Material Behaviour of Armco-Iron and AISI 4140 at High Speed Deformation during Machining

Frederik Zanger; Michael Gerstenmeyer

doi:10.4028/www.scientific.net/AMR.1018.161

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Investigations on Cryogenic Turning to Achieve Surface Hardening of Metastable Austenitic Steel AISI 347
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Material Behaviour of Armco-Iron and AISI 4140 at High Speed Deformation during Machining
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Robot-Assisted Vibration Polishing of NiCo Retroreflector Moulds
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1018Material Behaviour of Armco-Iron and AISI 4140 at...

Material Behaviour of Armco-Iron and AISI 4140 at High Speed Deformation during Machining

Abstract:

During machining of metals high temperatures and deformations occur at the surface layers leading to changing component states. Depending on the thermal and mechanical set of stress microstructural changes like residual stresses and grain refinement can be found. Grain refinement is influenced by the amount of deformation. In the present investigations high deformations of the surface layers are realized by using the cutting tool in opposed direction resulting in high negative rake angles. This test setup is used to investigate the material behaviour of Armco-Iron and AISI 4140 at different cutting velocities during machining. Furthermore the flow stresses at different strain rates and temperatures were determined by means of high speed tensile tests. The flow behaviour of the investigated materials is used to explain the results of the machining experiments.

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Periodical:

Advanced Materials Research (Volume 1018)

Pages:

161-166

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1018.161

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Online since:

September 2014

Authors:

Frederik Zanger*, Michael Gerstenmeyer

Keywords:

Machining, Material, Surface Modification

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