Since the 1960s, with the rapid development of the world economy and the explosive growth of the population, the global environment has deteriorated rapidly, resources have been exhausted day by day, and the ecological environment has been severely damaged, endangering the survival and development of mankind. Manufacturing is an important aspect of the whole society that consumes resources and pollutes the environment. According to statistics, manufacturing technology accounts for about 60% of the enterprise's productive forces. Because manufacturing produces about 5.5 billion tons of harmless waste and 700 million tons of harmful waste each year, its pollutant emissions account for more than 70% of the total.
The traditional environmental governance method mainly adopts End of Pipe, but there are many drawbacks, such as division of departments, incremental development, high cost, deterioration of economic benefits, inertia of science and technology, etc., which make it difficult to fundamentally realize environmental protection and governance. In order to control environmental pollution from the source, the second law of thermodynamics must be followed at the macro level, industrial ecology principles must be adopted at the meso level, and clean production and green manufacturing must be implemented at the micro level.
Green manufacturing is a modern manufacturing mode, which comprehensively considers the impact of manufacturing industry on the environment and the utilization of resource efficiency. Its goal is to maximize the utilization of resources and minimize the harmful impact on the environment during the whole process of product design, manufacturing, assembly, transportation, sales and use.
Green manufacturing technology is the foundation of green manufacturing technology. Adopting green manufacturing technology can effectively reduce the generation of waste and harmful substances, reduce the impact of processing industry on the environment, save resources and reduce energy consumption, so as to improve the quality of products, reduce the cost of products and make products have greater market competitiveness. As the basic link of manufacturing industry, whether mechanical processing can realize "greening" plays an important role in realizing green manufacturing, clean production and sustainable development.