Proper 3D design produces the challenge that plan conquers dentistry mould place is faced with
Time:
Click:89
source:WEINBERG CNC Machining
A 3D design that comes from SensAble Technologies company produces program, make the design of the mould of finished product of series false tooth of Mertz Detal company and manufacturing process, 24 months from before are cut to 6 months, still improved the quality of the product at the same time. The fashionable dress of popularity of no less than in that way, the production of the false tooth also is producing change as the development of its style. When the tooth needs to change, dentistry doctor and patient can be mixed from all sorts of design styles undertake choosing in functional false tooth. German L ü the Merz Dental company of Tjenburg is one of high-end businesses that pursue false tooth design, have the productivity that makes 1.5 million false teeth every year. The curve that the false tooth that Merz Dental company produces has soft beauty, different ply, natural tooth backbone and other imitate are natural exterior detail of the tooth, although its appearance change appears very small, but the design of crucial position has very big difference, normally every other needs a few years to be updated. In addition, as a result of the false tooth must carefully perch, need to match suitably with whole oral cavity already, also need to be opposite with partial tooth neat, it is crucial that accordingly its design precision and manufacturing precision. Consequently, use get together methylic acrylic acid armour ester (PMMA) or the false tooth pattern that similar acrylic material creates (graph 1) must apple-pie, in order to ensure end item can satisfy the comfortable talking requirement that eats function and clarity, and also should satisfy the beautiful demand that makes a person cheerful. Graph 1 Merz Dental: ? The false tooth manufacturer that Chi of ┘ of Yu of cough of ㄈ of Yu of garden of house rotten Shi bilks company of Erz Dental of which ＞ Zuo to use CAD/CAM software to undertake the false tooth is designed as the first and feel proud. This company cost time of a year to test all sorts of CAD/CAM solutions and executive FreeForm free model full, this is plan of production of design of a 3D, introduced from SensAbleTechnologies company 2003, use at supporting faster working technological process. The design process that software of FreeForm free modelling lets mould of finished product of false tooth of series of Merz Dental company and manufacturing time from 24 months cut to 6 months, improved the quality of the product at the same time. Because its have organic 3D to design ability, reach the characteristic that analyses 3D model, software of FreeForm free modelling helped Merz Dental company accelerate craft to develop a process, ensured the batch of high grade mould is produced. As software of FreeFrom free modelling update ceaselessly, merz Dental company can save more manufacturing time, and its total digitlization work flow also got be refininged further. Since 1952, when its begin professional work with the name of company of Zahnfabrik Werchan Dental, and be before the dentistry data unit of its and Merz Pharm limited company is amalgamative, merz Dental company is updating range of products of its false tooth ceaselessly all the time, every other a few years, metropolis to its the product of a certain series undertakes redesigning. Its product of series of 4 big false teeth, no matter be in appearance (circle, square or flat look) , this kind of aesthetic respect such as dimension and color is changing ceaselessly, offers each series product, all have 22 kinds of different dimension pattern. And, product of series of every false tooth included the mankind the flute profile of avery kind of of 32 teeth, already can complete is bought, also can purchase alone. So extensive product, reach the kind of its random choose and buy, mean Merz Dental company to must maintain the pattern of a variety of 280 production false teeth, formed a strong business system that is a center with the mould. The wax-pattern handiwork that working flow involves the challenges a tradition false tooth that place of traditional work flow is faced with to suggest by blueprint is made shape, use an electron to etch next craft makes a pattern, but also be with handmade means undertakes. This has been the art with a perfect many sided, but not quite accurate still, and very time-consuming. The occurrence of CAD/CAM, provided a number through be a model to refine initial drop, machine accurately through be being mixed more accurately, raised the design of the mould and mould workmanship greatly, traditional CAD/CAM tool and working flow also are facing a few new barriers and challenge: (1) traditional CAD work flow transfers the surface to contact from scanning, form curved surface of a NURBS thereby. To design of advanced geometry graph, this craft is good, but to resembling a false tooth for such organic appearance, CAD system of the standard cannot operate conversed patch smoothly, need more time, this can create not quite favorable result commonly. Nextpage (2) traditional mould workmanship relies on treatment of NURBS curved surface completely, but NURBS is not to catch a tooth the best definition format of complex form. (3) most die manufacturer is being held in the arms to the means that from STL file direct milling machines