Geometrical data extraction of axisymmetric parts from the B-Rep models

• Autorzy: Nikiel, G.

Warianty tytułu

PL

Ekstrakcja danych geometrycznych elementów maszyn osiowo-symetrycznych z modeli B-Rep

• Języki publikacji: EN

Abstrakty

EN

For manufacturing processes planning the different product data are required. Especially, a geometrical description of the manufactured element is indispensable. Widely applied for this aim the 3D models have many advantages in comparison to the 2D models and usually they are more useful. Sometimes it is different. Such situation is in case of the axisymmetric parts, machined on the lathes. A manufacturing process planning can be carried out on basis of a 2D model and often so this is made. Therefore, in this paper an automatic procedure for conversion of the rotational parts 3D model to the 2D model is introduced. In this approach the B-Rep model representation method is applied and a STEP file (ISO 10303:203) as the data carrier is used. Moreover, an example is presented where effectiveness of the described procedure was confirmed.

PL

Projektowanie procesów wytwarzania elementów maszyn wymaga określenia danych wejściowych, w tym opisu postaci geometrycznej. Powszechnie używane w tym celu modele 3D mają wiele zalet, jednak ich zastosowanie jest ograniczone, na przykład podczas toczenia elementów osiowo-symetrycznych na tokarkach. Projektowanie takich procesów obróbki może i najczęściej jest oparte na modelach 2D. W pracy przedstawiono procedurę automatycznego przekształcania danych opisujących model B-Rep takich elementów na postać konturu 2D przy stosowaniu zapisu tych danych zgodnie z protokołem aplikacyjnym ISO 10303:203 (norma STEP). Omówiono także przykład potwierdzający skuteczność takiego postępowania.

Słowa kluczowe

PL

CAD/CAM; model 3D; projektowanie procesów wytwarzania; norma STEP

EN

CAD/CAM; 3D model; manufacturing processes planning; STEP standard

• Czasopismo: Advances in Manufacturing Science and Technology
• Rocznik: 2011
• Tom: Vol. 35, nr 2
• Strony: 73-86
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Nikiel, G.

• University of Bielsko-Biała, Department of Manufacturing Technology and Automation, 43-309 Bielsko-Biała, ul. Willowa 2,

Bibliografia

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