การเพิ่มผลผลิตในการเชื่อมชิ้นส่วนยานยนต์: กรณีศึกษาการออกแบบอุปกรณ์จับยึด บริษัท โปรเกรส พาร์ท แอนด์ ได จำกัด

Abstract

Progress Parts and Dies Co., Ltd. manufactures brake clamp parts for major automobile manufacturers in the country. They receive an order for 45,000 pieces per month. The final production step involves using a robotic arm to weld 4 pieces per batch, production cycle time 109 seconds, using 2 machines and 2 operators, with the initial production capacity at 1,056 pieces per day and a productivity rate of 132 pieces per hour per person. The objective of this research is to improve the production process. It was found that one operator can control 2 machines. Using the 5W1H technique, researchers designed and added another set of workpiece holders, allowing continuous work without waiting for the robotic arm to finish welding. The improvement results showed that the worker utilization increased from 45.87% to 200%, an increase of 154.13%. Machine utilization increased from 56.73% to 94.91%, an increase of 38.18%. Production capacity increased from 1,056 pieces per day to 1,952 pieces per day, an increase of 84.84%. Productivity increased from 132 pieces per hour per person to 244 pieces per hour per person, an increase of 84.84%.