Six Sigma Dmaic Improvements Method Used In Anodization Process

The Six Sigma is a new kind of management method, or it can also be regardedas a creative program instead of technique project.There are many studiesand cases at home and abroad which have proved that the Six Sigma managementis an effective project-improvement method, which is major used to improvecurrent procedure,i.e.take corrective action against the root cause of defecthappened in product or process to improve procedure continuously.With theapplication of DMAIC,this essay is focused on the study of improving theabnormal phenomena in anodizing.Firstly,in accordance with the actuality analysis,with the start of projecttarget definition and determination and setting up of department projectgroup,combining with the anodic treatment process and matters needingattention,the essay deduced the unusual cause with the help of SIPOC flowchart, Pareto CTQ etc. Secondly, measuring with flow chart, MSA, this essayanalyzed the root cause with the help of cause-and-effect diagram, ANONA,FMEA etc.Thirdly, applying DOE method to design orthogonal list,contour line,surface chart,the essay made comprehensive analysis in residual error andvariance and find out the most key input variables such as temperature,time,sulfuric acid phosphate,percentage of Alions.And finally,the essay comparedthe influence of the different variables to the results then designed outthe optimal production process,which greatly improve the acceptance rate andthus meet the customers’requirements.The essay aimed at the issue of anode surface treatment processing for3Cproducts With the help of Six Sigma management method,the settlement of anodeoxidation chemical polishing problem,reduced the losing cost effectively,increased product competition and customer satisfaction.It can be used asreference to those companies who have the similar problems.