statisticalprocesscontrol(英文版)(已修改)
2025-04-06 00:15 本頁面
【正文】 Statistical Process Control Statistical Process Control ? Variability exists in everything people, machines and nature ? Purpose to be sure that processes are performing in an acceptable manner – monitor over time – forecast if will still be well in future – determine factors that make it out of control Statistical Process Control ? Design quality checks into the process eliminate need for inspection – build better product during design – make product withstand variation Taguchi Method History ? Prior to IR craftsmen were responsible for entire process pride of workmanship ? During 1920’s W. Shewart of Bell Labs build Control Charts ASQ formed ? During 1950’s Deming introduced QC techniques to Japanese – 1961 Feigenbaum wrote Total Quality Control Statistical Process Control ? Two main subjects – Acceptance Sampling test random samples of finished goods and accept or reject whole lot – Process Control sample process output at different points in time see if process is in control determine cause of outofcontrol behavior Statistical Process Control ? Monitor the production process in one of three places before, during or after ? Phy
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1