Statistical Process Control (SPC) applied in plastic injection moulded lenses

Jafri Mohd Rohani, Chan Kok Teng

Fakulti Kejuruteraan Mekanikal, Universiti Teknologi Malaysia, 81310, Skudai, Johor

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(QC 08)

Abstract

In order to survive in a competitive market, improving quality and productiviti of product or process is a must for any company.

Some simple techniques like the “seven basic quality control(QC) tools” provide a very valuable and cost effective to meet those objective.

This paper presents a case study in which a local plastic injection moulding company employs part of the “seven basic quality control(QC) tools” to significantly improved the process yield quality from initial 13.49 % to 7.4 %.

However, to make them successful as cost effective and problem solving tools, strong commitment from top management is desired.