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Nowości GF AgieCharmilles prezentowane na Międzynarodowym Spotkaniu Technologicznym

Skawiński P.

Mechanik

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2010

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R. 83, nr 1

24-24

PL

W dniach 27 i 28 października 2009 r. w europejskim Centrum Aplikacyjnym w Schondorf (Niemcy) odbyło się międzynarodowe spotkanie firm europejskich, które są użytkownikami maszyn i technologii grupy GF AgieCharmilles. Od 1 lipca 2007 r. firma Agie Charmilles i Mikron działają pod jedną marką GF AgieCharmilles. Zgodnie z hasłem firmowym "Osiągnij więcej" połączyły one doświadczenie i technologie obróbek elektroerozyjnych i frezowania HSM/HPM.

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High-speed milling of light metals

Cus F., Zuperl U., Gecevska V.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 20, nr 1-2

419-422

EN

Purpose: Purpose of this paper: Introduction applicability of high-speed cutting of light metals is presented in this paper. Design/methodology/approach: HSC is the result of numerous technical advances ensuring that milling has become faster than conventional milling and has gained importance as a cutting process. The advantages of the HSC milling are higher productivity owing to the reduction of machining times increase of the flow time of production, reduction of the number of technological operations, increase of the surface quality and longer service life of tools. The machining conditions for execution of the HSC (36000 min-1 and feeding 20 m/min) require modernly built machine tools to meet those machining conditions. Findings: Continuous development of new materials is more dynamical, particularly, in the automobile, aircraft and electronic industry and in the manufacture of various mechanical parts. Also the achievements in the area of building of machines and tools, ensuring high cutting speeds (highly efficient machining) have contributed to development of the process. Research limitations/implications: High quality of the surfaces, the quality of this so-called HSC milling can be compared to grinding. Practical implications: High-speed milling of light metals from aluminium and magnesium is more and more frequently used in practice. This result is high quality of the surface and shorter machining times. In some cases when machining by grinding is specified, the latter is omitted. Originality/value: The applicability of high-speed milling has proved to be successfull, when aluminium and magnesium alloying materials are machined.

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Determination of machining parameters in HSM through TSK-FLC

Nandi A. K.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 21, nr 2

57-60

EN

Purpose: The optimal setting of machining parameters that may be realized via a suitable model/controller is an important concern to fulfill the overall objectives in machining. Design/methodology/approach: The present paper proposes an approach for determination of optimal setting of machining parameters in high speed climb milling operation through an TSK-type fuzzy logic controller (TSK-FLC). A novel approach is proposed here which combines the techniques of linear regression (LR) and genetic algorithm (GA) to utilize the advantages of each other, in order to develop an efficient FLC for high-speed milling. Findings: Modeling of manufacturing process enables generating of manufacturing data and knowledge representation in machining process. Comparisons of results with real experimental data as well as those obtained by other common methods of modeling show the effectiveness of the FLC. Research limitations/implications: The design approach of fuzzy logic controller uses experimental data for learning. The shape fuzzy subsets as well as the structure(s) of rule consequent functions are the important concern for optimal knowledgebase (KB) of a FLC. Use of the advantages of both LR and GA makes it possible to achieve optimal KB of FLC. Practical implications: Use of developed FLC results in improved productivity and efficiency of machining process via the setting of optimal values of cutting parameters and the possibility to develop automatic manufacturing system by online determination of machining parameters. Originality/value: The paper describes a method for designing a FLC for manufacturing process by a combination of LR and GA, which leads to eliminate a long regression function as required in standard linear regression method.

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Development in rapid prototyping and rapid tooling systems and their integration with CAx SYSTEMS.

Oczoś K.E., Kawalec A.

Postępy Technologii Maszyn i Urządzeń

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1999

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Vol. 23, nr 3

69-102

EN

This paper presents some new approaches to application of Computer Aided Engineering (CAE) methodology in machine design and manuffacturing and concentrates mainly on Rapid Product Development (RPD), Rapid Prototyping (RP) and Rapid Tooling (RT). Integration of design and manufacturing processes and its role in product development are discussed. The most popular RP methods and processes are assigned into several groups, depending on the state of the material before formation. Several layer filling strategies in Rapid Prototyping methods are described. A couple of the most frequently used Rapid Tooling methods are also presented. Their advantagets and disadvantages are named and briefly discussed. Present RP and RT processes are compared with each other and classified. Interfaces between RP systems and CAD systems are briefly described. Attenion is paid not only to material additive methods, but also to High Speed Milling (HSM). Current trends of development of CAx, RP and RT systems are briefly discussed.

PL

W pracy przedstawiono kilka nowych sposobów zastosowania metodyki komputerowego wspomagania prac inżynierskich (CAE) w konstruowaniu i wytwarzaniu maszyn, koncentrując się głównie na szybkim rozwoju wyrobów (RPD), szybkim prototypowaniu (RP) oraz szybkim wytwarzaniu oprzyrządowania (RT). Omówiono integrację procesów projektowania i wytwarzania oraz jej rolę w rozwoju wyrobu. Zgrupowano najbardziej popularne metody i procesy szybkiego prototypowania w zależności od wyjściowego stanu materiału. Opisano kilka strategii tworzenia warstw, stosowanych w szybkim prototypowaniu. Zaprezentowano również kilka najczęściej stosowanych metod szybkiego wytwarzania oprzyrządowania. Podano i omówiono ich zalety oraz wady. Przedstawione procesy RP i RT porównano odpowiednio ze sobą, a także sklasyfikowano. Krótko opisano interfejsy między systemami RP i CAD. Uwagę poświęcono nie tylko metodom kształtowania przyrostowego, ale także frezowaniu z dużymi prędkościami (HSM). Omówiono aktualne tendencje rozwojowe systemów CAx, RP i RT.