Abstract
In response to the environmental issues triggered by global warming, worldwide companies gradually put the factor of carbon emission into the process of product lifecycle, developing green technology or adopting cleaner production aimed at sustainable development. Lean Six Sigma has advantages of cutting waste and facilitating process improvements as well as system analysis, helping enterprises create the overall business benefits in the value chain. Used in the renewable energy industry, it can promote the triple bottom line (TBL), the performance of sustainable production for corporate profit, social responsibility and environmental responsibility. Therefore, this work took the process performance of the electric scooter water-cooling green motor manufactured in Taiwan with the world’s highest density of scooters as a case study. The developed performance evaluation and improvement model for manufacturing scheduling and process quality achieved the goal of economic benefits of enhancing process quality performance by shortening manufacturing scheduling and reducing process variations with Lean Six Sigma. Besides, they could respond to the policy of energy saving and carbon reduction – replacing the traditional scooters of high-carbon emissions with the electric scooters of low emissions. Furthermore, they could bring enterprises into harmony with economic benefits, ecological benefits and social benefits.
Highlights
According to the research done by Folster (2010), Dejan (2013), and Almer and Winkler (2017), the awareness of environmental protection has been continuously rising from the Kyoto Protocol of 1997 to the present 21st century
Lean Six Sigma is used as an analytic method, and the DMAIC procedure of Six Sigma is used as a framework, to develop a process performance evaluation and improvement model for an electric scooter water-cooled green motor assembly
According to the abovementioned manufacturing performance evaluation chart, it was discovered that the critical factor which led to ill performance of the electric scooter green motor assembly process was the motor rotor circle diameter, whose process capability and manufacturing scheduling both failed, so the process should be reviewed and improved
Summary
According to the research done by Folster (2010), Dejan (2013), and Almer and Winkler (2017), the awareness of environmental protection has been continuously rising from the Kyoto Protocol of 1997 to the present 21st century. According to Chen and Lyu (2009), Jacobs et al (2015), Garza-Reyes et al (2016), Thomas et al (2016), Cherrafi et al (2017), and Bellisario & Pavlov (2018), Lean Six Sigma is a combination of lean production and Six Sigma thoroughly eradicating non-value-added waste and shortening the time of process It can help reduce the variation in the manufacturing process as well as the product defect rate (Srinivasan et al (2016)). Introduction to the analytic structure and process of the electric scooter water-cooling green motor assembly
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