Application of Value Stream Mapping for Increasing Efficiency of Ceramic Production

การประยุกต์ใช้สายธารคุณค่าในการเพิ่มประสิทธิภาพการผลิตเซรามิก

Abstract

         This research aims to study the production process of ceramic leaf-and-flower glassware. and to improve the efficiency of the production process through value stream mapping, to reduce the production process time, and to increase the production capacity in the manufacturing of ceramic leaf-and-flower glassware on value stream mapping principles include the study of industrial workflow, the warehouse location system, and the process improvement using the ECRS principles, which the study of the production process through value stream mapping revealed the steps involved in the production process. It is divided into six pre-firing steps and four assembly firing steps. The total time for the steps in the value stream before the improvement was 346,582 seconds. After the improvement, by repositioning the mold shelves and creating new molds for the glass and flowers, the total time in the value stream was reduced to 312,247 seconds, representing a 9.91% reduction. For the pre-firing steps, which were part of the process improvement, the working time before the improvement was 137,481 seconds. After the process improvement, the working time was reduced to 103,134 seconds, representing a 24.98% reduction. As a result, the production capacity of ceramic leaf-and-flower glassware increased from 3,304.93 pieces per year before the improvement to 3,961.62 pieces per year after the process improvement. This is an increase of 656.69 pieces per year, representing a 19.87% increase in production capacity.