A Comparative Study of Cad Data Exchange Based on the Step Standard (original) (raw)
Related papers
In today's competitive market, information technology tools play a most important role in new product development. Integrated design includes CAD, process planning and CNC code generation. The commercialized CAD/CAM software solutions and industrial systems can be acquired readily. These solutions or systems, however, cannot connect together in a seamless way, that is, they cannot fit in integrated environment. Different CAD/CAM Application software need supports for data exchange in manufacturing enterprises. This article reviews the different architectures of integrated and collaborative information systems architectures. The reviewed architectures reveal that comprehensive interoperable CAD/CAM application software should be developed. Most of current architectures do not support integration of data; they can't connect different CAD/CAM application software seamlessly for data interchange based on STEP Standard (ISO 10303) and can't enable the CAD/CAM application software to collaborate together. Considering these lacks, this article proposes architecture for a comprehensive interoperable CAD/CAM interface; and discusses the different aspects of this architecture. The architecture consists of several layers. These layers support all CAD/CAM application software engaged in product development. The CAD/CAM application software exchange their required information collaboratively based on their own data structure. The architecture layers convert the application software' processed data to STEP based data model. They store the processed data in an integrated database; and vice versa, the layers retrieve the data to the CAD/CAM interface's data structure.
STEP-NC Standard for Integration of CAD and CAM
2015
— This paper presents an overview about standard representation of product data for better communication and exchange between CAD / CAM systems. For mechanical parts, standard use for description of product data is ISO 10303- Product data representation and exchange, also known as STEP. This make possible to use standard data during design, process planning and production stage to integrate CAD and CAM. The main barriers to realizing this concept is most of computer numerical control (CNC) machines, which use ISO 6983 G/M codes language. G/M codes lack the portability because of the following reasons. First it focus only on tool center path rather than machining process, second some vendors use language supplement with their own extensions programme which make it ambiguous. ISO 14649 called as STEP-NC is a new standards which extend STEP standard for NC. STEP-NC replaces G/M codes by remedies the above shortcomings. STEP-NC specifying machining processes rather than machine tool mot...
Computers in Industry, 1984
A reference model is presented, which describes the global functionality of a CAD system in a manufacturing environment. The different interfaces in such a model, their functionality and their contribution to the integration of CAD in a given environment are presented as well. Some standards (existing or under development) to be located in such a framework (e.g. IEEE 488 Bus, PDV Bus, ETHERNET Bus, GKS, VDM, VDI, IGES, etc.) are addressed, and the role of product models and dialogue programming based on dialogue cells is discussed in detail.
Standardized data exchange of CAD models with design intent
Computer-Aided Design, 2008
Modern CAD systems generate feature-based product shape models with parameterization and constraints. Until recently, standards for CAD data exchange among different CAD systems were restricted to the exchange of pure shape information. These standards ignored the construction history, parameters, constraints, features and other elements of 'design intent' present in the model to be transferred. This paper suggests an implementational foundation for CAD data exchange with preservation of design intent, based on the use of newly published parts of the International Standard ISO 10303 (STEP). Case studies are presented which employ a hypothetical STEP application protocol (AP) using Parts 55, 108 and 111 of ISO 10303. A prototype translator based on this AP has been implemented and tested. The paper reports on the experience gained in 'intelligent' data exchange.
IMPORTANCE OF STEP IN THE INTEGRATION OF MANUFACTURING ACTIVITIES
In achieving the CIM, Computer manufacturing and computer aided process planning seamlessly is one of the main problem. For generating product design CAD systems have more tendency keenly than on readily and visibly facilitating the development of a product. At present there is a noticeable require in the souk for computer aided design and manufacturing systems that effortlessly put together and assist design and manufacturing actions, this allows for design changes on the fly, exchange of number element information and competently accepting tool using extremely different machines and systems. Transfer of data between Computer aided design, computer aided manufacturing systems and computer aided process planning is the vital concern in the integration. In the integration how the part data exchange standard is used, we discussed in this paper, with this in the development of STEEP CAD/CAPP/CAM & CNC integrated system what is the role of standard for exchange of product data has been studied.
Study on interoperability problems among CAD/CAM systems in automotive industry
2004
Di dalam industri automotif, terdapat banyak sistem-sistem Rekabentuk Berbantukan Komputer (CAD) dan Pembuatan Berbantukan Komputer (CAM) yang digunakan. Setiap sistem mempunyai penafsiran data yang tersendiri. Hasilnya, data produk yang dihasilkan dan disimpan berada dalam pelbagai format yang tidak serasi dengan berbagai-bagai perisian CAD/CAM yang lain. mi menyebabkan masalah operasi antara sistem berlaku apabila fail-fail dipindahkan dari satu sistem ke sistem yang lain. Walaupun dengan kemajuan yang telah dicapai dalam era pemindahan data antara sistem CAD/CAM ini, masalah mi masih merupakan isu yang besar. Projek mi mengkaji tentang senario masalah perpindahan data CAD/CAM khususnya dalam industri automotif di Malaysia. Dengan merujuk kepada kajian-kajian lain di Amerika Syarikat, Jerman dan Australia, satu kerangka kerja yang membantu industri automotif Malaysia menangani masalah tersebut secara proaktif dicadangkan.