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This is a Quantitative Study study.

September 23, 2025Open Access

Reducing Rework in Plastic Extrusion Process in Pipe Manufacturing using DMAIC

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Application of Six Sigma DMAIC reduces rework and improves yield in plastic extrusion, indicating operational efficiency.

A 20% increase in yield from 75% to 95% for grade A products was achieved through DMAIC.
Identified major quality issues included dimensional variation and improper die settings that contributed to rework.
Analysis involved using control charts and Pareto analysis to pinpoint root causes in the extrusion process.
Improvements included enhanced operator training and optimized die settings, thereby reducing waste and scrap.

Pramod et al. (2025) studied this question.

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