expensive precision work, optimal wait for the strategy such as the expensive precision work, expensive precision work such as helix to be able to make sure cutting process is smooth suitable, stable, ensure the material on workpiece of can fast excision, get high accuracy, slick cutting surface. (1) finish machining of parallel of parallel finish machining is to pass edge Z axial to fall umbriferous one defines appearance of line draw a frame round to produce cutting tool method to the model beforehand. Pass above all already chose border of curved surface set, way of cutting tool of parallel finish machining is formed inside attrib border limits. The parameter such as row spacing adopts the form set that the graph shows 6 times. The attrib border use in PowerMILL is OK set the range that machines method the smallest, attach most importance to especially in local treatment should, if pursue 7 in shows cutter track is machined with respect to what avoided unwanted position. Graph form of 6 parallel finish machining pursues cutter track of 7 parallel finish machining (2) wait for the expensive precision work such as expensive precision work this is a kind of cutting tool in constant the treatment of the cutting on Z height layer is politic. Its application is wide, most agree with have abrupt or the treatment of the cliff model of vertical plane. It can install the cutting tool between every Z height cut and cut, in order to eliminate knife mark. Also can choose the helix option in this strategy, generation goes out without cut the way of cutting tool of expensive precision work such as the helix that cuts. If want to acquire high exterior quality, cut and when cutting a work, no matter be rough machining or finish machining, should use circular arc to be cut and cut a method to be cut or leave work. Should avoid as far as possible perpendicular next knives, near spare parts surface directly, because such meetings lower cutting rate, can be in at the same time spare parts apparently leave mark of a lot of knives. Definition step pitch is used normally " next the smallest cutting step pitch " option, step pitch is smaller, precision is taller, handling time is longer also; And " next the biggest cutting step pitch " when calculating with rudimental altimeter, use. Graph 8 cut to be cut install with connective. Graph 8 cut cut install with connective (3) optimal wait for expensive precision work this is one wait integratedly tall treatment and three-dimensional slant the mixture that buy machines is politic, integrated above two kinds of politic advantages. When using this strategy, abrupt model area will be used wait for tall treatment, the area of other evenness is used three-dimensional slant buy treatment. To make sure means of these two kinds of treatment is used effectively, distribute the model into abrupt peace calm with border normally two area are machined respectively. The side of evenness of cutting tool method that the graph shows 9 times uses parallel precision work, abrupt face is used optimal wait for tall treatment. Nextpage pursues 9 abrupt area use optimal wait for expensive precision work (4) clear part treatment has clear part precision work the strategy of 5 different types: Many drawing style clear part, clear part, suture clear part, along clear part and horn of automatic Qing Dynasty. All clear part machine strategy to specify dividing line part. PowerMILL will analyse a model, locate the area of correspondence of place of dividing line horn, the either side that can press cutting tool method dividing line horn subsequently cuts out. Accordingly, can use a kind to strategy machines abrupt area and use another strategy to machine decharge area. The definition method of dividing line horn is shown 10 times like the graph. Graph the definition method of horn of 10 dividing line is in strategy of clear part treatment, drawing style clear part uses edge acuteness an internal angle to undertake " only way " treatment, dividing drawing style Qing Dynasty is treatment outside horn be based on the area between referenced cutting tool and activation cutting tool, remain namely treatment. To commonly used automatic Qing Dynasty horn is the union along clear part and suture clear part, method of this cutting tool is used automatically in decharge area along clear part finish machining; Precision work of suture clear part is used automatically in abrupt area. The defect of method of this kind of cutting tool is, because cutting tool method is one whole, because this is cut very hard through be being cut,go out and join, and new sort method will control cutting tool route. What the graph shows 11 times is finish machining of horn of automatic Qing Dynasty. Graph what finish machining of horn of 11 automatic Qing Dynasty is worth to be carried is, the row spacing in clear part treatment is by " rudimental height " this one parameter decides. After adopting strategy of on in order to a few kinds of finish machining, adopt a plan the 12 emulation imitate effects that can see work. The graph emulates imitate effect 3 PowerMILL after 12 finish machining other and auxiliary function introduces 3.

1 safety has not been had cutting safe treatment is CAM system a very main component. A few other software are the mathematical model in describe numerical control process designing with high-ranking curvilinear equation, the rank number of such curvilinear equation is higher, mean more complex, the time that the computer handles is longer, increased instability at the same time, and the odds that make mistake, make mistake in the process of treatment had meant cut (cut mould interior, cause mould underfill to need sequel filling solder) . And the safety performance that PowerMILL software improved CNC Machining, below the premise that assures to machine precision, had solved cut problem well, make process designing personnel has not had cut care, to the treatment of the mould efficiency and treatment accuracy provided reliable safeguard. 3.

2 collision check collision to interfere an examination is a very important segment in process of contemporary mould treatment, say to coming at other factor, the influence of collision is ruinous the biggest. Light the damage that causes cutting tool, the injury of spare parts surface, weigh what cause machine tool main shaft to be out of shape, can cause huge pecuniary loss to the company, and the mould makes periodic extension, client letter is reduced with what spend etc. Because this is right the demand of process designing safety, treatment safety is higher and higher, those who make collision interferes an examination to make CAM system is necessary. The cutting tool entity that sets inside PowerMILL is emulated and imitate of treatment of actual machine tool is emulated make process designing personnel more intuitionistic, undertake safe process designing is mixed conveniently examine, prevented the damage of mould, cutting tool, machine tool, managing finished cost. Software of PowerMILL of 4 last words makes medium application in the mould, it is the successful model that trend modernization makes, it makes extensive production staff comes out from the disengagement in multifarious manual process designing and computation, make create the job more human nature is changed, relaxed and rich vigor. Of course, powerMILL still has rife fact to use a function, the article fails detailed introduction. CNC Milling