การลดของเสียในกระบวนการประกอบแขนจับของหัวอ่านฮาร์ดดิสก์ไดร์ฟโดยใช้เทคนิค ซิกซ์ ซิกม่า

Abstract

The study investigated the process improvement in manufacture of Arm coil actuator products by Using Six Sigma Techniques. The objective of this study was to reduce the defects rates by 50%. In order to accomplish the result, several statistical and quality improvement tools have been used. As the initial step, we used Pareto chart to identify problems that appear in manufacturing; which focused on the highest value defects. Then the measurement of the amount of variation was analyzed by GR&R Attribute. Fish bone diagram together brainstorming Techniques to compile factors. Which screen by Cause and effect matrix diagram and then analyzed by Hypothesis test for reject The case not concern, The design of experiments has been carried out to factors relationship with defects ratio.Applied the Response optimizer Function in method finding best condition of process. The control phase applied to use control chart for maintenance factors condition. The findings indicated that the most-produced Arm coil actuator .Brink-2H had highest defects rate in process solder pin insert by 1.51%. After conducting the six-sigma principle, a reduction of about 50% in the amount of defects was achieved ,which resulted in reducing defect ratio in Solder pin insert process from 1.51% to 0.58% or defect reduce from current 61.7%. And Process yield of solder pin insert process increased from 98.49 % to 99.42%.