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  本文選題：六西格瑪　切入點：項目管理　出處：《中國科學(xué)院大學(xué)（工程管理與信息技術(shù)學(xué)院）》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：生產(chǎn)報廢是緊固件企業(yè)大批量生產(chǎn)過程中面臨的一個重要問題,而解決這個問題需要對各工序進行分析并逐條解決以實現(xiàn)降低報廢率的目的。在A公司緊固件產(chǎn)品生產(chǎn)制造過程中一直以來都是純粹的依賴于操作工的經(jīng)驗；而經(jīng)驗往往是因人而異,在改善的過程中需要進行長時間的摸索和進行多種測試,勢必會在一定程度上增加產(chǎn)品成本,因此為了在國內(nèi)外競爭環(huán)境中取得優(yōu)勢,提高客戶滿意度,A公司將推行六西格瑪管理方法作為近些年的公司戰(zhàn)略。 本文針對降低A公司緊固件產(chǎn)品制程中的缺陷率項目為例,運用六西格瑪管理的相關(guān)方法進行改善,通過對DPPM(每百萬缺陷數(shù))報表和缺陷統(tǒng)計報表分析,確認造成高報廢率的主要原因。按照六西格瑪?shù)腄MAIC改善方法5個階段分步實施,在定義階段成立六西格瑪改善團隊,進行改善的成本收益評估,完成項目立項表。在測量階段詳細分析工序流程,識別關(guān)鍵步驟,應(yīng)用SIPOC(高端程序圖)找出關(guān)鍵輸入因子,然后通過魚骨圖法和加權(quán)排列圖法對輸入因子進行過濾,同時對測量系統(tǒng)進行評估分析,判定測量系統(tǒng)是否滿足要求。在分析和改善階段,首先采用假設(shè)檢驗分析我們在測量階段所找到的輸入因子是否合理,同時應(yīng)用實驗設(shè)計方法發(fā)現(xiàn)不同因素對應(yīng)結(jié)果的效應(yīng)關(guān)系,進而建立數(shù)學(xué)模型,找到適用的優(yōu)化參數(shù)設(shè)置方法。在控制階段針對改善方案進行了文件化和標(biāo)準(zhǔn)化,確保改善措施的持續(xù)實施。該六西格瑪改善項目的實行取得了預(yù)期的經(jīng)濟效益,同時產(chǎn)品合格率的提升也滿足了客戶的期望,提高了產(chǎn)品競爭力和客戶滿意度,證明了六西格瑪在公司內(nèi)部具有很好的應(yīng)用和推廣價值。
[Abstract]:Production scrapping is an important problem in the mass production of fastener enterprises. To solve this problem, it is necessary to analyze each process and solve it one by one in order to achieve the goal of reducing the scrap rate. In the manufacturing process of fastener products in company A, it has always been purely dependent on the experience of operators. However, experience is often different from person to person. In order to gain advantages in the competitive environment at home and abroad, it is necessary to carry out a long period of exploration and a variety of tests in the process of improvement, which is bound to increase the cost of the product to a certain extent, in order to gain an advantage in the competitive environment at home and abroad. Improve customer satisfaction A will implement six Sigma management as a company strategy in recent years. Based on the example of reducing defect rate in fastener process of company A, this paper uses six Sigma management method to improve the defect rate, and analyzes the DPPM (defect per million defect) report and defect statistic report. Recognizing the main causes of the high scrap rate. In accordance with the six Sigma DMAIC improvement method, which was implemented in five stages, a six Sigma improvement team was established in the definition phase to conduct an improved cost-benefit assessment, In the measurement stage, the process flow is analyzed in detail, the key steps are identified, the key input factors are found by using SIPOC (high-end program diagram), and then the input factors are filtered by fish bone map and weighted arrangement chart. At the same time, the measurement system is evaluated and analyzed to determine whether the measurement system meets the requirements. In the stage of analysis and improvement, the hypothesis test is first used to analyze whether the input factor we found in the measurement phase is reasonable. At the same time, the experimental design method is used to find out the effect relation of the corresponding results of different factors, and then the mathematical model is established, and the suitable optimization parameter setting method is found. In the control stage, the improvement scheme is documented and standardized. Ensure the continuous implementation of the improvement measures. The implementation of the six Sigma improvement project has achieved the expected economic benefits. At the same time, the increase in the qualified rate of the products has also met the expectations of customers, improved product competitiveness and customer satisfaction, It is proved that six Sigma has good application and promotion value in the company.
【學(xué)位授予單位】：中國科學(xué)院大學(xué)（工程管理與信息技術(shù)學(xué)院）
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：F273;F416.4

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