Custom-tailored cross-cylinder tribotest to emulate wear mechanism in drilling of CFRP-Ti stacks

Khan, Sharjeel AhmedLuleå tekniska universitet,Maskinelement,Department of Mechanical Engineering, CEMMPRE, ARISE, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal (författare)

Validerad;2023;Nivå 2;2023-05-29 (joosat);Funder: FCT – Fundaçao para a Ciencia e a Tecnologia, (UIDB/00285/2020, LA/P/0112/2020)
While drilling of CFRP-Ti stacks, tool experiences complex tribomechanical interaction due to dissimilar workpiece constituents. For emulating tool wear behavior, the typical tribotest configuration such as reciprocating and pin-on-disc test are not representative for imitating contact scenario underwent during the drilling operation. Cross-cylinder tribotest is an effective test configuration to emulate contact in different manufacturing processes by providing fresh contact surface during sliding. In this work, for the first-time, tool wear of WC-Co cylinders was analyzed in cross-cylinder configuration against multi-material stack arrangement. Moreover, cross-cylinder testing against multi-material [CFRP-Ti]n workpiece showed cyclic variation in coefficient of friction against different workpiece constituents and wear mechanism is a combination of adhesive and abrasive wear on WC-Co tool, comparable to actual drilling operation.

Emami, NazaninLuleå tekniska universitet,Maskinelement(Swepub:ltu)emami (författare)
Ramalho, AmilcarDepartment of Mechanical Engineering, CEMMPRE, ARISE, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal (författare)
Luleå tekniska universitetMaskinelement (creator_code:org_t)

Av författaren/redakt...: Khan, Sharjeel A ...; Emami, Nazanin; Ramalho, Amilcar

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Maskinteknik; och Tribologi

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