Published Online:November 2024
Product Name:The IUP Journal of Operations Management
Product Type:Article
Product Code:IJOM021124
Author Name:Jagdeep Singh and Harwinder Singh
Availability:YES
Subject/Domain:Management
Download Format:PDF
Pages:27-43
The study examines the use of two out of seven quality control tools of quality management system to reduce rejection during operational and production stages in a car manufacturing company in North India. After observing the process, it was found that the tilting effect defect had been causing major rejection, i.e., 26% rejection rates were observed. An eight-step methodology was adopted to address the issue of quality rejection by defining the problem and removing the root cause of the problem using quality control tools, viz., Pareto chart and Run chart. Locking control of two nuts used in steering wheel was achieved by root cause analysis technique. Descriptive statistics (before and after root cause analysis) were calculated and validation of overall improvement was done by two-tailed paired sample t-test. With reduction in rejection, annual saving of 84,000 p.a. was achieved (rework cost saving of 7,000 per month). Finally, a standard operating procedure was prepared to make the process error-proof.
Continuous improvement approach aims at quality improvement through effective leadership and collective efforts of teams of experts of different departments of the organization. Quality control (QC) tools are used in every stage of production from product development to customer support (Keller, 2005).