Results 261 to 270 of about 1,076,507 (302)

Turning and Grinding of Hard Alloys

Advanced Engineering Materials, 1999
Hard alloys count among the hard-to-machine materials. Performance characteristics such as high hardness and wear resistance as well as the structural difference between hard phases and metallic matrix impede their machineability. The authors review the effects of the mechanical and thermal energy exerted by turning and grinding processes on the ...
A. Packeisen, W. Theisen
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3D FEA Modeling of Hard Turning

Journal of Manufacturing Science and Engineering, 2002
A practical explicit 3D finite element analysis model has been developed and implemented to analyze turning hardened AISI 52100 steels using a PCBN cutting tool. The finite element analysis incorporated the thermo-elastic-plastic properties of the work material in machining.
Y. B. Guo, C. R. Liu
openaire   +1 more source

Roller burnishing of hard turned surfaces

International Journal of Machine Tools and Manufacture, 1998
Abstract In a hard roller burnishing operation, a hydrostatically borne ceramic ball rolls over the component surface under high pressures. The roughness peaks are flattened and the quality of the workpiece surface is improved. When combined with hard turning, this process provides a manufacturing alternative to grinding and honing operations.
F. Klocke, J. Liermann
openaire   +1 more source

Microstructural Effects in Precision Hard Turning

Manufacturing Science and Engineering, 1996
Abstract Precision hard turning provides an alternative to grinding in some finishing applications. Rapid tool wear, however, remains a bottleneck to the process being economically viable. This experimental study reports microstructural effects on cubic boron nitride (CBN) tool wear in finish hard turning.
Y. Kevin Chou, Chris J. Evans
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Comparison of rotational turning and hard turning regarding surface generation

Production Engineering, 2014
In this paper, two different turning processes namely rotational turning and hard turning are compared to each other regarding surface generation aspects. By experiments it is shown that, with higher feed rates, rotational turning yields same surface quality as hard turning.
Florian Degen, Fritz Klocke, Thomas Bergs, Philipp Ganser   +3 more
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Surface Integrity Generated by Precision Hard Turning

CIRP Annals, 1999
Abstract Rolling contact fatigue tests were conducted to find the effect of precision hard turning. The tests showed that hard turning provides as good a fatigue performance as grinding. Hard turning produces compressive residual stresses in a deep subsurface, which contribute to a long fatigue life.
Y. Matsumoto, F. Hashimoto, G. Lahoti
openaire   +1 more source

Surface integrity of hard-turned M50 steel

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2002
The purpose of this paper is to examine how the surface integrity of M50 steels is affected by hard turning. Tests were conducted on a lathe using different tools and depth of cut. The surface was evaluated in terms of residual stress, surface roughness and microstructure analysis.
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Breaking the hard-to-abate bottleneck in China’s path to carbon neutrality with clean hydrogen

Nature Energy, 2022
Xi Yang, Chris P Nielsen, Shaojie Song
exaly  

Hard-carbon-stabilized Li–Si anodes for high-performance all-solid-state Li-ion batteries

Nature Energy, 2023
Zhenliang Mu, Jiaze Lu
exaly  

EXERIMENTAL ESTIMATION OF HARD TURNING CONTACT CHARACTERISTICS

Bulletin of the National technical university "Kharkiv Polytechnic Institute" Series: Techniques in a machine industry, 2023
When processing hardened steel with a PcBN cutting tool in conditions close to orthogonal cutting, the cutting forces are determined depending on the amount of feed and cutting speed. The value of contact stresses, friction coefficient and the length of contact of the chip with the front surface of the cutter for a cutting speed of 100 m/min were ...
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