Cold surface hardening

Brinksmeier, E.; Garbrecht, M.; Meyer, Daniel

doi:10.1016/j.cirp.2008.03.100

Cited by 49 publications

(17 citation statements)

References 11 publications

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“…In general, the higher the plastic deformation and the lower the temperature the more martensite is formed [2]. Deep rolling is already applied successfully for deformation induced surface hardening [3]. For a further increase in productivity more manufacturing processes have to be substituted.…”

Section: Introductionmentioning

confidence: 99%

Influence of Cutting Edge Geometry on Deformation Induced Hardening when Cryogenic Turning of Metastable Austenitic Stainless Steel AISI 347

et al. 2016

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In recent years deformation induced surface hardening was carried out to enhance the component performance of metastable austenitic steels. To be able to induce such a phase transformation from austenite to martensite in the workpiece surface layer, high mechanical loads and low process temperatures are required. Therefore, cryogenic CO2-snow cooling is an appropriate method to assure a low heat influence on the workpiece. High mechanical loads can be obtained by high feed. However, this causes relatively rough surfaces due to the process kinematics. In this context, the influence of cutting edge geometry on deformation induced surface hardening and resulting surface roughness is investigated. With a variation of the geometry of the cutting edge, especially the cutting edge radius, mechanical loads and thus the amount of martensite formed were adjustable.

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Section: Introductionmentioning

confidence: 99%

Influence of Cutting Edge Geometry on Deformation Induced Hardening when Cryogenic Turning of Metastable Austenitic Stainless Steel AISI 347

et al. 2016

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“…Whole process chains for the production of surface hardened components such as grind hardening [9,10] and cold surface hardening [11][12][13], both avoiding an energy consuming heat treatment step, could be assessed regarding their overall power consumption.…”

Section: Discussionmentioning

confidence: 99%

A discrete-event simulation approach to predict power consumption in machining processes

Larek

Brinksmeier

Meyer

et al. 2011

Prod. Eng. Res. Devel.

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Whereas in the past the sustainable use of resources and the reduction of waste have mainly been looked at from an ecological point of view, resource efficiency recently becomes more and more an issue of cost saving as well. In manufacturing engineering especially the reduction of power consumption of machine tools and production facilities is in the focus of industry, politics and research. Before power consumption in machining processes can be reduced it is necessary to quantify the amount of energy needed, to identify energy consumers and to determine the available degrees of freedom for an optimization. Simulation can be an adequate alternative to the measurement of power consumption during machining operation. However, many of the available simulation methods are not suitable for this task. This paper describes an approach based on the discrete-event simulation, which is known mainly from the simulation of logistical systems. It has been adapted to model machining operations and to generate workpiece-specific power consumption profiles and energy footprints. Two-axis turning in a CNC machining centre is shown exemplary. The aim is to provide a basis for further applications such as the simulation, comparison and optimization of power consumption in process chains and production systems in combination with logistical models.

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“…But, the improvement of the surface properties is usually based on pure strain hardening and the generation of compressive residual stresses. An innovative method which combines mechanical techniques with a martensitic transformation of the surface layer is cold surface hardening [17]. This technique is suitable for highly alloyed steels such as X210Cr12 (AISI D3) or X155CrMoV12-1 (AISI D2) with a high content of retained austenite.…”

Section: Cold Surface Hardeningmentioning

confidence: 99%

Nondestructive characterization of the surface integrity of cold surface hardened components

Meyer

Kruse²,

Böbe

et al. 2010

Prod. Eng. Res. Devel.

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Nondestructive characterization of surface and subsurface properties is of increasing interest in industry and science. As destructive methods are inadequate for testing large devices (e.g. gear wheels for wind engines) or small series, nondestructive techniques for the assessment of their surface integrity are mandatory. Especially surface hardened components have to be examined in practice, as they tend to show varying properties regarding surface hardness, hardness penetration depth and residual stress profiles. Since the surface integrity has a major influence on the functional performance of components, assessment and monitoring of the surface properties is crucial. In this study, the results of a new technique for surface hardening (cold surface hardening) were investigated for the first time applying an emerging nondestructive measuring method: the photothermal near-surface layer characterization.

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Cold surface hardening

Cited by 49 publications

References 11 publications

Influence of Cutting Edge Geometry on Deformation Induced Hardening when Cryogenic Turning of Metastable Austenitic Stainless Steel AISI 347

Influence of Cutting Edge Geometry on Deformation Induced Hardening when Cryogenic Turning of Metastable Austenitic Stainless Steel AISI 347

A discrete-event simulation approach to predict power consumption in machining processes

Nondestructive characterization of the surface integrity of cold surface hardened components

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