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1 2008

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Concurrent engineering and DFMA approaches on the development of automotive panels and doors

Krumenauer F. Z., Matayoshi C. T., da Silva I. B., Filho M. S., Batalha G. F.

Journal of Achievements in Materials and Manufacturing Engineering

2008

Vol. 31, nr 2

690-698

Purpose: The automotive industry, in countries such as Brazil, China and India, in contrast to the North American and European markets, is in full expansion. Due to the huge competition in the globalized automotive market, such countries face a challenge to continue this expansion. Especially important in order to win this battle, will be their capacities to release new products in the market faster than their competitors and with more cost efficiency, making an appropriate use of tools such as total quality management, concurrent engineering and increasing the use of innovative concepts in production and logistics [1,2]. Design/methodology/approach: According with the expose above, the aim of this work was to develop DFMA tools for an industrial real case. There several tools that could be included in the Design for Excellence (DFX) methodologies. Initially, two of those can be outstand here: Design For Manufacturing (DFM) and Design For Asse. Findings: In terms of the press shop facilities of the plant the main results, were: layout optimization, press line automation feasibility, reduced setup and increased productivity, improved racks logistic, reduced overhead, reduced stamped part scraps and resources with mechanical presses selling. In terms of the planning activities, the main results were: reduce time to market, reduce press shop machinery and die stamping investments and reduce indirect cost. Practical implications: The main proposal of concurrent engineering is to shorten a product development time through a simultaneous time implementation of the several stages of the engineering activity in parallel and under a concurrent mode offering all information required by all elements of the product life cycle. Originality/value: This paper reviews fundamental concepts in concurrent engineering and DFX aiming to discuss criteria of assembly and manufacturability regarding the development of automotive panels and doors. A more detailed presentation of the Finite Element Analysis (FEA) and Computer Aided Design (CAD) results obtained during the practical industrial case of auto body panel development are not presented here due to data confidentiality and page limitation.