The Research Of New Cylinder Head On APQP Based On IDEF Modle

With China's rapid economic development and the continuous improvement of people's living standards, car becomes a hot consumption gradually. The rapid expansion of domestic auto production,Foreign auto business have also entered the Chinese market. Facing unprecedented opportunities for development at the same time, China's cars'industry also have to face the fierce market competition. In particular, China's accession to WTO,China's auto industry is faced with strong foreign competition in the automobile industry. China's car manufacturers to know how to control their scale of operation,lower parts costs and management costs, improve the quality of service and promote China's automobile industry quality management and quality assurance level.But, China auto industry in management, manufacturing capabilities, quality and price and the international auto market have had a noticeable gap, to which shorten product life cycles, customer demand for increasingly personalized, quality, characterized by increasingly high demand for the new market situation challenges. At the same time,as safer consumer goods, the quality problem of car's has attracted consumers, government and automobile manufacturers to pay high attention. Therefore, the State Bureau of Technical Supervision, the Ministry of Machinery Industry under the auspices of the positive, the three major automobile companies in the United States agencies in China, with the support of the automotive industry to learn from their advanced management concepts——APQP(Advanced Product Quality Planning), In order to improve the competitiveness of the automotive market gradually.This article is based on a foundry for the background research, the main plant to produce engine cylinder head for the main business, in order to carry out large-scale stock car factory. Although the factroy has many years of production experience, but still in the production of the traditional mode of production, the management of old, especially in product quality control, there are many deficiencies. Therefore, the process of plant products for quality control study, the introduction of quality control APQP methods, not only for the plant to solve the practical problems, but also as an example of this method as a factory to promote.In this paper, an analysis of the first part of the first domestic enterprise in the production process the majority of the problems existing in the quality control on the importance of the enterprise, and then put forward the idea of using the APQP process to control product quality. And then introduced the origin of APQP, QS9000 quality certification system is in the way of a quality control. And QS9000 also includes quality control of the other four methods: FMEA, MSA, SPC, PPAP. Then this article introduces the application of another principle - IDEF modeling reasons.The second part introduces the APQP and other methods of quality control theory. APQP is used to determine and develop a product to ensure customer satisfaction so that the necessary steps to promote and everyone involved in the link, and strive to achieve the purpose of customer satisfaction. FMEA focuses on the implementation of PFMEA working principle and the significance of failure mode to determine the risk level of RPN, and detailed description of the RPN and the part of the composition of meaning. As well as how to form PFMEA documents. MSA outlined a measurement system in the role of quality control and measurement of the five nature-based measurement system analysis that is linear, stability, repeatability and reproducibility, bias, and the nature of the common error analysis, are listed in The main application of day-to-day work of the linear, repeatability and reproducibility of the specific methods of operation. SPC introduced a general description of the objects and the application of the stage, the focus of the course describes the major means of control - control chart to determine the meaning and resluts.The third part describes why to modele and what problems modele to solve. the establishment of model is usually taken by people over the years as a way to solve the system, it can be to design the structure and behavior of the system to communicate with, and the system architecture visualization and control; to establish a better understanding of the model system is constructed, and to provide simplification and reuse opportunities; also can manage risk. The whole system modeling of the system will enable us to have a full understanding. Thus the introduction of this paper to establish the model - IDEF family model. IDEF is a family structure modeling approach, this chapter was mainly concerned with methods of IDEF family IDEF0 modeling method and IDEF3 two. IDEF0 is a modeling system, IDEF3 process of system modeling. As a result of the function of the system and process modeling are described in the characteristics of system behavior, so in practical applications IDEF0 and IDEF3 often complement each other and helping each other, the common behavior of the system modeling.the fourth part tells that study the actual situation based on the Y factory. an analysis of existing and is in urgent need to solve the problem, and then under the product development process, according to APQP product development process of thinking of the design of the control of a pre-planned product quality control procedures . Then, according to APQP product development process was divided into five phases, in accordance with the control procedures designed a product development process of the functional classification map, as function of IDEF modeling as a foundation. Functional classification based on the use of IDEF modeling functionality to all parts of this modeling, an important stage of the process modeling since the aim is to make the product development process from the macro to the micro-described more specifically. Finally, the establishment of IDEF3 models, product and process of the confirmation stage, feedback to correct the phase of the process flow description, so that is closely related with the actual production of these two stages in terms of logic and time has been very good to add.The fifth part unuder the fourth part of the modeling based on actual production, the first stage of project development starting point, in accordance with the description of IDEF0 A1 plans to carry out the specific implementation; and then the process of design and development phase, in accordance with the IDEF0 A3 and IDEF0 A32 model description describes how product development and failure mode analysis of the processes of high RPN change measures; product and process followed by the confirmation stage, in accordance with the IDEF0 A4 maps and IDEF3 model of the stages of the product from the sample to the pre-production phase of a specific description of the whole process and the formation of the customer satisfaction of PPAP.The sixth part is the concluding part, summed up the APQP and other quality control methods in the production process of the specific application of the various stages, making the theory and practice combine fully. IDEF modeling then summed up the significance of the production process, combined with APQP practice together for the production of guidance, for the Y works to solve the practical problems. Finally, the future prospects of the work.To sum up, APQP this mode of production which has been applied in the manufacturing sector, and through the practice has proved that this mode of production is indeed effective. But the problems can not be entirely resolved in advance can to prevent, product innovation, types of changes are a lot of unknown faces new problems. Therefore, the pace of work with the development of the times will never stop.