ABSTRACTS, cont.

Abstracts, cont.
Process parameters effect on cutting forces and geometrical quality in thin wall micromilling
NAMRC41-1549
Massimiliano Annoni, Stefano Petrò, Lara Rebaioli, Quirico Semeraro, Riccardo Solito, Politecnico di Milano, Milano,
Italy
Micromilling is one of the most versatile tooling processes, three-dimensional features can be effectively
manufactured on molds and dies achieving a good accuracy performance. Typical and challenging features for
these microcomponents are high aspect ratio thin walls. The present study evaluates the effect of wall thickness,
milling strategy and tool path on cutting forces in C40 thin walls micromilling. An experimental campaign
was designed in order to statistically analyse the cutting force responses and a proper technique (ANalysis
of COVAriance) was applied to remove the tool wear effect. Considerations drawn in the present paper on
micromilling cutting forces were coupled with previous knowledge to start considering the feasibility of a more
general approach based on a force-quality direct link. Final target of the presented research is to improve the
current thin walls micromilling accuracy by suggesting the correct parameters combination for producing the
desired cutting forces.
67 MSEC 2013 NAMRC 41