Tool wear and surface quality during milling CFRP laminates under dry and LN2-based cryogenic conditions

Chen, Xiaoyu; Zhao, Wei; Zhao, Guolong; Jamil, Muhammad; He, Ning

doi:10.1007/s00170-022-10234-y

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…Another important machining factor severely affecting the hole quality was the cutting temperature. It is found that higher cutting speeds in FMLs lead to accelerated tool wear [24] and resin burn-out [25], which in turn leads to fiber pull-out and also weakens the FRP and metal interfaces [26]. Thus, modern machining techniques make use of minimum quantity lubrication (MQL) and cryogenic liquid nitrogen to bring down the cutting zone temperature during the drilling of FMLs [27].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Helical Milling and Drilling Operations While Machining Carbon Fiber-Reinforced Aluminum Laminates

Bolar,

Dinesh,

Polishetty

et al. 2024

JMMP

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Being a difficult-to-cut material, Fiber Metal Laminates (FML) often pose challenges during conventional drilling and require judicious selection of machining parameters to ensure defect-free laminates that can serve reliably during their service lifetime. Helical milling is a promising technique for producing good-quality holes and is preferred over conventional drilling. The paper compares conventional drilling with the helical milling technique for producing holes in carbon fiber-reinforced aluminum laminates. The effect of machining parameters, such as cutting speed and axial feed, on the magnitude of cutting force and the machining temperature during conventional drilling as well as helical milling is studied. It was observed that the thrust force produced during machining reduces considerably during helical milling in comparison to conventional drilling at a constant axial feed rate. The highest machining temperature recorded for helical milling was much lower in comparison to the highest machining temperature measured during conventional drilling. The machining temperatures recorded during helical milling were well below the glass transition temperature of the epoxy used in carbon fiber prepreg, hence protecting the prepreg from thermal degradation during the hole-making process. The surface roughness of the holes produced by both techniques is measured, and the surface morphology of the drilled holes is analyzed using a scanning electron microscope. The surface roughness of the helical-milled holes was lower than that for holes produced by conventional drilling. Scanning electron microscope images provided insights into the interaction of the hole surface with the chips during the chip evacuation stage under different speeds and feed rates. The microhardness of the aluminum layers increased after processing holes using drilling and helical milling operations. The axial feed/axial pitch had minimal influence on the microhardness increase in comparison to the cutting speed.

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Section: Introductionmentioning

confidence: 99%

Performance Analysis of Helical Milling and Drilling Operations While Machining Carbon Fiber-Reinforced Aluminum Laminates

Bolar,

Dinesh,

Polishetty

et al. 2024

JMMP

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“…However, further research is needed. Chen et al [29] observed an increase in surface roughness in comparison to dry cutting, while Agrawal et al [30] and Zhang et al [28] reported a reduction in surface roughness. Here, the process can be optimized.…”

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confidence: 99%

“…Considering longer cutting distances, a cooling concept for woodcutting becomes crucial. Different authors [28][29][30] suggested cryogenic cooling is a promising cooling process for milling continuous fiberreinforced thermoplastics, showcasing a significant reduction in tool wear. However, further research is needed.…”

mentioning

confidence: 99%

Temperature and Wear Analysis of Adhesively Bonded and Soldered Cutting Tools for Woodcutting

Stribick,

Pahmeyer

2023

JMMP

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Cutting tools undergo constant development to meet the demands of higher cutting speeds, difficult-to-cut materials and ecological considerations. One way to improve cutting tools involves transitioning from soldering to adhesive bonding in the manufacturing process. However, there is limited research comparing adhesively bonded tools with soldered tools in woodcutting applications. This paper presents a comparison between adhesively bonded and soldered tools in the cutting of medium-density fiberboards over a cutting distance of 1000 m. The results indicate that adhesively bonded tools are well-suited for machining medium-density fiberboards. Additionally, the cutting-edge radii exhibit a slower increase and the tool temperatures are higher compared to soldered tools. Future research could optimize the damping effect through the precise design of the bonding area. Additionally, investigating a cooling concept for the machining process could help minimize ageing effects.

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Comprehensive analysis of tool wear, surface roughness and chip morphology in sustainable turning of Inconel-601 alloy

Korkmaz,

Gupta,

Günay

et al. 2023

Journal of Manufacturing Processes

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Tool wear and surface quality during milling CFRP laminates under dry and LN2-based cryogenic conditions

Cited by 4 publications

References 39 publications

Performance Analysis of Helical Milling and Drilling Operations While Machining Carbon Fiber-Reinforced Aluminum Laminates

Performance Analysis of Helical Milling and Drilling Operations While Machining Carbon Fiber-Reinforced Aluminum Laminates

Temperature and Wear Analysis of Adhesively Bonded and Soldered Cutting Tools for Woodcutting

Comprehensive analysis of tool wear, surface roughness and chip morphology in sustainable turning of Inconel-601 alloy

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