Lean production as a tool for Sustainability using Six-Sigma and VSM framework in manufacturing industry

This study includes a methodology for implementing the combination of lean, green and social assessment of a manufacturing cell in a combination of six-sigma (DMAIC, SIPOC) and Value Stream Mapping (VSM) framework. this study is to reduce the bottlenecks present in the machining process. A work order, though it is simple or complex takes multiple days to undergo processing. This time delay is mainly due to the idle time present at each stage of the process. The machining process has a number of sub processes like cutting, forging, CNC operation, VMC operation, deburring and packing. The objective of this study is to identify the time taken for each process and reduce the idle time. For this case, time, motion and method study have been made to identify and debug the bottleneck. The principles of SMED has been applied in order to enhance the study. Applying this methodology will improve the economic, environmental and social aspects of manufacturing cells.