Cryogenic assistance during CFRP drilling
Communication avec acte
Author
DUCROUX, EdouardMERZOUKI, Johan 
ROSSI, Frederic POULACHON, GerardABRIVARD, GuillaumeAbstract
The CFRP cutting mechanisms are highly linked to fibers orientations. Firstly, this paper deals with a mechanical characterization of CFRP under cryogenic temperatures. An instrumented compressive test with fibers oriented at 45° regarding the crushing direction has been conducted ranging from -196°C to 20°C to follow the evolution of the failure stress of the epoxide resin. Secondly, a semi-orthogonal radial turning experiment on unidirectional CFRP (T800M21 UD) disc with and without cryogenic assistance has been performed. As the fibers are oriented perpendicular to the spinning axis, on one turn, the tool cuts all the fibers with angles varying from 0° to 360°. During these specific tests the cutting forces have been monitored to characterize the cutting forces evolution versus fiber orientation. The experiment showed that cryogenic machining increases cutting forces but decreases surface roughness compare to dry machining.
Files in this item
Collections
Related items
Showing items related by title, author, creator and subject.
-
Communication avec acte;POULACHON, Gerard; ROSSI, FREDERIC; AYED, Yessine; (ELSEVIER, 2017)
This work deals with the phenomenon of hole shrinkage during Ti6Al4V drilling. Indeed, the shape and dimensions of the drilled hole, as well as the heat generated by the operation depend on this phenomenon which ...
-
Article dans une revue avec comité de lecture; ; ;AYED, Yessine; (Springer Science and Business Media LLC, 2020-06-12)
This paper focuses on the impact of cryogenic assistance on the drilling of Ti6Al4V titanium alloy. It develops a relation between the phenomenon of hole shrinkage and measurements performed either during or after the ...
-
Article dans une revue avec comité de lecture; ; ;ROSSI, Frederic; POULACHON, Gerard (Inderscience, 2016)
In aerospace applications, drilling is one of the most common operations. However, this machining stays complex and expensive, especially for difficult-to-cut materials such as titanium alloys. Because drilling is a blind ...
-
Communication avec acte; ; ;ROSSI, Frederic; POULACHON, Gerard (Congrès Français de Mécanique (21; 2013; Bordeaux), 2013)
In aerospace applications, drilling is one of the most common operations. However, this machining stays complex and expensive, especially in hard to cut materials. Because of the closed aspect of the operation, the measure ...
-
Communication avec acte; ;ROSSI, Frederic; FROMENTIN, Guillaume; POULACHON, Gerard (Elsevier, 2015)
In the case of hard machining of steels, negative rake tools generate compressive deformation and high temperature under the cutting edge, leading to phase transformation or ”white layers”. The resulting surface integrity ...