美資企業(yè)品質管理培訓資料(英文版)-資料下載頁
2025-02-11 09:02本頁面
【正文】 4 6210 3 66,807 2 308,537 Process Defects Capability Opportunity Sweet Fruits ( Perfect Design) Bulk of fruits ( Optimization) Lower fruits ( 7 QC tools) Ground fruits ( Straight viewpt) 11 6 Sigma ConceptI 3 Sigma Level Company 6 Sigma Level Company ? 10 ~ 15% of sales is failure cost ? Having 66,807 defects per Million ? Depends on the detection of defects ? Believes that high Quality is expensive ? Doesn’t follow systematic approach ? Benchmarking against peting panies ? Believes 99% is good enough ? Defines CTQ’s internally ? 5% of sales is failure cost ? defects per Million ? Focus on process not to produce Defects ? Believes that high Quality creates low cost ? Uses DM AIC Know how ? Benchmarking to be the Best in the World ? Believes 99% is unacceptable. ? Defines CTQ’s from customer point of view 11 6 Sigma ConceptII 3 Sigma Level Company 6 Sigma Level Company ? 54,000 wrong drug prescriptions /year ? Unsafe drinking water 2hrs/ month ? No telephone service for 27 min / week ? 5 Short or long landings at the heathero airport in a day. ? 1,350 incorrect surgical operations / week. ? 54,000 lost articles of mail loss / hr. ? 1 wrong drug prescription in 25 years. ? Unsafe drinking water for 16 years. ? No telephone service for 6 sec for 100 years ? 1 short or long landings at Heathero airport in 10 years. ? 1 incorrect surgical operation for 20 years. ? 35 lost articles of mail / year. 12 6 Sigma Concept ( Aspect of tools) Steps Tools Definition Measurement Analysis Improvement Control 1) Process Mapping 2) Logic Tree 3) Pareto Analysis 4) QFD , FMEA 5) Gage RR 6) Rational subgroupings 7) Process Capability 8) Hypothesis Testing 9) Regression 10) Graph analysis 11) DOE( Design of Experiment 12) Direct Improvements 13) SPC 13 Understanding Basic concepts of Statistics “Z “ is the measure of process capability ? Z=3 ? Z=6 1σ μ 2σ 3σ LSL USL 1σ μ 2σ 3σ LSL USL 4σ 5σ 6σ There are equal no Of on both sides So for Z=3, the tolerance Band is divided into For Z=6 , the tolerance Band is Divided into 12 As number of increases The curve narrows down so Process capability increases Thus defect decreases. Cp Cpk 謝謝觀看 /歡迎下載 BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH
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