Implementation of the PDCA continuous improvement cycle (Plan-D0-Check-Act) as a tool for improving the quality of the cast AA5083 alloy produced in the foundry laboratory

Abstract

Production of the high-quality alloy sample using the casting process it is not an easy and simple matter, it is one of the critical difficulties faced by the foundry technologist and researchers. Since the PDCA continuous improvement cycle is a key tool to achieve quality improvement of the product. Therefore, it was applied as an attempt to produce a high-quality cast AA5083 alloy. The main purpose of this paper is to avoid the defects that occur during the production of cast AA5083 alloy using the casting technique, which leads to minimizing product quality. The defects that may take place during the casting process of aluminium alloys have been identified through the literature reviews and taken into consideration to avoid them. The cause-effect diagram (Fishbone-Diagram) was constructed to show the root cause of the defects to avoid them, as well as the PDCA cycle was used to minimize the defects effectively. The results obtained showed that by applying the PDCA continuous improvement cycle and using the quality control tools, the quality of the cast AA5083 alloy can be improved.