Diamond Drilling of Carbon Fiber Reinforced Polymers: Influence of Tool Grit Size and Process Parameters on Workpiece Delamination

Paolo C. Priarone; Matteo Robiglio; Ruslan Melentiev; Luca Settineri

doi:10.1016/j.procir.2017.03.296

Diamond Drilling of Carbon Fiber Reinforced Polymers: Influence of Tool Grit Size and Process Parameters on Workpiece Delamination

Paolo C. Priarone, Matteo Robiglio, Ruslan Melentiev, Luca Settineri

Research output: Journal Publication › Conference article › peer-review

23 Citations (Scopus)

Abstract

The physical and mechanical properties of advanced composite materials promote their application in structural components for the aerospace and automotive sectors. However, limitations in their machinability are due to anisotropy/inhomogeneity, poor plastic deformation, and abrasive behavior. For CFRP drilling, the process efficiency is heavily influenced by cutting conditions and tool geometry. This paper reports the outcomes of experimental diamond drilling tests. A 4-mm thick carbon-epoxy composite laminate was machined. The plate was made of ten layers, in which the carbon fibers were intertwined at 90°. 6-mm diameter core drills were used. Core drills were characterized by an electroplated bond type and an AC32-H diamond grain type. Four different tool grit size ranges were tested: (1) 63/53 μm, (2) 125/106 μm, (3) 212/180 μm, and (4) 212/180 plus 63/53 μm. The results are reported in terms of workpiece delamination, thrust force, torque, and chip morphology. Overall, the results allow identifying the cutting conditions for the minimum drilling-induced delamination while retaining a satisfactory process productivity.

Original language	English
Pages (from-to)	181-186
Number of pages	6
Journal	Procedia CIRP
Volume	66
DOIs	https://doi.org/10.1016/j.procir.2017.03.296
Publication status	Published - 2017
Externally published	Yes
Event	1st CIRP Conference on Composite Materials Parts Manufacturing, CIRP CCMPM 2017 - Karlsruhe, Germany Duration: 8 Jun 2017 → 9 Jun 2017

Keywords

CFRP
Cutting force
Delamination
Diamond drilling

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering

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10.1016/j.procir.2017.03.296

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title = "Diamond Drilling of Carbon Fiber Reinforced Polymers: Influence of Tool Grit Size and Process Parameters on Workpiece Delamination",

abstract = "The physical and mechanical properties of advanced composite materials promote their application in structural components for the aerospace and automotive sectors. However, limitations in their machinability are due to anisotropy/inhomogeneity, poor plastic deformation, and abrasive behavior. For CFRP drilling, the process efficiency is heavily influenced by cutting conditions and tool geometry. This paper reports the outcomes of experimental diamond drilling tests. A 4-mm thick carbon-epoxy composite laminate was machined. The plate was made of ten layers, in which the carbon fibers were intertwined at 90°. 6-mm diameter core drills were used. Core drills were characterized by an electroplated bond type and an AC32-H diamond grain type. Four different tool grit size ranges were tested: (1) 63/53 μm, (2) 125/106 μm, (3) 212/180 μm, and (4) 212/180 plus 63/53 μm. The results are reported in terms of workpiece delamination, thrust force, torque, and chip morphology. Overall, the results allow identifying the cutting conditions for the minimum drilling-induced delamination while retaining a satisfactory process productivity.",

keywords = "CFRP, Cutting force, Delamination, Diamond drilling",

author = "Priarone, {Paolo C.} and Matteo Robiglio and Ruslan Melentiev and Luca Settineri",

note = "Publisher Copyright: {\textcopyright} 2017 The Authors. Published by Elsevier B.V.; 1st CIRP Conference on Composite Materials Parts Manufacturing, CIRP CCMPM 2017 ; Conference date: 08-06-2017 Through 09-06-2017",

year = "2017",

doi = "10.1016/j.procir.2017.03.296",

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T2 - 1st CIRP Conference on Composite Materials Parts Manufacturing, CIRP CCMPM 2017

AU - Priarone, Paolo C.

AU - Robiglio, Matteo

AU - Melentiev, Ruslan

AU - Settineri, Luca

PY - 2017

Y1 - 2017

N2 - The physical and mechanical properties of advanced composite materials promote their application in structural components for the aerospace and automotive sectors. However, limitations in their machinability are due to anisotropy/inhomogeneity, poor plastic deformation, and abrasive behavior. For CFRP drilling, the process efficiency is heavily influenced by cutting conditions and tool geometry. This paper reports the outcomes of experimental diamond drilling tests. A 4-mm thick carbon-epoxy composite laminate was machined. The plate was made of ten layers, in which the carbon fibers were intertwined at 90°. 6-mm diameter core drills were used. Core drills were characterized by an electroplated bond type and an AC32-H diamond grain type. Four different tool grit size ranges were tested: (1) 63/53 μm, (2) 125/106 μm, (3) 212/180 μm, and (4) 212/180 plus 63/53 μm. The results are reported in terms of workpiece delamination, thrust force, torque, and chip morphology. Overall, the results allow identifying the cutting conditions for the minimum drilling-induced delamination while retaining a satisfactory process productivity.

AB - The physical and mechanical properties of advanced composite materials promote their application in structural components for the aerospace and automotive sectors. However, limitations in their machinability are due to anisotropy/inhomogeneity, poor plastic deformation, and abrasive behavior. For CFRP drilling, the process efficiency is heavily influenced by cutting conditions and tool geometry. This paper reports the outcomes of experimental diamond drilling tests. A 4-mm thick carbon-epoxy composite laminate was machined. The plate was made of ten layers, in which the carbon fibers were intertwined at 90°. 6-mm diameter core drills were used. Core drills were characterized by an electroplated bond type and an AC32-H diamond grain type. Four different tool grit size ranges were tested: (1) 63/53 μm, (2) 125/106 μm, (3) 212/180 μm, and (4) 212/180 plus 63/53 μm. The results are reported in terms of workpiece delamination, thrust force, torque, and chip morphology. Overall, the results allow identifying the cutting conditions for the minimum drilling-induced delamination while retaining a satisfactory process productivity.

KW - CFRP

KW - Cutting force

KW - Delamination

KW - Diamond drilling

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DO - 10.1016/j.procir.2017.03.296

M3 - Conference article

AN - SCOPUS:85027561084

SN - 2212-8271

VL - 66

SP - 181

EP - 186

JO - Procedia CIRP

JF - Procedia CIRP

Y2 - 8 June 2017 through 9 June 2017

ER -

Diamond Drilling of Carbon Fiber Reinforced Polymers: Influence of Tool Grit Size and Process Parameters on Workpiece Delamination

Abstract

Keywords

ASJC Scopus subject areas

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