Drilling of CFRP/Ti-6Al-4V Stacks

Tetsuya Tashiro; Junsuke Fujiwara; Keiko Inada

doi:10.4028/www.scientific.net/AMR.325.369

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An Experimental Study on the Effects of Ultrasonic Assisted Drilling on Chip Characteristics and Tool Life
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Drilling CFRP Thermosets Using Mounted Points
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Influences of Processing Parameters on Hole Shape Accuracy in Drilling Carbon Fiber Reinforced Composite
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Tool Wear and Cutting Temperature at Machining of Composites
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The Influence of SiC Particles on Tool Wear in Machining of Al/SiC Metal Matrix Composites Produced by Powder Extrusion
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 325Drilling of CFRP/Ti-6Al-4V Stacks

Drilling of CFRP/Ti-6Al-4V Stacks

Abstract:

Drilling experiments of CFRP/Ti6Al4V laminated stack board were carried out use of a TiAlN-coated cemented carbide drill and a TiAlCr/TiSi-coated cemented carbide drill. In the experimental conditions described herein, tool life is longer for lowered feed speed, and a TiAlCr/TiSi-coated cemented carbide drill has longer life than the other. Additionally, the cooling performance between dry process and water-mist-cooling were compared. Regarding water-mist-cooling, although the thrust is smaller, chips are much harder. They also adhere to the drill margin and impart damage to the CFRP wall of the hole. For a number of holes less than 50, water-mist-cooling reduces tool abrasion. However, the abrasion increases suddenly for hole numbers greater than 50. Accordingly, for the number of holes drilled well over 50, tool life is longer in dry processing than in water-mist-cooling.

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Periodical:

Advanced Materials Research (Volume 325)

Pages:

369-374

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.325.369

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Online since:

August 2011

Authors:

Tetsuya Tashiro, Junsuke Fujiwara, Keiko Inada

Keywords:

Carbon Fiber Reinforced Polymer/Plastic (CFRP), Dry Drilling, Mist, Stack, Ti Alloys

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