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【正文】 fidential 6σ推行教材工序穩(wěn)定性A process is stable if the distribution of measurements made on the given feature is consistent over time.TimeStable ProcessTimeUnstable Processucllclucllcl46BPTL Confidential 6σ推行教材短期工序能力與長(zhǎng)期工序能力短期工序能力 (previously called shortterm capability) shows the inherent variability of a machine/process operating within a brief period of time.長(zhǎng)期工序能力 (previously called longterm capability) shows the variability of a machine/process operating over a period of time. It includes sources of variation in addition to the shortterm variability.47BPTL Confidential 6σ推行教材Within OverallSample Size 30 – 50 units ? 100 unitsNumber of Lots single lot several lotsPeriod of Time hours or days weeks or monthsNumber of Operators single operator different operatorsProcess Potential Cp Pp Process Performance Cpk Ppk短期工序能力與長(zhǎng)期工序能力48BPTL Confidential 6σ推行教材實(shí)戰(zhàn)演練The length of a camshaft for an automobile engine is specified at 600 177。 Cpu 216。 比較 “工序的現(xiàn)狀 ” 與 “客戶(hù)的要求 ”, 均須以規(guī)格為依據(jù)216。 “而且一個(gè)工序在受控 ” 并不一定意味著它是一個(gè)好工序 .29BPTL Confidential 6σ推行教材工序控制與工序能力 2. 工序能力216。 鑒于 “用事實(shí)說(shuō)話(huà) ”,即 一個(gè)人僅需要用源于工序的數(shù)據(jù) 來(lái)判定工序是處于受控狀態(tài) .216。 Normal...Enter ? valueEnter s valueEnter x value正態(tài)分布的一些特性13BPTL Confidential 6σ推行教材什么是 6σ ???14BPTL Confidential 6σ推行教材6σ 簡(jiǎn)介15BPTL Confidential 6σ推行教材The Focus of Six Sigma4Identifying critical aspects of the business with problems or opportunities for improvement.4Targeting those critical areas and designating improvement efforts as Six Sigma Black Belt projects.4Selecting top people to work on the projectsfull time.4Ensuring these people have the time, tools, and resources they need to succeed.16BPTL Confidential 6σ推行教材Customer Focus: A Model For SuccessTechnologyCapabilityCapabilityOrganizationOrganizationPeoplePeopleProcessesProcesses?商務(wù)上的生存競(jìng)爭(zhēng)有賴(lài)于我們多大程度上讓我們的客戶(hù)滿(mǎn)意 .?客戶(hù)滿(mǎn)意才能體現(xiàn)品質(zhì) , 價(jià)格 , 和貨期的意義 .?品質(zhì) ,成本 , 準(zhǔn)時(shí)走貨無(wú)不依耐于工序能力 .What purpose is Sixsigma ? 17BPTL Confidential 6σ推行教材Six Sigma VisionThe Vision of Six Sigma is to delight customers by delivering worldclass quality products through the achievement of Six Sigma levels of performance in everything we do.What purpose is Sixsigma ? Six Sigma PhilosophyThe philosophy of Six Sigma is to apply a structured, systematic approach to achieve breakthrough improvement across all areas of our business. 18BPTL Confidential 6σ推行教材? PPMProcessCapabilityDefects per Million Opp.Six Sigma Aggressive GoalWhat purpose is Sixsigma ? 19BPTL Confidential 6σ推行教材Statistical Definition of nSigmaLSL USLProcess Width?oDesign WidthTscaleLSL USLscaleT+n?scale n ?This is the socalled nsigma Sigma is a statistical unit of measure that reflects process capability. The sigma scale of measure is perfectly correlated to such characte
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