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Machine tool for machining e.g. ceramic matrix composite material piece, has outlet orifice comprising wall whose portion forms non-zero angle with line perpendicular to plane tangent to surface of head at outlet orifice
Machine tool for machining e.g. ceramic matrix composite material piece, has outlet orifice comprising wall whose portion forms non-zero angle with line perpendicular to plane tangent to surface of head at outlet orifice
The tool (1) has a head (10) rotating relative to a rotation axis (A), and a lubrication hole (20) formed in a surface of the head through an outlet orifice (22). A portion of a wall of the outlet orifice forms a non-zero angle with a line perpendicular to a plane tangent to the surface of the head at the outlet orifice. The hole is widened by forming a trapezoid or an ellipse at the surface of the head, where the hole is inclined with respect to the tangent plane.
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