Original scientific paper
https://doi.org/10.31306/s.61.2.5
Application of ecological principles in machining
Tihana Kostadin
; Veleučilište u Karlovcu, Karlovac, Hrvatska
Goran Cukor
orcid.org/0000-0002-6767-0960
; Sveučilište u Rijeci, Tehnički fakultet, Rijeka, Hrvatska
Tihomir Mihalić
orcid.org/0000-0002-4249-2627
; Veleučilište u Karlovcu, Karlovac, Hrvatska
Abstract
Most metalworking fluids used for cooling and lubrication in various machining processes are formulated from mineral oils separated from crude oil. Disposal of waste fluids opens numerous ecological issues, especially considering that it is one of the most complex and hazardous waste types. Developing environmental awareness while at the same time adopting new, stricter legal regulations for the protection of natural assets as well as developing health and safety management systems for people at work are increasingly directing the manufacturing industry towards the development and implementation of alternative cooling and lubrication techniques in machining and ultimately dry machining. Thus, today it is already talking about specially adapted machining or manufacturing using the terms "environmentally friendly machining", "sustainable manufacturing", "green manufacturing" and the like. In this paper, the possibilities and advantages of using alternative cooling and lubrication techniques, especially cooling with a vortex tube, are explored. In addition, the machining evaluation was covered by an experimental study in order to understand the likely effects of the use of cooling with the vortex tube on the production costs. The case study concerns the machining of martensitic stainless steel. It is shown that tool costs represent a major contribution to the total production cost and that in comparison with the metalworking emulsion the cooling with the vortex tube offers an economical solution on the route to sustainable machining.
Keywords
sustainable machining; ecology; safety at work
Hrčak ID:
221814
URI
Publication date:
2.7.2019.
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