基于FTA的超硬磨具生产过程质量风险管理研究

发布时间：2018-05-28 09:57

本文选题：超硬磨具 + 故障树分析　；参考：《兰州交通大学》2017年硕士论文

【摘要】：超硬材料磨具(以下简称超硬磨具)属于国家重点支持的新材料产业产品,被称为“现代工业牙齿”,是一种高速、高效的现代磨削工具,被广泛应用于航天航空、国防军工、电子信息、汽车制造、机床工具、能源交通等精密加工领域。我国虽是超硬磨具生产大国,但由于其多品种、小批量、定制化的生产特点,且大多为劳动密集型手工作业的制造模式,超硬磨具生产质量稳定性差,产品不能完全满足精密加工需求。因此,开展超硬磨具生产过程的质量风险管理研究有十分重要的现实意义。论文从我国超硬磨具企业管理者的角度出发,试图找出有效解决超硬磨具生产过程质量风险问题的管理方法和措施,以提高产品质量,切实降低超硬磨具生产过程的质量风险,注重提高质量管理人员质量风险意识,能够有效促进超硬磨具生产企业质量管理水平,提高产品质量稳定性,为产品“走出去”提供可靠质量保证。论文首先对公司近两年的质量事故记录进行统计分析,得出有记录的质量事故列表及其发生概率;然后利用历史文献和专家知识,结合调查问卷结果初步得出超硬磨具生产过程质量风险因素清单,并根据经验值对事件发生次数进行排序,通过专家讨论修订质量风险因素清单和排序;最后将有记录的质量事故发生概率填入排序表中,根据排序相近概率相近原则,通过专家讨论,对质量风险因素清单和发生概率进行最终修正。根据质量风险因素清单,运用故障树分析(FTA)方法,对超硬磨具生产过程质量风险进行识别,并进行定性和定量分析,得出加工、装卸和转运过程中造成的磕碰、员工看错图纸和模具上压头间隙大等因素是超硬磨具生产过程的主要质量风险因素,通过建立质量管理人员能力需求模型,对人员类质量风险因素提出管控要求,并提出方法类质量风险因素的改进思路。通过超硬磨具生产过程质量风险管理研究,能够使制造企业更加精准地识别质量风险因素,并进行有针对性的分析、评价和应对。从而提高超硬磨具生产过程的质量风险管理水平,进一步增强产品竞争力。
[Abstract]:Super hard material grinding tools (hereinafter referred to as superhard Abrasives) belong to the national key support new material industry products. They are called "modern industrial teeth". It is a high speed and efficient modern grinding tool. It is widely used in aerospace, defense industry, electronic information, automobile manufacturing, tool tools, energy transportation and other precision processing fields. The production of super hard abrasive tools is a big country, but because of its many varieties, small batch and custom-made production characteristics, and most of them are labor intensive handwork manufacturing mode, the quality stability of super hard abrasive tools is poor and the product can not fully meet the demand of precision processing. Therefore, it is very important to carry out the research on the quality risk management of the production process of the super hard abrasive tools. In order to improve the quality of the product, reduce the quality risk of the production process of the super hard abrasive tools, improve the quality risk awareness of the quality management personnel and be able to improve the quality risk awareness of the quality management personnel, the thesis will be able to improve the quality risk of the quality management personnel. It can promote the quality management level of the super hard abrasive production enterprises, improve the quality stability of the products and provide reliable quality assurance for the product "going out". First, the paper makes a statistical analysis on the quality accident records of the company in the last two years, and draws a record of the record of the quality accident list and its occurrence probability; then, the historical documents and the expert knowledge are used. According to the results of the questionnaire, the list of the quality risk factors of the production process of the super hard abrasive tools is obtained, and the number of events is sorted according to the experience value. The list and order of the quality risk factors are revised by expert discussion. According to the list of the quality risk factors and the probability of occurrence, according to the list of quality risk factors, the quality risk of the production process of super hard abrasive tools is identified by the method of fault tree analysis (FTA), and the qualitative and quantitative analysis is carried out to get the knock in the process of processing, loading and unloading, and the employees are mistaken in the drawings and models. The main factors such as the high pressure head clearance are the main quality risk factors in the production process of the super hard abrasive tools. By establishing the model of the quality management personnel's ability demand, the management and control requirements are put forward on the quality risk factors of the personnel, and the improvement ideas of the quality risk factors of the methods are put forward. The manufacturing enterprises identify the quality risk factors more accurately, and carry out targeted analysis, evaluation and response, thus improving the quality risk management level of the super hard grinding process and further enhancing the competitiveness of the products.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG74;TQ163

【参考文献】