Six Sigma Quality Enhancement of Motors Through a Vibration Measurement System

Abstract

In this engineering research, we apply the Six Sigma discipline to solve problems in realproduction processes at the Seagate technology (Thailand) Rangsit, a manufacturer of spindlemotors in computer harddisks. The objective of this research is to reduce all unnecessary expendituresand watses in such production processes as much as possible. We have improved quality of itsmeasuring system to promote customer confidence. The data is used to build up highly efficientdecision making in production processes. We have also investigated motor vibration which shouldnot exceed 150% ACT. Such investigation aims at finding ways to enhance accuracy and precision.There were four steps in our experiment i.e. measuring phase, analyzing phase, improving phaseand controlling phase. Cheetah 18LP model was selected for such an experiment. We have foundthat the vibration measuring system lack of linearity and precision property. Bearing is a majorcomponent generating the vibration.