Anshu Kumar

K.K. Sahu

Rakesh Kumar Malviya

Abstract

The objective of the study is to reduce the process potential failures and to prioritize the risk of failure of sub assembly of camshaft. A Process Failure Mode and Effects Analysis (PFMEA) methodology is used for risk investigative technique for potential process failure before it happens. PFMEAs focus on preventing failures, enhancing reliability and increasing customer satisfaction. It established a ranked list of potential failure modes, thus rating a priority system for corrective action considerations. Various possible causes of failure and their effects on sub systems have been evaluated for minimizing the failure of the manufacturing or assembly process. Generally, risk prioritization in PFMEAis carried out by using risk priority numbers (RPNs) which can be determined by evaluating three factors: occurrence (O), severity (S) and detection (D). Based on this parameters, some suggestion are proposed to avoid potential failure risks and, ultimately, to reduce the loss of time, quality and productivity.

Keywords- PFMEA, Severity, Occurrence, Detection, RPN, Sub-assembly of camshaft