Influence of subsurface properties on the application behavior of hybrid components

Breidenstein, Bernd; Denkena, Berend; Meyer, Kolja; Prasanthan, Vannila

doi:10.1016/j.procir.2020.02.116

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…Besides pure shaping, machining is used to manipulate the properties of the surfaces of hybrid components [51,52]. However, these aspects are not yet relevant for the current state of the CAEE.…”

Section: Manufacturing Processes For Multi-materials Partsmentioning

confidence: 99%

Hybrid Bulk Metal Components

2021

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Section: Manufacturing Processes For Multi-materials Partsmentioning

confidence: 99%

Hybrid Bulk Metal Components

2021

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“…In some cases, the cutting process is followed by a mechanical surface treatment [19] such as deep rolling, shot peening [20] or machine hammer peening [21] to further improve the surface roughness and to introduce strain hardening as well as compressive residual stresses [22]. Although these processes lead to an extension of the process chain, they are generally accompanied by an improvement in fatigue strength and, therefore, an extended component lifetime [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Sequential Processing of Cold Gas Sprayed Alloys by Milling and Deep Rolling

et al. 2021

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Cold gas spraying (CS) is a solid-state material deposition process which, in addition to the flexible repair of individual component areas, also enables the build-up of larger samples. The layers are created on a substrate by the impact-induced bonding of highly accelerated micrometer particles. Since melting does not occur, the material composition can be varied flexibly and independently of material-specific melting points. In this work, the influence of the described forming process on subsequent machining by milling and deep rolling is investigated. The process forces measured during milling and the surface topography after milling and deep rolling were influenced by the material composition and the CS-related properties, e.g., high material hardness or particle bonding. In contrast to prior assumptions, deep rolling was shown to have no influence on the determined hardness depth profile for the investigated materials. Future work will focus on additional analyses, such as the determination of half-widths, to obtain further insight on the material behavior.

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“…However, current research results show that too-high residual compressive stresses can also lead to a shorter service life [27,28]. A cause for this is not yet known and currently represents a research gap [29].…”

Section: Introductionmentioning

confidence: 99%

Production-Related Surface and Subsurface Properties and Fatigue Life of Hybrid Roller Bearing Components

Breidenstein

Denkena

Krödel

et al. 2020

Metals

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By combining different materials, for example, high-strength steel and unalloyed structural steel, hybrid components with specifically adapted properties to a certain application can be realized. The mechanical processing, required for production, influences the subsurface properties, which have a deep impact on the lifespan of solid components. However, the influence of machining-induced subsurface properties on the operating behavior of hybrid components with a material transition in axial direction has not been investigated. Therefore, friction-welded hybrid shafts were machined with different process parameters for hard-turning and subsequent deep rolling. After machining, subsurface properties such as residual stresses, microstructures, and hardness of the machined components were analyzed. Significant influencing parameters on surface and subsurface properties identified in analogy experiments are the cutting-edge microgeometry, S¯, and the feed, f, during turning. The deep-rolling overlap, u, hardly changes the residual stress depth profile, but it influences the surface roughness strongly. Experimental tests to determine fatigue life under combined rolling and rotating bending stress were carried out. Residual stresses of up to −1000 MPa, at a depth of 200 µm, increased the durability regarding rolling-contact fatigue by 22%, compared to the hard-turned samples. The material transition was not critical for failure.

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Influence of subsurface properties on the application behavior of hybrid components

Cited by 5 publications

References 9 publications

Hybrid Bulk Metal Components

Hybrid Bulk Metal Components

Sequential Processing of Cold Gas Sprayed Alloys by Milling and Deep Rolling

Production-Related Surface and Subsurface Properties and Fatigue Life of Hybrid Roller Bearing Components

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