objective of this work is the study of the High Speed Machining,
dealing with related concepts and recent developments in this area.
A reference is made to the different aspects, which contribute for
the effective application of this technology. The experimental
component groups a set of tests with the goal of evaluate the
capacity of using air turbine tools of high speed as a valid option
in the complex geometry machining. The used material was an aluminium
alloy, (7050) as a result of its crescent application in
aeronautics, automobile and moulding industries. Process parameters
are evaluated, such as speed and feed rate, observing roughness and
dimensional accuracy of the obtained surfaces.
a) (Ra = 0,500
mm) b) (Ra = 0,743
mm) c) (Ra =
d) Ra = 0,421
mm) e) (Ra = 0,606
mm) f) (Ra
= 0,660 mm)
Surface roughness; Vc = 750
m/min (a, b, c) ; Vc = 170 m/min (d, e, f).
Feed rate: a, d – 1600 mm/min; b,
e – 2000 mm/min; c, f – 2400 mm/min.