【正文】 ucts not the best. SPC for Operators Version – Mar. 10, 202357 SSETMSYVIA若流程能力不足如何辦若流程能力不足如何辦 ?What if a process isn’t capable? 流程需要改善The process needs improvement! 首先 ,采取改善行動 ,減少變異 ,然后 ,按目標(biāo)值將流程表現(xiàn)調(diào)至中間值 .First, take action to reduce the variation. Then, center the process over the target.表現(xiàn)不良 Bad news! 表現(xiàn)改善 Getting better 進(jìn)一步改善 Much better USL LSL Target USL LSL Target USL LSL Target SPC for Operators Version – Mar. 10, 202358 SSETMSYVIA你需要做什么你需要做什么 ?What should you do? USLLSLCp 2 and Cpk 1?采取預(yù)防行動清除不合格產(chǎn)品 Take precautions to remove nonconforming products ?持續(xù)努力減少變異 Continue efforts to minimize variation ?將流程表現(xiàn)控制到中間值 Center the process?維持流程于控制限內(nèi) Maintain process within control limits ?持續(xù)努力減少變異 Continue efforts to minimize variation ?將流程表現(xiàn)控制到中間值 Center the processUSLLSLCp 2 and Cpk 1SPC for Operators Version – Mar. 10, 202359 SSETMSYVIA你需要做什么你需要做什么 ?What should you do? USLLSLCp 2 and Cpk ?維持流程于控制限內(nèi) Maintain process within control limits ?持續(xù)努力減少變異 Continue efforts to minimize variationUSLLSL Cp 2 and Cpk 1?采取預(yù)防行動清除不合格產(chǎn)品 Take precautions to remove nonconforming products ?持續(xù)努力減少變異 Continue efforts to minimize variation ?將流程表現(xiàn)控制到中間值 Center the processSPC for Operators Version – Mar. 10, 202360 SSETMSYVIA你需要做什么你需要做什么 ?What should you do? ?維持流程于控制限內(nèi) Maintain process within control limits ?將流程表現(xiàn)控制到中間值 Center the processUSLLSLCp 2 and Cpk 1?維持流程于控制限內(nèi) Maintain process within control limits USLLSLCp 2 and Cpk SPC for Operators Version – Mar. 10, 202361 SSETMSYVIA失控圖樣失控圖樣 第一定律第一定律Outof Control Patterns Rule 1 任何點(diǎn)超越控制限 Any point beyond the control limits控制上限以外 Outside the Upper Control Limit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 LCL Average UCL 控制下限以外 Outside the Lower Control Limit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 LCL Average UCL SPC for Operators Version – Mar. 10, 202362 SSETMSYVIA失控圖樣失控圖樣 第二定律第二定律Outof Control Patterns Rule 2 連續(xù)七點(diǎn)向上或向下 走勢 Upward or downward run of 7 consecutive points trend 連續(xù)七點(diǎn)向下 Downward run of seven consecutive points 連續(xù)七點(diǎn)向上 Upward run of seven consecutive points 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 LCL Average UCL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 LCL Average UCL SPC for Operators Version – Mar. 10, 202363 SSETMSYVIA失控圖樣失控圖樣 第三定律第三定律Outof Control Patterns Rule 3 連續(xù)七點(diǎn)在平均值以上或以下 偏移 A run of seven consecutive points above the average or below the average shift連續(xù)七點(diǎn)在平均值以上 Run of seven consecutive points above the average 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 LCL UCL 連續(xù)七點(diǎn)在平均值以下 Run of seven consecutive points below the average 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 LCL AverageUCL Average SPC for Operators Version – Mar. 10, 202364 SSETMSYVIA失控圖樣失控圖樣 —— 其它定律其它定律Outof Control Patterns Rule others v One point more than 3 sigmas from center line v Nine points in a row on same side of center line v Six points in a row , increasing or all decreasing v Fourteen points in a row , alternating up and down v Two out of three points more than 2 sigmas from center line (same side) v Four out of five points more than 1 sigmas from center line (same side) v Fifteen points in a row within 1 sigmas of center line (either side) v Eight points in a row more than 1 sigmas from center line (either line)SPC for Operators Version – Mar. 10, 202365 SSETMSYVIA什么是解決問題什么是解決問題 ?What is Troubleshooting? 找出問題的根本原因并采取糾正行動 Looking for the root cause of a problem and taking corrective action.解決問題步驟 : Troubleshooting process: z特別成因 ? Special cause? z作反應(yīng) !按反應(yīng)計(jì)劃采取糾正行動 . React! Follow reaction plan for corrective action. z再次量度 . Take another measurement. z記錄于反應(yīng)計(jì)劃及控制圖 . Document on reaction plan and control chart. SPC for Operators Version – Mar. 10, 202366 SSETMSYVIA解決問題指引解決問題指引Troubleshooting Guidelines z每張控制圖都要有一反應(yīng)計(jì)劃 Each control chart has a reaction plan. z適當(dāng)?shù)奶幚砜蓮氐椎慕鉀Q問題 Proper troubleshooting will close the loop. y受影響的產(chǎn)品 product containment y根本原因 root cause y糾正行動 corrective action y量度 measurement y文件記錄 documentation SPC for Operators Version – Mar. 10, 202367 SSETMSYVIA反應(yīng)計(jì)劃格式反應(yīng)計(jì)劃格式Reaction Plan Format z 標(biāo)題 z Heading z 失控情況 z Process rules (outofcontrol conditions) z 成因 z Causes z 即時行動 z Immediate action z 備注 z Remarks z 簽署 z Signatures z 參考編號 z Reference number z 受影響的產(chǎn)品 z Product containment 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