Chip Root Analysis after Machining Carbon Fiber Reinforced Plastics (CFRP) at Different Fiber Orientations

Voß, Robert; Henerichs, Marcel; Kuster, Friedrich; Wegener, Konrad

doi:10.1016/j.procir.2014.03.013

Cited by 45 publications

(22 citation statements)

References 12 publications

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“…A subsequent study analyzes the surface roughness as well as the appearance of the chip root [26]. Subsurface damages are evaluated using micrograph sections also in [23].…”

Section: Discussionmentioning

confidence: 99%

Machining of carbon fiber reinforced plastics: Influence of tool geometry and fiber orientation on the machining forces

Henerichs

Voß

Kuster

et al. 2015

CIRP Journal of Manufacturing Science and Technology

103

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“…A subsequent study analyzes the surface roughness as well as the appearance of the chip root [26]. Subsurface damages are evaluated using micrograph sections also in [23].…”

Section: Discussionmentioning

confidence: 99%

Machining of carbon fiber reinforced plastics: Influence of tool geometry and fiber orientation on the machining forces

Henerichs

Voß

Kuster

et al. 2015

CIRP Journal of Manufacturing Science and Technology

103

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“…In general one of the first three bores of every drill is analysed, any deviation is displayed in total feed. The two or three values in the three upper boxes indicate one relative measured value each, the left box shows the Displacement d 5 m tool life travel path followed by a curl between 0.7-1 high roughness does not necessarily lead to lower stiffness of the bore, it is even the other way round: The stiffness of M7 is highest in this sample results between 5900 and 6800 N/mm. While the roughness R a of drill geometry M8 increases significantly during tool lifetime the mechanical strength of the drilled bores does not change intensively.…”

mentioning

confidence: 88%

“…Recent research shows intensive and regular subsurface damages of fibres after machining operations. Bend or broken fibres regularly appear for specific fibre orientations [1,5,6]. An evaluation regarding the influence of induced material defects on the workpiece material strength is of high interest.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Material Weakening in CFRP after a Drilling Operation

et al. 2014

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Drilling Carbon Fibre Reinforced Plastics (CFRP) induces different material defects like delamination, burnt matrix material, rough bore channel surfaces, fibre pull-out and uncut fibres. Intensive research has been conducted to analyse the amount of defects caused, describing the surface and subsurface defects introduced by machining operations [1,2]. Additionally, the mechanical strength of rivet joints has been analysed intensively [3]. However, the mechanical performance of rivet joints includes many influencing factors as different materials prepared with various machining processes are being joined. The presented study introduces five newly developed test rigs to analyse the mechanical performance of single bores in relation to different drilling and loading conditions. The setups are designed to focus either on the mechanical strength of the bore channel or the drill entrance or exit. The developed test rigs expand the capability to describe the workpiece quality after a drilling operation. The test rigs facilitate an efficient quality evaluation of drilling processes as well as the development of adapted drilling tools.

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“…As a difficult-to-cut material, machining of CFRP has attracted increasing attention [3][4][5]. Due to various machining defects of CFRPs, the machined surface quality of these materials is difficult to control [6], which makes CFRPs difficult to cut.…”

Section: Introductionmentioning

confidence: 99%

Surface Quality of Staggered PCD End Mill in Milling of Carbon Fiber Reinforced Plastics

et al. 2017

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Machined surface quality determines the reliability, wear resistance and service life of carbon fiber reinforced plastic (CFRP) workpieces. In this work, the formation mechanism of the surface topography and the machining defects of CFRPs are proposed, and the influence of milling parameters and fiber cutting angles on the surface quality of CFRPs is obtained, which can provide a reference for extended tool life and good surface quality. Trimming and slot milling tests of unidirectional CFRP laminates are performed. The surface roughness of the machined surface is measured, and the influence of milling parameters on the surface roughness is analyzed. A regression model for the surface roughness of CFRP milling is established. A significance test of the regression model is conducted. The machined surface topography of milling CFRP unidirectional laminates with different fiber orientations is analyzed, and the effect of fiber cutting angle on the surface topography of the machined surface is presented by using a digital super depth-of-field microscope and scanning electron microscope (SEM). To study the influence of fiber cutting angle on machining defects, the machined topography under different fiber orientations is analyzed. The slot milling defects and their formation mechanism under different fiber cutting angles are investigated.

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Chip Root Analysis after Machining Carbon Fiber Reinforced Plastics (CFRP) at Different Fiber Orientations

Cited by 45 publications

References 12 publications

Machining of carbon fiber reinforced plastics: Influence of tool geometry and fiber orientation on the machining forces

Machining of carbon fiber reinforced plastics: Influence of tool geometry and fiber orientation on the machining forces

Analysis of Material Weakening in CFRP after a Drilling Operation

Surface Quality of Staggered PCD End Mill in Milling of Carbon Fiber Reinforced Plastics

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