期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：5
页码：3729
DOI：10.15680/IJIRSET.2015.0405127
出版社：S&S Publications
摘要：Gear Box, assemblies and hence quality of its components(referring to gears) play a vital role duringtransmission mechanism. Many issues have occurred and still do occur during the processing of gears especially inareas of Hobbing , Shaving, Heat Treatment processes, etc and best trials have been carried out so as to attain authenticsolutions to the complexities occurred. Oerlikon Fairfield- a gear manufacturing MNC successfully uses Root CauseAnalysis Techniques( PDCA cycle, Cause and Effect Diagram with Shainin Technique combination), DMAIC qualityimprovement Methodology in order to solve the problems encountered during part processing . The present paper dealswith Profile fall/distortion problem occurring after heat treatment process during new development of helical gear.Modern gearboxes are characterized by high torque load demands, low running noise and compact design. In order tofulfill these requirements, profile specifications have to be tightly controlled. Current problem being one of majorquality issues is resolved and controlled by using a combination of Cause and Effect Diagram with Shainin Techniqueand DMAIC-6 sigma break through methodology. Tool modifications being considered as final resort and henceimplementation of modifications of shaving cutter during shaving stage (a pre heat treatment process) helped inachieving the required profile trace within the required post heat treatment process specifications
关键词：Cause and Effect Diagram ; Helical gear; Profile distortion/fall; Root Cause Analysis(RCA); Shaving;Cutter modifications
