Carbon Fibre Reinforced Polymer (CFRP) Composites: Machining Aspects and Opportunities for Manufacturing Industries

Sobri, Sharizal Ahmad; Heinemann, Robert; Whitehead, David

doi:10.1007/978-3-030-45489-0_2

Cited by 7 publications

(12 citation statements)

References 40 publications

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“…In the machining process, when a tool penetrates inside a metal workpiece, it produces an internal shearing action in the metal where the metal becomes severely stressed. This causes the metal to be plastically deformed and flow in the form of chips when the ultimate shear strength of the metal is exceeded [27]. In the drilling process, the thrust force is the perpendicular force to the workpiece during its translational motion while the torque comes from the machine spindle to rotate the tool during drilling operation.…”

Section: Cutting Mechanisms In the Drilling Of Aluminiummentioning

confidence: 99%

“…Additionally, when a tool face is in contact for a long time, it results in more frictional heat and affects machining. Therefore, discontinuous and segmented chips produce less friction between the tool and chip; hence, resulting in a better surface finish and providing higher operator safety [27].…”

Section: Cutting Mechanisms In the Drilling Of Aluminiummentioning

confidence: 99%

“…As mentioned earlier, the best performance in a drilling process is obtained when using appropriate cutting tools, where the correct process conditions are used to reduce the level of damage as much as possible [27]. The most commonly used drill bit is the twist drill, as shown in Figure 1, which represents the industrial standard [36].…”

Section: Cutting Tool and Spindle Adjustment In Multi-spindle Drillinmentioning

confidence: 99%

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Analysis of the Performance of Drilling Operations for Improving Productivity

Tolouei‐Rad¹,

Aamir²

2021

Drilling Technology

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Drilling is a vital machining process for many industries. Automotive and aerospace industries are among those industries which produce millions of holes where productivity, quality, and precision of drilled holes plays a vital role in their success. Therefore, a proper selection of machine tools and equipment, cutting tools and parameters is detrimental in achieving the required dimensional accuracy and surface roughness. This subsequently helps industries achieving success and improving the service life of their products. This chapter provides an introduction to the drilling process in manufacturing industries which helps improve the quality and productivity of drilling operations on metallic materials. It explains the advantages of using multi-spindle heads to improve the productivity and quality of drilled holes. An analysis of the holes produced by a multi-spindle head on aluminum alloys Al2024, Al6061, and Al5083 is presented in comparison to traditional single shot drilling. Also the effects of using uncoated carbide and high speed steel tools for producing high-quality holes in the formation of built-up edges and burrs are investigated and discussed.

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Section: Cutting Mechanisms In the Drilling Of Aluminiummentioning

confidence: 99%

Section: Cutting Mechanisms In the Drilling Of Aluminiummentioning

confidence: 99%

Section: Cutting Tool and Spindle Adjustment In Multi-spindle Drillinmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of the Performance of Drilling Operations for Improving Productivity

Tolouei‐Rad¹,

Aamir²

2021

Drilling Technology

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“…It was also the first aircraft to have a smooth wing section rather than wings that are divided into sections span-wise. Drilling (which is one of the most common operations in manufacturing) creates holes for mechanical joints such as rivets, bolts, and screws [ 3 ]. Only the appropriate tool geometry, combined with the proper process conditions and ideal machining efficiency, can result in an acceptable level of damage [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…The machining of FRP composites is difficult and causes material damage in both mechanical and laser machining. The drilling of composites (particularly CFRP) is one of the most difficult processes to work with, and careful care must be taken to ensure protection from thermal shocks, fix problems with tools, avoid delamination and negate severe damage [ 3 , 4 , 5 ]. The optimum performance in the drilling of CFRP composites depends on the proper consideration of these conditions.…”

Section: Introductionmentioning

confidence: 99%

Sequential Laser–Mechanical Drilling of Thick Carbon Fibre Reinforced Polymer Composites (CFRP) for Industrial Applications

2021

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Carbon fibre reinforced polymer composites (CFRPs) can be costly to manufacture, but they are typically used anywhere a high strength-to-weight ratio and a high steadiness (rigidity) are needed in many industrial applications, particularly in aerospace. Drilling composites with a laser tends to be a feasible method since one of the composite phases is often in the form of a polymer, and polymers in general have a very high absorption coefficient for infrared radiation. The feasibility of sequential laser–mechanical drilling for a thick CFRP is discussed in this article. A 1 kW fibre laser was chosen as a pre-drilling instrument (or initial stage), and mechanical drilling was the final step. The sequential drilling method dropped the overall thrust and torque by an average of 61%, which greatly increased the productivity and reduced the mechanical stress on the cutting tool while also increasing the lifespan of the bit. The sequential drilling (i.e., laser 8 mm and mechanical 8 mm) for both drill bits (i.e., 2- and 3-flute uncoated tungsten carbide) and the laser pre-drilling techniques has demonstrated the highest delamination factor (SFDSR) ratios. A new laser–mechanical sequence drilling technique is thus established, assessed, and tested when thick CFRP composites are drilled.

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Tribological CCF-PEEK transfer film growth on cutting tool coating

Dong

Chun-yue

et al. 2022

Surface Engineering

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To show transfer film growth of continuous carbon fibre reinforced thermoplastic poly-etherether-ketone (CCF-PEEK) on cutting tool coating, dry-sliding tribological behaviours of singlelayer diamond-like carbon (DLC), titanium nitride (TiN), titanium aluminium nitride (TiAlN) and diamond deposited on cobalt-based cemented carbide (WC-Co) against CCF-PEEK were studied at atmospheric room temperature, respectively. CCF-PEEK showed little affinity to DLC, but continuous CCF-PEEK transfer films with micron-level thickness grew on TiN, TiAlN and diamond, and raising load facilitated the growth. Deposition of DLC significantly lowered the friction of WC-Co whereas TiN, TiAlN and diamond exhibited higher friction than WC-Co. Much larger amounts of CCF-PEEK wear debris were produced on diamond than on TiAlN, TiN and DLC. Formation mechanisms of CCF-PEEK transfer films and the effect on friction are discussed. This study suggests that DLC can be used as countermate surfaces of CCF-PEEK composite with low friction and little CCF-PEEK wear debris.

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Carbon Fibre Reinforced Polymer (CFRP) Composites: Machining Aspects and Opportunities for Manufacturing Industries

Cited by 7 publications

References 40 publications

Analysis of the Performance of Drilling Operations for Improving Productivity

Analysis of the Performance of Drilling Operations for Improving Productivity

Sequential Laser–Mechanical Drilling of Thick Carbon Fibre Reinforced Polymer Composites (CFRP) for Industrial Applications

Tribological CCF-PEEK transfer film growth on cutting tool coating

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