Abstract
AISI O1 was processed by surface milling and the influence of milling time on the surface morphology was studied by 3D profilometer and scanning electron microscopy (SEM). Results show that when AISI O1 specimens are processed with various milling time, the morphology of AISI O1 changes correspondingly. Moreover, it demonstrates that the initial increase in milling time accompanies with the increase in surface roughness until the milling time reaches 60 min at which the surface roughness is the minimum
Highlights
The surface finishing of metal molds is always done by hand lapping after milling and/or electrical discharge machining in order to attain small surface roughness without micro cracks
Too longer milling time will be likely to destroy the surface of substrate which subsequently changes the surface topography and mechanical properties of the steel specimens
Results indicate that the initial increase in milling time accompanies with the increase in surface roughness until the milling time reaches 60 min at which the surface roughness is the minimum
Summary
The surface finishing of metal molds is always done by hand lapping after milling and/or electrical discharge machining in order to attain small surface roughness without micro cracks. In this process operator shortcomings cause these manual processing methods to have a number of limitations. Precision machining using a single point diamond tool is slow, requires conditions not readily available in an industrial environment and is limited to flat surfaces [2-4]. The influence of milling time on the surface morphology of AISI O1 was studied by 3D profilometer and scanning electron microscope (SEM)
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