Publication detail
Machinability of extruded H13 tool steel: Effect of cutting parameters on cutting forces, surface roughness, microstructure, and residual stresses
KOLOMÝ, Š. MALÝ, M. SEDLÁK, J. ZOUHAR, J. SLANÝ, M. HRABEC, P. KOUŘIL, K.
English title
Machinability of extruded H13 tool steel: Effect of cutting parameters on cutting forces, surface roughness, microstructure, and residual stresses
Type
journal article in Web of Science
Language
en
Original abstract
The production of H13 tool steel (TS) by material extrusion (MEX) is a promising method in various applications, but as-built surface roughness does not comply with the quality requirements. Hence, this study investigated the effects of cutting parameters on tool wear, cutting forces, surface quality, microhardness, structure, and residual stresses when machining H13 TS produced by MEX. Dry machining (DM) proved advantageous in certain indicators such as tool wear and cutting forces in comparison to the flood cooling (FC). The lowest surface roughness (0.08 mu m) was achieved at the cutting speed of 80 m/min, feed per tooth of 0.005 mm, and FC which corresponded to a 41 % decrease compared to DM under same conditions. Surface microhardness increased by 20 % after machining, decreasing with distance from the surface. The highest compressive residual stresses were observed under FC, while the DM resulted in a 78.2 % decrease in residual stresses due to a partial annealing effect caused by higher surface temperature. Overall, DM exhibited great potential for achieving high-quality surfaces with a favorable structure and residual stresses. This study
English abstract
The production of H13 tool steel (TS) by material extrusion (MEX) is a promising method in various applications, but as-built surface roughness does not comply with the quality requirements. Hence, this study investigated the effects of cutting parameters on tool wear, cutting forces, surface quality, microhardness, structure, and residual stresses when machining H13 TS produced by MEX. Dry machining (DM) proved advantageous in certain indicators such as tool wear and cutting forces in comparison to the flood cooling (FC). The lowest surface roughness (0.08 mu m) was achieved at the cutting speed of 80 m/min, feed per tooth of 0.005 mm, and FC which corresponded to a 41 % decrease compared to DM under same conditions. Surface microhardness increased by 20 % after machining, decreasing with distance from the surface. The highest compressive residual stresses were observed under FC, while the DM resulted in a 78.2 % decrease in residual stresses due to a partial annealing effect caused by higher surface temperature. Overall, DM exhibited great potential for achieving high-quality surfaces with a favorable structure and residual stresses. This study
Keywords in English
H13 tool steel; Material extrusion; Cutting forces; Microstructure; Microhardness; Residual stresses
Released
19.05.2024
Publisher
Elsevier
Location
AMSTERDAM
ISSN
2090-2670
Volume
99
Number
July
Pages from–to
394–407
Pages count
14
BIBTEX
@article{BUT188986,
author="Štěpán {Kolomý} and Martin {Malý} and Martin {Malý} and Josef {Sedlák} and Jan {Zouhar} and Martin {Slaný} and Pavel {Hrabec} and Karel {Kouřil},
title="Machinability of extruded H13 tool steel: Effect of cutting parameters on cutting forces, surface roughness, microstructure, and residual stresses",
year="2024",
volume="99",
number="July",
month="May",
pages="394--407",
publisher="Elsevier",
address="AMSTERDAM",
issn="2090-2670"
}