Quantum mechanics

Drilling

Stack (abstract data type)

Engineering

Metallurgy

Materials science

Cryogenic treatment

Drill

Computer science

Mechanical engineering

Thermodynamics

Physics

Torque

Cryogenics

Microstructure

Composite material

Programming language

Machining

Thrust

Coolant

Materials and Manufacturing Processes

This paper compares conventional and cryogenic cooling in the deep hole drilling of carbon fiber reinforced polymer (CFRP)/Ti stacks. Various parameters are taken into account to find if the use of cryogenic coolant is justified by the improvement of the final results. Both the thrust and the torque were acquired continuously during the machining operations and compared both in average and distribution. The use of a cryogenic coolant brings a reduction in thrust force and torque without any sensible drawback. Overall the results prove that cryogenic drilling is a suitable technology for CFRP/Ti stack drill.

A comparison between wet and cryogenic drilling of CFRP/Ti stacks