Coolants made of native ester — technical, ecological and cost assessment from a life cycle perspective

Machining evaluation of a hybrid MQL-CO2 grinding technology

“…More recently, Aurich et al (2008) presented a novel approach to the problem based on the development of a superabrasive electroplated grinding wheel with a defined grain pattern for dry surface grinding. Since complete Nomenclature a e depth of cut, mm v w workpiece speed, m/min v s grinding wheel tangential speed, m/s v p plunge speed, mm/min b s grinding wheel width, mm l g geometric contact length, mm L c real contact length, mm F t tangential force, N F n normal force, N F t 0 specific tangential force, N/mm F n 0 specific normal force, N/mm m force ratio V s 0 specific volume of grinding wheel wear, mm 3 /mm V w 0 specific volume of material removed, mm 3 /mm G grinding ratio Q w material removal rate, mm 3 /s SME small and medium enterprise elimination of grinding fluids is still limited by important problems, an eye must be kept on the development of alternative coolants with minimum environmental impact, like those reported by Herrmann et al (2007). A promising alternative to dry grinding can be found in MQL techniques and cryogenic cooling.…”

Eco-Friendly, Non-Toxic Cutting Fluid for Sustainable Manufacturing and Machining Processes

“…A major issue lies in their inappropriate disposal, which results in surface water and ground water contamination, air pollution, soil contamination and consequently, agricultural products and food contamination [3,4]. Even when cutting fluid disposal is managed properly, the cutting fluid associated with chip removal can create problem [5]. Mineral oil based formulations can cause ground water pollution up to 100 years and it can reduce the growth of plants and life span of aquatic life [6].…”

Ecologically Benign Lubricants – Evaluation From a Life Cycle Perspective

“…After utilization in machining the coolants and the resulting oily swarf require special and expensive waste treatment. Total Life Cycle Management of coolants means among others to [2,4]: i) apply the strategies sufficiency, efficiency and substitution for machining operations and ii) consider the entire life cycle of the coolant.…”

“…Especially grinding processes still depend on the use of coolants. Thus, it is of great interest to replace mineral oil in coolants by renewable resources that have a better ecological life cycle performance with less toxicity and oily swarf [4,5].…”

“…But in addition to process capability the focus is extended to a wide range of exigencies which are integrated into the life cycle model (e. g. optimized use and handling, recyclability). Hence, three analysis tools -the technical, ecologic, and economic assessmentare vital elements to find alternative coolants as substitutes for mineral oil and increase sustainability in manufacturing [4,5].…”