Analyzing the Process Capability for an Auto Manual Transmission Base Plate Manufacturing

Abstract

The industry today is working intensively on a goal-oriented way towards introducing regular studies in manufacturing. The current study is part of a large overall spanning project aiming towards an increase in productivity, i.e. more products produced per year with availability. In this paper we have analyze what Process Capability is and how it is implemented on a current process. All the steps are listed out in an easy to understand manner. In current scenario, specifications for products have been tightened due to performance competition in market. Statistical tools like control charts, process capability analysis and cause and effect diagram ensure that processes are fit for company specifications while reduce the process variation and improve product quality characteristic. Process capability indices (PCIs) are used in the manufacturing process to provide numerical measures on whether a process is capable of producing items within the predetermined limits. For the analysis purpose MINITAB 16.0 is used and is found that the process is placed exactly at the centre of the control limits. Analysis also shows that process is not adequate. The cause and effect diagram is prepared to found out the root cause of variation in diameter of work. In this study, a process-capability analysis was also carried out in a medium-sized company that produces machine and spare parts.