"Application of Six Sigma in Thickness Control of Stainless Steel Sheets for a New Startup Manufacturing Company "

Abstract

The paper focuses on the application of Six Sigma methodologies in controlling the thickness of stainless steel sheets manufactured by a company. The industry standard sheet thickness is 5mm with an allowable tolerance of 5.05 mm (USL) and 4.95 mm (LSL). A set of control charts coupled with process capability indices Cp and Cpk was used to assess the stability and performance of the processes. A sample of 20 to 30 stainless steel sheets was selected and the thickness was tested against the customer parameters. The findings proved that Six Sigma methodologies can be successfully utilized in production process quality control.