Application of Six Sigma for Welding Defect Identification and Rectification

Welding quality depends on materials, joint preparation, equipment, qualified procedures, operator competence and inspection. A production team may see porosity, undercut, lack of fusion or dimensional nonconformance and want to reduce costly rework. Six Sigma can help structure that investigation, but statistical process improvement does not replace an applicable welding code, an approved welding procedure… Read More »

What You Need to Know About Six Sigma & Lean Six Sigma

Six Sigma and Lean Six Sigma are related approaches to improving processes, but they solve different classes of problems. Six Sigma emphasizes measuring variation and reducing defects relative to a customer’s requirements. Lean emphasizes flow, delays, unnecessary movement, excessive inventory, rework, and other activities that do not add customer value. Used together, they help a… Read More »