*PG student,
**Professor,
It is very important improve and maintain the quality of manufactured products now a days to survive in global or local market. Some quality control tools have been applied to one of the leading coach manufacturing industry, located in norther India. The Pareto chart, Fishbone diagram etc. have been applied to find the root causes of failures of components and improving the quality of manufacturing products. It has been established that the organization has numerous issues particularly in dismissal and modifications in the assembly lines. Various processes like CNC cutting, welding, machining, assembly of parts are involved, where probability of defects are more and improvement is required. Pareto chart shows that fault in control arms accounted for 35.3%, while Ankerlink block accounts for 29.35% and gap between pair of control arms are approximately 19%.
Quality Control Tools, Pareto chart, Cause & Effect Diagram, Railways coach manufacturing