The Research And Application Of Quality Cost Management Based On The Six Sigma

The quality is the summation of product or the service satisfies the request characteristic. We can feel the importance of the quality from ours daily life. But is not for guarantee the quality needs not hesitate all prices? Research quality cost is study the connection between the quality and the cost, the final goal is the total cost of spend on the product least. The quality cost is the expense which maintains the product quality in the stipulation quality level."Sigma"is representative "the standard dispersion"in statistics domain uses for to express the material dispersion degree. In six sigma management, have specifically meaning, it is a sort of statistics tolerance. If achieve six sigma level, well then appears the possibility that does not conform to the requirement or has the flaw is only 3.4/1000000.Six sigma is a actualize principle and technical which can strict, centralized and efficient ameliorate enterprise flow management. It contains a lot of advance productions; pursue"zero bugs", impetus quality cost large scale reduces.The third chapter is compare between quality cost base on six sigma and traditional quality cost, obtains the difference and the relation in the idea and the content, index the aim of six sigma quality management is increase gain, the centre of six sigma management is buyer, and the quality cost base on six sigma contains direct poor cost and indirect poor cost, or divides the quality cost into the control cost (prevention cost, appraisal cost) and the loss cost (direct loss cost, indirect loss cost; And bring forward question to the traditional best quality cost model, infers best quality cost model based on six sigma. educe difference and relation between two quality cost model(1) C(λ),whenλâ†'1, C(λ)is a constant. This indicates that if want achieve quality level of "tends to 0 flaws", the quality investment is not infinity.(2) L(λ),whenλ=1,L(λ)is the latest, but is not zero. The expression even if the products "tends to 0 flaws" also have the society loss (for example electrician product energy consumption).And consider intangible asset loss in environment, prestige and so on.(3)W(λ)obtains the minimum value is not necessarily in the point of intersection of the C(λ)and L(λ), but according to the concrete condition to obtain.(4)Strengthen the maneuverability, the enterprise can obtain the curve of C(λ)å'ŒL(λ)through the statistical data , then obtains the curve and its minimum value of W(λ).The fourth chapter is actual utilizes six sigma DMAIC flow to optimize enterprise's quality cost. First, identify the product of need to improve, and then evaluate the key steps ,the use of effective tools and methodologies, based on existing data and process analysis of the incident to establish the reasons for the assumption that identify a small number of key underlying causes as well as the assumptions made for reasons certification; identify solutions and testing solutions and standardization programs, and strive to make the process of defect, or fluctuations to a minimum; After the solution of small-scale tests, and began to implement improvement activities and the implementation of programs to be assessed in a timely manner; Finally establish performance standards assessment activities, the improved process and procedures through effective monitoring process to maintain the improved results, when problems occurred, in time and control. obtained through implements six sigma management, has obtained below benefit: respective workshop productive efficient enhanced 25%; The product waste reduced 15%; Trained and exercised six sigma group, has laid the foundation for enterprise's further development; customer satisfaction degree have big enhancement; enhanced company's competitive ability; has provided the plan for company's further developed six sigma management; accumulated the experience, has provided a model for other departments' improvements .And carries on the confirmation to the quality cost best model.The last chapter is summarizing. Pointed out that six sigma management's development of our country now entered the unprecedented development phase, just started to its research, need our unceasing exploration and the pursue.