Hole surface topography and tool wear in CFRP drilling
TypeCommunications avec actes
This paper deals with the hole surface quality when CFRP drilling. Mechanical instrumented operations have enabled to follow precisely the damage on the tool margins and the main cutting edges. The amount of uncut fibers according to the drill wear was evaluated with a roundness/cylindricity device versus the fiber’s orientation and the tool damage. Thus, according to the hole’s diameter tolerance, a wear criterion was defined to limit the number of holes achievable. This method has been carried out on unidirectional (UD) CFRP and then transposed on multidirectional (MD) CFRP. A model developed under Matlab was applied to predict the global topography of the hole surface.
Files in this item
Showing items related by title, author, creator and subject.
LAZOGLU, Ismaïl; POULACHON, Gérard; RAMIREZ, Christophe; AKMAL, Mohammad; MARCON, Bertrand; ROSSI, Frédéric; OUTEIRO, José; KREBS, Michael (Elsevier, 2017)Ti-6Al-4V is commonly used especially in aerospace and biomedical industries. This alloy is known as a difficult-to-cut material. Due to its poor thermal properties, the heat generated during machining processes traps near ...
Process Mechanics and Surface Integrity Induced by Dry and Cryogenic Machining of AZ31B-O Magnesium Alloy OUTEIRO, José; ROSSI, Frédéric; FROMENTIN, Guillaume; POULACHON, Gérard; GERMAIN, Guénaël; BATISTA, António (Elsevier, 2013)The corrosion resistance of magnesium alloys depends mainly on its surface integrity. Previous experimental studies have shown that machining can induces small (nano-scale) grain size, compressive residual stresses and ...
Experimental and numerical assessment of subsurface plastic deformation induced by OFHC copper machining OUTEIRO, José; CAMPOCASSO, Sébastien; DENGUIR, Lamice; FROMENTIN, Guillaume; VIGNAL, Vincent; POULACHON, Gérard (Elsevier, 2015)Strain distributions in the machined surface and subsurface of OFHC copper workpieces were determined experimentally and through numerical simulations. An experimental setup, comprising a double frame camera and a pulsed ...
Influence of toolpath and clamping strategies on stainless steel plates distorsion after machining CHARRONDIERE, Guillaume; CHERIF, Iheb; POULACHON, Gérard; COTTON, Dominique; OUTEIRO, José (2018-11-08)Heat exchangers in nuclear power generation plants are made of thin stainless-steel plates assembled together in order to improve their efficiency and compactness. To ensure the assembly, the global distortion of those ...
POUTORD, Antoine; ROSSI, Frédéric; POULACHON, Gérard; M'SAOUBI, Rachid; ABRIVARD, Guillaume (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 ...