Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust Emission

This article presents the influence of machining conditions on typical process performance indicators, namely cutting force, specific cutting energy, cutting temperature, tool wear, and fine dust emission during dry milling of CFRPs. The main goal is to determine the machining process window for obt...

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Main Authors: Tarek Elgnemi, Victor Songmene, Jules Kouam, Martin B.G. Jun, Agnes Marie Samuel
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/19/5697
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author Tarek Elgnemi
Victor Songmene
Jules Kouam
Martin B.G. Jun
Agnes Marie Samuel
author_facet Tarek Elgnemi
Victor Songmene
Jules Kouam
Martin B.G. Jun
Agnes Marie Samuel
author_sort Tarek Elgnemi
collection DOAJ
description This article presents the influence of machining conditions on typical process performance indicators, namely cutting force, specific cutting energy, cutting temperature, tool wear, and fine dust emission during dry milling of CFRPs. The main goal is to determine the machining process window for obtaining quality parts with acceptable tool performance and limited dust emission. For achieving this, the cutting temperature was examined using analytical and empirical models, and systematic cutting experiments were conducted to assess the reliability of the theoretical predictions. A full factorial design was used for the experimental design. The experiments were conducted on a CNC milling machine with cutting speeds of 10,000, 15,000, and 20,000 rpm and feed rates of 2, 4, and 6 µm/tooth. Based on the results, it was ascertained that spindle speed significantly affects the cutting temperature and fine particle emission while cutting force, specific cutting energy, and tool wear are influenced by the feed rate. The optimal conditions for cutting force and tool wear were observed at a cutting speed of 10,000 rpm. The cutting temperature did not exceed the glass transition temperature for the cutting speeds tested and feed rates used. The fine particles emitted ranged from 0.5 to 10 µm aerodynamic diameters with a maximum concentration of 2776.6 particles for those of 0.5 µm diameters. Finally, results of the experimental optimization are presented, and the model is validated. The results obtained may be used to better understand specific phenomena associated with the milling of CFRPs and provide the means to select effective milling parameters to improve the technology and economics of the process.
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spelling doaj.art-3dba4f8bbcae42cbb0091bff7b531ded2023-11-22T16:25:41ZengMDPI AGMaterials1996-19442021-09-011419569710.3390/ma14195697Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust EmissionTarek Elgnemi0Victor Songmene1Jules Kouam2Martin B.G. Jun3Agnes Marie Samuel4Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), Montreal, QC H3C-1K3, CanadaDepartment of Mechanical Engineering, École de Technologie Supérieure (ÉTS), Montreal, QC H3C-1K3, CanadaDepartment of Mechanical Engineering, École de Technologie Supérieure (ÉTS), Montreal, QC H3C-1K3, CanadaDepartment of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USADepartment of Mechanical Engineering, École de Technologie Supérieure (ÉTS), Montreal, QC H3C-1K3, CanadaThis article presents the influence of machining conditions on typical process performance indicators, namely cutting force, specific cutting energy, cutting temperature, tool wear, and fine dust emission during dry milling of CFRPs. The main goal is to determine the machining process window for obtaining quality parts with acceptable tool performance and limited dust emission. For achieving this, the cutting temperature was examined using analytical and empirical models, and systematic cutting experiments were conducted to assess the reliability of the theoretical predictions. A full factorial design was used for the experimental design. The experiments were conducted on a CNC milling machine with cutting speeds of 10,000, 15,000, and 20,000 rpm and feed rates of 2, 4, and 6 µm/tooth. Based on the results, it was ascertained that spindle speed significantly affects the cutting temperature and fine particle emission while cutting force, specific cutting energy, and tool wear are influenced by the feed rate. The optimal conditions for cutting force and tool wear were observed at a cutting speed of 10,000 rpm. The cutting temperature did not exceed the glass transition temperature for the cutting speeds tested and feed rates used. The fine particles emitted ranged from 0.5 to 10 µm aerodynamic diameters with a maximum concentration of 2776.6 particles for those of 0.5 µm diameters. Finally, results of the experimental optimization are presented, and the model is validated. The results obtained may be used to better understand specific phenomena associated with the milling of CFRPs and provide the means to select effective milling parameters to improve the technology and economics of the process.https://www.mdpi.com/1996-1944/14/19/5697CFRPmachiningtemperaturecutting forcesdust emissiontool wear
spellingShingle Tarek Elgnemi
Victor Songmene
Jules Kouam
Martin B.G. Jun
Agnes Marie Samuel
Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust Emission
Materials
CFRP
machining
temperature
cutting forces
dust emission
tool wear
title Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust Emission
title_full Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust Emission
title_fullStr Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust Emission
title_full_unstemmed Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust Emission
title_short Experimental Investigation on Dry Routing of CFRP Composite: Temperature, Forces, Tool Wear, and Fine Dust Emission
title_sort experimental investigation on dry routing of cfrp composite temperature forces tool wear and fine dust emission
topic CFRP
machining
temperature
cutting forces
dust emission
tool wear
url https://www.mdpi.com/1996-1944/14/19/5697
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