Evaluation of the performance of coated and uncoated carbide tools in drilling thick CFRP/aluminium alloy stacks

Montoya, Maxime; Calamaz, Madalina; Géhin, Daniel; Girot, F.

doi:10.1007/s00170-013-4817-0

Cited by 108 publications

(64 citation statements)

References 19 publications

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“…The phenomenon was also observed by Montoya et al. 11 It can be attributed to the increased tool instability when drilling the bottom Al layer. With a spindle speed of 1000 rpm, (see Fig.…”

Section: Hole Diametermentioning

confidence: 54%

“…2,10 Cavities, micro cracks and matrix resin degradation on the hole surface of CFRP were observed by Xu et el. 5 during drilling of T800S/250F CFRP laminates and Montoya et al 11 during drilling of CFRP/Al stacks which was closely related to the too high drilling temperature.…”

Section: Introductionmentioning

confidence: 97%

“…The nature of hardness makes it more resistant to abrasive wear than any other cutting materials. 21,22 According to Montoya et al, 11 the use of a diamond coating can decrease the trust force (by limiting wear) by 65% for CFRP and by 35% for Al. Zitoune et al, 23 Karpat et al [24][25][26] have studied the effect of geometry structure of the drill bits during drilling of CFRP/metal stacks.…”

Section: Introductionmentioning

confidence: 98%

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Drilling temperature and hole quality in drilling of CFRP/aluminum stacks using diamond coated drill

Wang

Chen

et al. 2015

Int. J. Precis. Eng. Manuf.

127

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Composite/metal stack materials, most often consisting of carbon fiber reinforced polymer (CFRP) composites and aluminum or titanium alloy (Al or Ti), have been widely used in the aviation industry. It is still a challenge to make holes on the composite/metal stack materials with high quality. This paper aims to investigate the influence of drilling parameters on the drilling of stack materials consisting of T800/X850 CFRP and 7075-T651 Al with regard to drilling force, drilling temperature, hole diameter and hole surface quality. Diamond coated drill bits with double point angles were employed in the drilling tests. The drilling temperature was measured utilizing a rotational motion temperature measuring system. It is indicated that maximum drilling temperature increases with the increase of spindle speed, while, it decreases with increasing feed rate. The thrust force and drilling temperature increase abnormally during drilling of the Al layer, which can be attributed to the evacuation difficulty of the long and flexible Al chips. It is found that sudden drops in the surface profile of CFRP are caused by the cavities owning to the resin degradation effects. The influences of different stack sequences on the drilling temperature and hole surface quality have also been discussed.

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“…The phenomenon was also observed by Montoya et al. 11 It can be attributed to the increased tool instability when drilling the bottom Al layer. With a spindle speed of 1000 rpm, (see Fig.…”

Section: Hole Diametermentioning

confidence: 54%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Drilling temperature and hole quality in drilling of CFRP/aluminum stacks using diamond coated drill

Wang

Chen

et al. 2015

Int. J. Precis. Eng. Manuf.

127

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show abstract

“…Qi et al [13] established the relation of layers and critical axial force in the CFRP/Metal drilling based on linear elastic fracture mechanics, and used the relation with axial force to predict the layer defects in CFRP drilling. Montoya et al [14] analyzed the influences on the cutting force, hole quality, and tool wear when using coated or uncoated carbide cutters to drill CFRP/Al. Brinksmeier et al [15] studied the lamination drilling of Al/CFRP/Ti and proposed a new method to drill multiple layers by step drill.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on the performance of different structure tools in drilling CFRP/Al alloy stacks

Zhang

Tian

et al. 2015

Int J Adv Manuf Technol

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Contrast experiments, in which CFRP and 7075 aluminum alloy stacked materials were drilled with different structure drills respectively, were carried out to assess how process parameters and tools affected hole accuracy, roughness, and burr height as well as cutting force. The results showed that comprehensive cutting ability of the new structure CVD diamondcoated drill was significantly higher than that of the traditional twist drill when drilling CFRP/Al stacks without coolant. The best process parameters were at the speed of 4000 r/min, the feed rate of 0.04 mm/r, with which the aperture accuracy could reach H8, composite shrinkage could be controlled in less than 5 μm and hole wall roughness also meet industry needs (CFRP: Ra≤3.2 μm, Al: Ra≤1.6 μm). Matrix cracking and larger rolled-back burrs would be apparent with the tool wear. On the premise of ensuring the quality and accuracy, the cutting tool could be used for 400 holes at least.

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“…The results showed when the drill tip initially contacted surface on the titanium after machining of CFRP with changing cutting parameters, it could significantly improve the quality and tool life. Montoya et al [9] found abrasion was the dominant tool wear pattern and measured wear progression of the cutting edges when drilling of CFRP/Al stacks using tungsten carbide drills.…”

Section: Introductionmentioning

confidence: 99%

A comparative study on helical milling of CFRP/Ti stacks and its individual layers

Wang

Qin

et al. 2016

Int J Adv Manuf Technol

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Carbon fiber-reinforced plastics (CFRPs) and titanium alloys have different mechanical properties and show the unique processing characteristics in the cutting process. In order to complete hole-making of CFRP/Ti stacks with larger thickness, a comparative study was conducted on the stacks of CFRP/Ti versus CFRP and titanium alloy single plate in the helical milling process. Experimental results show that cutting performance including cutting force and tool wear pattern and hole quality in helical milling of stacks are all different to single plate. The impact of tool wear on the cutting force is relatively significant while machining of CFRP compared to titanium alloy. While machining of CFRP/Ti stacks, axial forces of titanium alloy suddenly change very larger than single titanium plate due to tool wear, and tool wear state shows combination of several wear pattern. Undersized CFRP holes and oversized Ti plate holes are produced when milling single plate; however, oversized CFRP and undersized Ti plate holes are observed when machining of stacks. The results also indicate that tool wear in helical milling of CFRP will influence the cutting performance of stacks.

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Evaluation of the performance of coated and uncoated carbide tools in drilling thick CFRP/aluminium alloy stacks

Cited by 108 publications

References 19 publications

Drilling temperature and hole quality in drilling of CFRP/aluminum stacks using diamond coated drill

Drilling temperature and hole quality in drilling of CFRP/aluminum stacks using diamond coated drill

Experimental studies on the performance of different structure tools in drilling CFRP/Al alloy stacks

A comparative study on helical milling of CFRP/Ti stacks and its individual layers

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