Application of Quality Tools for Failure Analysis in Mechanical Systems of Vertical Turret Lathe (VTL), Horizontal Boring Mill and CNC Lathe at BEML Mysore Complex

An attempt has been made in this paper to improve the performance of vertical turret lathe 150, vertical turret lathe 120, horizontal boring mill and a CNC lathe. The study was conducted at BEML MYSURU COMPLEX for a period of 8 weeks and a conclusion was drawn in order to improve the performance and a suitable quality tool was implemented in order to minimize the failure rates at the working centres. The quality tool used for the current study is ISHIKAWA DIAGRAM or normally known as Fish bone diagram. Initially the primary causes for the breakdowns were listed and then the more dominant causes of them were categorized in to 4M’s that is Man , Machine, Method and Material now the causes were finally introduced into the fish bone diagram which directs to the main cause of the breakdown of the machine. After successful generation of fish bone diagram the corrective action for the same was generated and the study was concluded. If the process was not in control, then the assignable causes need to be tackled referring the Cause & Effect Diagram. If it is within control then natural causes need to be focused so that the process will not only be in control but would also be cantered.