Effects of Machining Parameters on the Quality in Machining of Aluminium Alloys Thin Plates

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2019-09Department
Ingeniería Mecánica y Diseño IndustrialSource
Metals 2019, 9(9), 927Abstract
Nowadays, the industry looks for sustainable processes to ensure a more environmentally
friendly production. For that reason, more and more aeronautical companies are replacing chemical
milling in the manufacture of skin panels and thin plates components. This is a challenging operation
that requires meeting tight dimensional tolerances and di ers from a rigid body machining due to
the low sti ness of the part. In order to fill the gap of literature research on this field, this work
proposes an experimental study of the e ect of the depth of cut, the feed rate and the cutting speed
on the quality characteristics of the machined parts and on the cutting forces produced during the
process. Whereas surface roughness values meet the specifications for all the machining conditions,
an appropriate cutting parameters selection is likely to lead to a reduction of the final thickness
deviation by up to 40% and the average cutting forces by up to a 20%, which consequently eases the
clamping system and reduces machine consumption. Finally, an experimental model to control the
process quality based on monitoring the machine power consumption is proposed.
Subjects
thin plates; thin-wall; machining; aluminium; cutting forces; roughnessCollections
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