The Application Practice of PDCA Cycle in Improving Product Quality

Abstract

Under the increasingly fierce competition in the consumer electronics market, product quality has become a crucial element of enterprises' core competitiveness. This study takes "Company A," a small and medium-sized electronic manufacturing enterprise, as a case to address the high defect rate (initially 5.2%) in its smart wristband assembly process. By systematically applying the PDCA cycle for quality improvement, the research identifies core issues such as unstable soldering processes and insufficient standardization of employee operations during the planning phase. Implementation measures include enhanced operator training, equipment calibration, and optimized self-inspection procedures. Verification in the checking phase demonstrates a significant reduction in the defect rate to 2.3%. Effective countermeasures are subsequently standardized into management protocols. The findings reveal that the PDCA cycle enables continuous quality enhancement with low-cost investments, providing a replicable practical framework for quality management improvement in small and medium-sized enterprises.