six-sigmatrainingbook(存儲(chǔ)版)
【正文】 cess is centered between the specification limits.Process is centered Process is not centered40BPTL Confidential 6σ推行教材工序表現(xiàn)The Cpk index relates the scaled distance between the process mean and the nearest specification limit.41BPTL Confidential 6σ推行教材工序表現(xiàn) Cpk 不良率 – % – % – % – ppm – ppm – ppm 794 – 1589 ppb 170 – 340 ppb 33 – 67 ppb 6 – 12 ppb 1 – 2 ppb 42BPTL Confidential 6σ推行教材工序表現(xiàn)a)工序能力高 (Cpk)b)工序能力可 (Cpk=1 to )c)工序能力差 (Cpk1)a)Cp = 2Cpk = 2b)Cp = 2Cpk = 1c)Cp = 2Cpk 143BPTL Confidential 6σ推行教材工序潛力與工序表現(xiàn)(a) Poor Process Potential (b) Poor Process PerformanceLSL USLLSL USLExperimental Design? to reduce variationExperimental Design? to center mean? to reduce variation44BPTL Confidential 6σ推行教材工序潛力與工序表現(xiàn)a)Cp = 2Cpk = 2b)Cp = 2Cpk = 1c)Cp = 2Cpk 145BPTL Confidential 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。 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)有賴于我們多大程度上讓我們的客戶滿意 .?客戶滿意才能體現(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 deli
語(yǔ)文相關(guān)推薦
鄂ICP備17016276號(hào)-1