A Sustainability Index for the Evaluation of Machining Operations

Abstract

The manufacturing plants have carried out efforts towards a greater environmental commitment. Many variables involve in the manufacturing processes, as the machining, and for this reason to know the contribution of these variables can contribute to get better practices. The present work exposes an index of integrated sustainability for the evaluation of the machining operations, in particular in the drilling. This index considers energy aspects of the process, as well as the surface quality of the part and the life of the cutting tool, and allow the optimization through of an interaction algorithm, based on the process cut-off parameters. The theoretical development has been contrasted with experimental data. The cutting parameters obtained from the sustainability index, does not correspond to the most economic option or the fastest, but allows that all the variables of the study simultaneously (roughness, time, cost, tool life and energy) obtain a better commitment.

Sustainability Enhancement in Machining of DTC Titanium Alloy through Integrated Impact Assessment of Various Lubrication Strategies

“…The word "sustainability" refers to combining economic, environmental, social, and quality criteria into a single index that measures the process or product's long-term viability. A sustainability index for machining operations was proposed by (2), which evaluates the index as a sum of the ratio of optimum parameter value to its initial value. The parameters used in the evaluation are cutting energy, tool life, and surface roughness.…”