Detail publikace

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.

Anglický název

Machinability of extruded H13 tool steel: Effect of cutting parameters on cutting forces, surface roughness, microstructure, and residual stresses

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

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 studys novelty and robustness lie in its significant contribution to practical industrial applications, such as mold and core production.

Anglický abstrakt

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 studys novelty and robustness lie in its significant contribution to practical industrial applications, such as mold and core production.

Klíčová slova anglicky

H13 tool steel; Material extrusion; Cutting forces; Microstructure; Microhardness; Residual stresses

Vydáno

19.05.2024

Nakladatel

Elsevier

Místo

AMSTERDAM

ISSN

2090-2670

Ročník

99

Číslo

July

Strany od–do

394–407

Počet stran

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"
}