LCA of machine tools with regard to their secondary effects on quality of machined parts

Machine tools are considered important sources for environmental unconsciousness because of the many environmental emissions during machining operation. However, machine tools are also responsible for the unconsciousness of the parts they produce which we call "the secondary effect of machine tools on environment". We propose a new concept to evaluate the LCA of machine tools with respect to their secondary effects on the quality of machined parts. Through several simulations, it is confirmed that the secondary effects of machine tools are meaningful for eco-design of machining processes and that the proposed method is applicable to LCA of different machine tools