The Impact of fluid supply on energy efficiency and process performance in grinding

Heinzel, Carsten; Kolkwitz, B.

doi:10.1016/j.cirp.2019.03.023

Cited by 18 publications

(5 citation statements)

References 15 publications

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“…The extended approach, which was applied in the context of this work, includes not only the spindle power (P c ) but also the power from the fluid supply pump (P cl ) and the base power of the grinding machine (P bp ) (constant at 2kW) (see Eq. 1), whereby the entire grinding process is covered and a realistic consideration of the energy consumption can be done [9].…”

Section: Resultsmentioning

confidence: 99%

“…In grinding processes, the specific grinding energy -the ratio of the spindle power to the material removal rate -provides information about the energy consumption at the grinding spindle during the machining of a material volume unit and can therefore be used to evaluate the energy efficiency of the machining process during grinding. A process optimization, which enables a reduction of the process forces or the spindle power at a constant material removal rate, leads to a decrease of the specific grinding energy and thus to an increase of the energy efficiency of the grinding process [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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3D-Printed MWF Nozzles for Improved Energy Efficiency and Performance During Grinding

Zmich

Heinzel

2023

Lecture Notes in Mechanical Engineering

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Particularly during grinding of metal workpieces, a high energy consumption is required during the main process times, so that the resulting energy costs represent a significant amount of the total operating costs of the machine tool. In this context, the supply of metal working fluids (MWF) during the grinding process is often associated with a high energy consumption, but the MWF supply strategy (MWF flow rate, MWF nozzle, control and dimensioning of the MWF supply pumps) can significantly influence the energy efficiency of such processes. In the scope of this work, additive manufacturing was used to produce fluid supply nozzles adapted to the respective grinding process. In this work, it was shown that by using a flow-optimized nozzle the required power of the MWF supply pump can be significantly reduced, allowing to make the grinding process more efficient in terms of the energy required.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

3D-Printed MWF Nozzles for Improved Energy Efficiency and Performance During Grinding

Zmich

Heinzel

2023

Lecture Notes in Mechanical Engineering

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“…Regarding the grinding process, Heinzel and Kolkwitz [22] analyzed the effect of fluid supply on energy efficiency. The results showed that the modular nozzle has higher energy efficiency than the tangential flat nozzle despite the higher power consumption.…”

Section: Grindingmentioning

confidence: 99%

A Literature Review of Energy Efficiency and Sustainability in Manufacturing Systems

Renna

Materi

2021

Applied Sciences

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Climate change mitigation, the goal of reducing CO2 emissions, more stringent regulations and the increment in energy costs have pushed researchers to study energy efficiency and renewable energy sources. Manufacturing systems are large energy consumers and are thus responsible for huge greenhouse gas emissions; for these reasons, many studies have focused on this topic recently. This review aims to summarize the most important papers on energy efficiency and renewable energy sources in manufacturing systems published in the last fifteen years. The works are grouped together, considering the system typology, i.e., manufacturing system subclasses (single machine, flow shop, job shop, etc.) or the assembly line, the developed energy-saving policies and the implementation of the renewable energy sources in the studied contexts. A description of the main approaches used in the analyzed papers was discussed. The conclusion reports the main findings of the review and suggests future directions for the researchers in the integration of renewable energy in the manufacturing systems consumption models.

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“…Jia et al [5,15,16] modeled the energy demand of machine tools based on Therbligs. Kara [17], Balogun [18], Cai [19], Liu [20], Ghosh [21], and Heinzel [22] all employed SEC (specific energy consumption) as an indicator to measure the energy efficiency of different machining processes. Ma [23], Liu [24], and Tuo [25,26] investigated the inherent energy performance of machine tools to describe the differences in energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Exergy Loss Assessment Method for CNC Milling System considering the Energy Consumption of the Operator

Feng,

Zhang,

et al. 2023

Preprint

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Modeling and assessing the sustainability of machining systems has been considered to be a crucial approach to improving the environmental performance of the machining processes. As the most common machining system, the computer numerical control (CNC) milling system is a typical man-machine cooperative system where the activities of the machine tool and operator generate material and energy consumption. However, the energy consumption of the operator in the CNC milling system has often been ignored in most existing research. Therefore, existing methods fail to provide a comprehensive understanding of the sustainability of the CNC milling system. To fill this gap, an exergy loss assessment method is proposed to investigate the sustainability of the CNC milling system, where the energy consumption of the operator, the energy consumption of the machine tool, and material consumption are taken into consideration. The key performance indexes of the energy consumption of the operator, the energy consumption of the machine tool, the exergy loss, and the specific exergy loss (SEL) are analyzed and modeled. To demonstrate the feasibility of the proposed method, a case study was carried out on a three-axis machining center (XH714D), in which SEL was found to be 88.04J/mm3. The proposed method is effective to assess the sustainability of the CNC milling system, and the established exergy loss models build a good basis for exergy efficiency optimization.

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The Impact of fluid supply on energy efficiency and process performance in grinding

Cited by 18 publications

References 15 publications

3D-Printed MWF Nozzles for Improved Energy Efficiency and Performance During Grinding

3D-Printed MWF Nozzles for Improved Energy Efficiency and Performance During Grinding

A Literature Review of Energy Efficiency and Sustainability in Manufacturing Systems

Exergy Loss Assessment Method for CNC Milling System considering the Energy Consumption of the Operator

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