A Study on the Effects of Milling Strategy on Surface Roughness

Year 2019, Volume: 15 Issue: 1, 125 - 130, 22.03.2019

Ayhan Etyemez Aziz Baran

https://doi.org/10.18466/cbayarfbe.492270

Abstract

In this study, DIN 1.2344 hot work steel which was hardened at 51 HRC hardness value was processed by using high-speed milling
technology, and different milling parameters with 6 mm-diameter spherical endmill and the surface qualities which were obtained as a result of milling were examined. Axial and radial feed values,
feed value per tooth and depth of cut were
changed between the range of 0.05 and 0.1 mm and the rate of cutting was
changed between the range of 485 rpm and
4,000 rpm. These millings were carried
out on material in the spherical form of which diameter was 21 mm, and the central angle was 150º. Also, milling
directions were processed in different
ways as climb milling, conventional milling and bidirectional milling in
experimental cuttings. Surface roughness was
examined in directions with 15º,
45º, 75º, 90º, 105º, 135º and 165º central
angles on the material which was processed.
The best surface quality was achieved in
regions with 15º and 45º angles

Keywords

High-speed milling, Surface quality, Milling strategy

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