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精益六西格瑪在軍工電器產品生產質量管理中的應用研究

發(fā)布時間:2018-04-21 16:45

  本文選題:精益生產 + 六西格瑪管理方法。 參考:《東北農業(yè)大學》2015年碩士論文


【摘要】:精益生產和六西格瑪管理方法是當今國內外企業(yè)中最常用的兩種管理思想,也是近年來國內外企業(yè)界大量實踐的兩種行之有效的管理方法。兩種管理方法在各自的領域無論是管理方面還是實踐方面,都有著顯著的成就。但是隨著管理科學的發(fā)展,如何將兩種管理方法整合成一套系統(tǒng)的管理方法,成為國內外學者重點研究內容。兩種管理方法雖然具有不同的側重點,但其優(yōu)勢互補。因此兩者的結合將會有更廣闊的前景,為企業(yè)創(chuàng)造出更大的價值,贏得更強的競爭力。本文在對精益六西格瑪方法進行闡述的基礎上,針對某軍工電器制造廠(下面簡稱H)當前輪式坦克程控箱生產實踐中存在的問題,如生產周期過長、報廢率及返修率高等,導致生產任務不能如期完成、交貨期拖延等現象對生產流程進行精益六西格瑪改善。結合H企業(yè)的生產現狀,將精益六西格瑪方法運用到H企業(yè)程控箱生產質量管理中,實現改善生產線質量現狀的目的。主要研究內容如下:首先,闡述了在市場競爭日益激烈的大環(huán)境下,制造型企業(yè)面臨著巨大的挑戰(zhàn),為了在市場的大環(huán)境中占據主導地位,企業(yè)必須加強質量的控制,同時完善生產管理系統(tǒng)。本文介紹了精益六西格瑪的發(fā)展情況,并對精益生產和六西格瑪結合現狀做出分析。其次,運用了DMAICⅡ的方法,與傳統(tǒng)的六西格瑪DMAIC方法相比,將精益生產的思想融入到其實施階段,提出了改善項目的實施流程。定義階段通過對大量客戶反應的程控箱生產未能及時交貨及質量缺陷,確定了“改善程控箱生產現狀”的項目,確保交貨的及時性。然后本文著重研究A程控箱作為改善項目,對A程控箱的價值流程圖進行分析,找出增值與非增值部分,并指出A程控箱的質量缺陷嚴重影響著生產效率的提高。確定了改善生產流程及質量作為目標。測量階段對程控箱生產過程進行數據收集,并對實驗數據系統(tǒng)的性能進行研究分析。。分析階段通過對生產現狀的診斷及質量影響因素的分析,指出改善方向。改善階段對工序進行重組并通過試驗設計(DOE)選取中心點進行了全因子實驗和調整,對實驗得出的最佳組合進行生產驗證,A程控箱的合格率由87.2%提高到93.82%。顯著的提高了焊接合格率,滿足了公司設定的質量要求。從而證明了本文所提出的精益六西格瑪的實施流程及方案是有效且實用的.最后,對精益六西格瑪的發(fā)展進行了分析和展望,明確了精益六西格瑪方法在今后的發(fā)展領域及方向。本文在理論的基礎上,通過自身實習的企業(yè),結合理論方法,將理論知識運用到實踐當中,發(fā)現并嘗試解決問題。
[Abstract]:Lean production and six Sigma management methods are the two most commonly used management ideas in enterprises at home and abroad, and they are also two effective management methods which have been widely practiced in domestic and foreign enterprises in recent years. The two management methods have made remarkable achievements in both management and practice. However, with the development of management science, how to integrate the two management methods into a set of systematic management methods has become the focus of domestic and foreign scholars. Although the two management methods have different emphases, they complement each other. Therefore, the combination of the two will have a broader prospect, create greater value for enterprises and win stronger competitiveness. Based on the elaboration of Lean six Sigma method, this paper aims at the problems existing in the production practice of wheeled tank program control box in a certain military electrical appliance factory (hereinafter referred to as H), such as long production cycle, high scrap rate and high rework rate. Causes the production task to be unable to complete as scheduled, the delivery time delay and so on the phenomenon carries on the Lean six Sigma to the production process to carry on the Lean six Sigma improvement. The Lean six Sigma method is applied to the production quality management of program control box in H enterprise in order to improve the quality of production line. The main research contents are as follows: first of all, under the increasingly fierce market competition, manufacturing enterprises are faced with enormous challenges. In order to occupy the leading position in the market environment, enterprises must strengthen the quality control. At the same time, improve the production management system. This paper introduces the development of Lean six Sigma and analyzes the present situation of Lean production and six Sigma combination. Secondly, compared with the traditional six Sigma DMAIC method, the method of DMAIC 鈪,

本文編號:1783257

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