正交试验法对异形弹簧加工工艺参数的改进

发布时间：2018-05-11 17:08

本文选题：正交试验设计 + 异形弹簧　；参考：《上海交通大学》2012年硕士论文

【摘要】：随着消费者对市场上产品品质的要求越来越高，导致产品在加工的过程中尺寸精度越来越严。很多企业在提升加工设备的同时，也对工艺参数予以了高度的重视，以提高自身的合格率，同时保持一定的利润空间和市场竞争力。但是在实际的操作过程中，由于缺少科学的研究方法和严谨的理论基础，往往造成投入和产出的极度不匹配，因此引入一种科学的实验方法对提高工艺水平具有很高的指导意义。本文从实际的生产情况出发，全面的分析了异形弹簧在加工过程中的影响因素，并结合现有工厂的实际情况，对这些因素的水平进行了分析，然后应用正交试验的方法对异形弹簧的加工工艺参数进行研究，重点讨论了关键尺寸的关联尺寸，热处理参数和每次研磨数量对产品关键尺寸4.8±0.04mm的影响，通过正交试验的方法进行了实际的数据采集，，并通过对试验数据的分析，给出了最佳加工工艺参数组合。经实际验证后，该关键尺寸4.8±0.04mm的过程能力指数CPK由原来的0.40左右提高到了1.0，极大的提高了生产效率，进一步提升了该产品的效益。
[Abstract]:With the increasing demands of consumers on the quality of products in the market, the dimensional accuracy of the products becomes more and more strict in the process of processing. In order to improve the qualified rate and maintain a certain profit space and market competitiveness, many enterprises attach great importance to the process parameters while upgrading the processing equipment. However, in the actual operation, due to the lack of scientific research methods and rigorous theoretical basis, the input and output often cause extreme mismatch. Therefore, the introduction of a scientific experimental method to improve the technological level has a high guiding significance. Starting from the actual production situation, this paper comprehensively analyzes the influence factors of the special-shaped spring in the process of processing, and analyzes the level of these factors according to the actual situation of the existing factories. Then the machining process parameters of special-shaped spring are studied by orthogonal test, and the effects of key dimensions, heat treatment parameters and grinding quantity on the key dimensions of the products are discussed. Through the method of orthogonal test, the practical data collection is carried out, and the best processing process parameter combination is given through the analysis of the test data. After practical verification, the process capability index (CPK) of the key size of 4.8 卤0.04mm was increased from 0.40 to 1.0, which greatly improved the production efficiency and further improved the benefit of the product.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH135

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