A case study on the application of Mahalanobis-Taguchi system for magnetic component
System integration is one of the elements contributes into the industrial revolution 4.0 also comply with current Malaysia agenda. It is very important for electric and electronic (E&E) industry to classify a better quality to produce accurate profit of magnetic component using an appropriate method. The aim of this work is to apply Mahalanobis-Taguchi System (MTS) developed by P.C Mahalanobis and G. Taguchi in production environment specifically visual mechanical inspection (VMI) at E&E industry. MTS is used to classify normal and abnormal observations and optimize various parameters in workstation to produce better quality product. This work found that positive gain through signal to ratio (SNR) indicated the quality of system still in good condition from January with 0.3298 until December with 0.3667 after insignificant variable have been removed. This work also suggested height of excess plastic header as one of variables in VMI should be removed since the variable does not contribute to the system as shown in 2018. Meanwhile, there are two parameters reduced in March (Number of epoxy spot on winding coil and height of excess plastic header), July and August (Condition of marking and height of excess plastic header) and November (Number of scratches and height of excess plastic header). This concluded that MTS is a practical method for classification and optimization in the industry.
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