Quality Control Analysis in the Production of Decorative Resin Lamps Using the Six Sigma and Failure Mode and Effect Analysis Methods

A creative industry company producing resin-based decorative lamps is facing quality issues due to production defects. This study applied the Six Sigma and FMEA methods to identify controls, analyze causes, and propose improvements. Six Sigma reduces defects using the DMAIC approach, while FMEA assesses risks through the Risk Priority Number (RPN). The analysis showed a DPMO of 14,587.89 and a sigma level of 3.7, aligning with industry standards in Indonesia. Key defects included bubbles (57%), uneven surfaces (24%), and cracks (19%). Suggested improvements included training, production evaluations, rotary casting tools, safety measures, and enhanced cleanliness in the sanding area.