Reducing waste in the production of aluminum glass frames

Abstract

The objective of this study was to reduce waste in the aluminum glass frame manufacturing process. aluminum pole types formed in the process of cutting aluminum workpieces. punching aluminum workpieces and notch aluminum workpieces from CNC machines using quality control tools (QC Tool) to find the cause and to improve the quality in the production process February 2021 to March 2021, from the data collection of waste generated in all 3 production processes for the period from November 2020 to January 2021. It was found that there were 5,061 pieces of aluminum glass frame manufacturing waste, or an average of 4.4% per month which is worth 3,036,600 baht per month There is a problem with cutting the workpiece in the distance and degree.the hole distance does not match the center as specified and notching the workpiece that is deeper than the model This study therefore proposed a predictive maintenance system Preventive maintenance and jig fixture design to reduce waste in the existing production process.

The improvement effect can reduce the incidence of aluminum column type waste caused by non-degree cutting. Drilling the workpiece out of the center and notching the workpiece that is deeper than the specified from an average of 4.4% per month, down to 1.7%, down to 61.36% and based on the amount of waste reduced from 5,061 pieces, reduced to 1,111 pieces, can reduce 3,950 pieces There is an average cost savings of 2,370,000 baht (1 piece, average 5 Kg) in the past 2 months If the amount of annual loss is calculated, it is 14,220,000 baht per year.