very distrustful manner. In traditional CAD/CAM system, break up STL or molded lines of a branch is being found on STL is impossible almost. However, if can be united in wedlock with perfect cent face and photograph of attrib border line, so the treatment on the STL that preparing meticulously, can achieve rapidder rate, can achieve better result. Company of graph 2 Merz Dental arranges what sell on chipboard (man-made) the CAD/CAM work flow that false tooth course improves however, use correct CAD/CAM work flow to be able to make model and mould make a process reduce the time of a few weeks, the precision that can ensure its are machined again at the same time and accuracy. Input software of FreeForm free modelling, can let Merz Dental company avoid patch and NURBS, shut STL file. The mould branch of Merz Dental company already the FreeForm freedom of SensAble company modelling software blended in his in design and manufacturing technological process. To accelerate working technological process, the CAD/CAM software of this locality of support of Merz Dental company is advisory -- Antonius Koester limited company, because this company has the extensive knowledge of high speed treatment and scanning technology. Be in Merz Dental company, the false tooth that design personnel begins to have through will showing or file of flute profile library (it is STL file normally) the input arrives in software of FreeForm freedom modelling, so that clear and be revised quickly, optimize appearance and scanning the tooth form of alterable dimension. Orthodox CAD model founds these appearance is impossible almost, but software of FreeForm free modelling is one builds the 3D organic design on 3 yuan of foundations resembling element to produce a system (it regards as 3 yuan 3D resemble element like element) allow to design personnel to use digital clay to manage with analogue argillaceous means. The software of FreeForm free modelling that is a foundation like element with 3 yuan can use unapproachable rate, make its reach the exact figure that matchs with photograph of a natural tooth. In addition, use software of FreeForm free modelling, need not run the concern between complex patch plan and processing patch and patch, of surface of no less than or requirement of hypostatic model place in that way, go changing dental form. The mould of Merz Dental company makes labour Mr Christian Borowski, union uses unique feeling formula (have feeling function) device, replace computer mouse, make design those who reach height to refine, this locates to the market of Merz Dental company, the distinctive aesthetic that provides man-made false tooth is very crucial. The feeling type equipment of SensAble company allows an user to use the means that handwritten pen inputs to make a model, from theoretic increased user handle, the false tooth model of constant change can be experienced when making the group member of Merz Dental company is designed on screen thereby. This kind of accurately sculpture means, can save time, have huge advantage. The user needs the work at sth with special care on the blueprint in screen only, carve vulture and the share that keep clear of not to need, make they can be inside very short time, make the model that makes more adjacent and natural tooth. Next, mr Christian and his group uses the analysis FreeForm freedom to be able to create character of tooth of design of modelling software place, the professional chemical industry of fixed undercut part and software of use FreeForm free modelling is provided, optimize cent curve in order to decide direction of first-rate drawing of patterns is mixed, can make its form a pattern that has better quality to design automation line so. According to the view of Mr Christian, use design of software of FreeForm free modelling, can make finished product false tooth with first-rate means drawing of patterns, speed of its drawing of patterns really very fast, definition is very high, and drawing of patterns is very light also. A network of dissension of FreeForm free modelling that adds recently function, the mixture form that can let a mould regard STL as the file (use at taking tooth form) with NURBS form (use at closing certainly the surface) undertake designing. The mould that defines by STL antrum allows Merz Dental company to withhold more grain on the tooth, let Merz Dental company undertake from STL file milling is machined directly, won't lose important detail of the tooth and grain so, this actual to revealing its exterior is very crucial. When design personnel prepares examine and verify, the archetypal pattern that Merz Dental company makes his undertakes devising a test, use STL file to undertake on milling machine of Roeders high speed milling is machined next, found the final pattern that in producing, uses lays finally in the false tooth. Merz Dental company also provides such special design service for other company. "Software of FreeForm free modelling makes we can achieve incredible precision and rate, if employ manual means and other CAD/CAM solutions,be impossible to come true. " Mr Christian Borowski of Merz Dental company says, "This solution had helped us ensure the lead character of special 3D model and exact pattern, when its produce rapid change, can make us easily whole the manufacturing technology with mould drive, implementation automation line works. Implementation automation line works.. CNC Milling
