QFD for MachineDesign

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Application of quality function deployment QFD) method for pultrusion machine design planning Abd. Rahman Abdul Rahim Mechanical Engineering Faculty, Universiti Teknologi Malaysia, Johor, Malaysia Mohd. Shariff Nabi Baksh Mechanical Engineering Faculty, Universiti Teknologi Malaysia, Johor, Malaysia Introduction Market demand has changed dramatically over the past decades, and today's competition is on variety and time-to-market, with price and quality continuing to play their ever important roles Paashuis and Boer, 1997). In today's savage competitive environment, enduring success requires consistent excellence in developing new products Wheelright and Clark, 1995). New product development NPD) is rapidly becoming the focal point in many firms' quest for sustained growth and profitability Birou and Fawcett, 1994). Developing new products faster than competitors is an important strategic weapon to capture market share in turbulent markets Gunasekaran, 1998). By reducing the development lead time, a firm is able to respond more rapidly to market trends or to incorporate new technologies Smith, 1997). However, the strategies applied in NPD depend very much on the nature of the business operations. With the changes in manufacturing industries, the product design strategies and methods should be re-examined to meet the current and future market demands Gunasekaran, 1998). The generation of new products is the major feature of complex design under pressure of time and budget constraints and, thus, the costs of errors is the highest at this stage Myint and Tabucanon, 1998). If quality is not designed in originally, no amount of manufacturing expertise or effort will get quality into the final product Fox, 1995). Mass producers and low volume producers adopt different strategies but with the same objectives; to satisfy real market needs in the minimum time at minimum cost. Although quality and price remain critical to success, they are no longer a source of unique competitive advantage in many markets and attention is shifting to speed and flexibility Willis, 1998). Many authors have emphasized the importance of speedy new product development in order to remain competitive in the marketplace e.g. Eversheim et al., 1995; Gammack and Jenkins, 1997; Prasad, 1997; Wei et al., 2000). Time based competition has emerged as a winning strategy Rosas-Verga and Vokurka, 2000). Products are becoming more and more complex with a reduced development cycle, so effective quality control and efficiency in the development cycle is essential Rook and Medhat, 1996). Due to shorter product life cycle and competitive manufacturing world, concurrent engineering concept becomes very important Myint and Tabucanon, 1998). Concurrent engineering was developed in response to the need of manufacturing companies to reduce the time taken to develop and introduce new products in order to remain competitive Anumba et al., 2002). Sohlenius 1992) defined concurrent engineering as a way of work where the various engineering activities in the product and production development process are integrated and performed as much as possible in parallel rather than in sequence. It focusses on parallel processing and by that to decrease the development lead time and increase quality by integrating product and process design. According to Kalpakjian 1995) concurrent engineering is a systematic approach integrating the design and manufacture of products with a view to optimizing all elements involved in the life cycle of the product. The goal of concurrent engineering is to design better, higher quality products faster and cheaper by getting everyone from manufacturing and quality through safety and maintenance involved in the process before settling on a design and yet it has proven notoriously The Emerald Research Register for this journal is available at http://www.emeraldinsight.com/researchregister The current issue and full text archive of this journal is available at http://www.emeraldinsight.com/0263-5577.htm [ 373 ] Industrial Management & Data Systems 103/6 [2003] 373-387 # MCB UP Limited [ISSN 0263-5577] [DOI 10.1108/02635570310479954] Keywords New products, Quality function deployment, House of quality Abstract Machine design and manufacture is the key to the advancement of manufacturing industry. Before any machine can be designed, it is important to establish requirements of the machine. Identifies quality function deployment QFD) as one of the tools that can be used to identify customer needs and link the needs to product design. By bringing forward customers' requirements into the design process, design rework and unnecessary iteration between design and manufacture can be reduced. In this project, QFD for a pultrusion machine design has been chosen as a case study. QFD was applied at the front end of the design process. The QFD process started with identifying the customers and determining their needs. These needs were translated into engineering requirements which were then used to formulate general specifications of the machine. A step by step approach was introduced to make the QFD process more manageable. Reports on the first phase of a research project in which QFD was used to capture all vital information from the customers and translated that into engineering requirements.

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QFD for MachineDesign

Transcript of QFD for MachineDesign

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