Improving Capability in Small Thai Manufacturing Companies

Abstract

Statistical Process Control (SPC) is definitely one of the most powerful scientific methods for process control in manufacturing industry. Application of suitable SPC tools and techniques, e.g., graphical representation, scatter diagrams, variable and attribute control chartsand the assessment ofcapability via suitable indices could help improve and assure product quality and minimize losses due to non-conformity. Application of machine and process capability studies would be really beneficial for small and medium sized manufacturers. Capability assessment involves relatively little cost and effort but can contribute to significant improvement in performance. This paper reviews and explains the background to the application of machine and process capability studies in manufacturing processes. Capability study is also shown to be very useful in the development of a new process or product as well as for ongoing production.