Investigation of fatigue strength of tool steels in sheet-bulk metal forming

Pilz, F.; Gröbel, Daniel; Merklein, Marion

doi:10.1063/1.5035048

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…The fatigue strength of specimens in this group is much lower than the material produced by powder metallurgy, which shows a fatigue strength of 1300 MPa. [ 25 ]…”

Section: Resultsmentioning

confidence: 99%

“…The fatigue strength of specimens in this group is much lower than the material produced by powder metallurgy, which shows a fatigue strength of 1300 MPa. [25] Specimens after HIP with integrated heat treatment reach a fatigue strength of 1182 MPa with less scattering, as depicted in Figure 9b. After HIP, the fatigue strength significantly improved to more than twice that of the conventionally heattreated group.…”

Section: Fatigue Tests and Failure Analysismentioning

confidence: 96%

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Improving the Fatigue Strength of Laser Powder Bed‐Fused AISI M3:2 by Hot Isostatic Pressing

Qin

Herzog

Kaletsch

et al. 2022

steel research int.

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“…The fatigue strength of specimens in this group is much lower than the material produced by powder metallurgy, which shows a fatigue strength of 1300 MPa. [ 25 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Fatigue Tests and Failure Analysismentioning

confidence: 96%

Improving the Fatigue Strength of Laser Powder Bed‐Fused AISI M3:2 by Hot Isostatic Pressing

Qin

Herzog

Kaletsch

et al. 2022

steel research int.

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show abstract

“…While high-feed milling is generally capable of producing relatively high values for residual compressive stresses, the measured values in this study appeared to be rather low. In a similarly designed study, the identical machining process for the high-feed structuring of high-speed steel 1.3344 also showed comparable levels of residual stresses, which were slightly higher due to the higher hardness of the workpiece material [ 43 ]. This can be attributed in particular to the NC paths caused by the specimen’s geometry.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the Influence of Surface Modifications on the Fatigue Behavior of Hot Work Tool Steel Components

Wild¹,

Platt

Biermann

et al. 2021

Materials

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Hot work tool steels (HWS) are widely used for high performance components as dies and molds in hot forging processes, where extreme process-related mechanical and thermal loads limit tool life. With the functionalizing and modification of tool surfaces with tailored surfaces, a promising approach is given to provide material flow control resulting in the efficient die filling of cavities while reducing the process forces. In terms of fatigue properties, the influence of surface modifications on surface integrity is insufficiently studied. Therefore, the potential of the machining processes of high-feed milling, micromilling and grinding with regard to the implications on the fatigue strength of components made of HWS (AISI H11) hardened to 50 ± 1 HRC was investigated. For this purpose, the machined surfaces were characterized in terms of surface topography and residual stress state to determine the surface integrity. In order to analyze the resulting fatigue behavior as a result of the machining processes, a rotating bending test was performed. The fracture surfaces were investigated using fractographic analysis to define the initiation area and to identify the source of failure. The investigations showed a significant influence of the machining-induced surface integrity and, in particular, the induced residual stress state on the fatigue properties of components made of HWS.

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Constitutive Friction Law for the Description and Optimization of Tailored Surfaces

Henneberg¹,

Beyer²,

Löffler³

et al. 2020

Lecture Notes in Production Engineering

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Investigation of fatigue strength of tool steels in sheet-bulk metal forming

Cited by 5 publications

References 11 publications

Improving the Fatigue Strength of Laser Powder Bed‐Fused AISI M3:2 by Hot Isostatic Pressing

Improving the Fatigue Strength of Laser Powder Bed‐Fused AISI M3:2 by Hot Isostatic Pressing

Analysis of the Influence of Surface Modifications on the Fatigue Behavior of Hot Work Tool Steel Components

Constitutive Friction Law for the Description and Optimization of Tailored Surfaces

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