Design of Sandblasting Machine to Reduce Waste in the Production of Motorcycle Exhaust Muffler

Abstract

The objective of this research was to design a sandblasting machine for motorcycle exhaust mufflers because of studying the working process in the motorcycle exhaust production process in the factory case study. The waste was found from 1) the employees spent time covering the exhaust muffler for 13 percent of the total time. 2) The cost of the plastic bags used to cover the exhaust muffler was 3.29 baht per piece, and 3) the unnecessary motion was identified. The researcher analyzed the cause with a Why-Why analysis and improved the production process by using ECRS principle. The researcher then used the SolidWorks program 2021 to design the sandblasting machine and enumerated the components of the machine. From the result of the research, a prototype sandblasting machine for motorcycle exhaust mufflers was obtained that solved the problems. The sandblasting system and the mechanical rotation system were key components of the sandblasting design. This prototype can reduce the amount of time to 70 s, reduce the number of employees to 2 people, and reduce costs by 7,890 baht/month.