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The effects of grain size and feed rate on notch wear and burr formation in wrought Alloy 718

Stefan Cedergren (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Lars Nyborg (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Göran Sjöberg (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Stefan Olovsjö (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik)
The International Journal of Advanced Manufacturing Technology (0268-3768). Vol. 67 (2012), 5-8, p. 1501-1507.
[Artikel, refereegranskad vetenskaplig]

The effect of two different workpiece material grain sizes, 16 and 127 μm, on the depth-of-cut notch wear, chip morphology, and burr formation was studied in a turning operation. A material from the same batch of wrought superalloy Alloy 718 was heat-treated to achieve the two microstructures. The machining was performed at two feed rates, 0.1 and 0.2 mm/revolution. Uncoated cemented carbide tools were used. Both grain size and feed rate were found to influence the chip morphology and the sideflow which were also associated with both the notch wear and the burr formation. The effect of the grain size on the notch wear was larger than that of the feed rate under the tested conditions, with larger grains being more detrimental than smaller ones.

Nyckelord: Inconel 718, Metal cutting, Superalloys, Sideflow, Chip morphology



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Denna post skapades 2013-01-10. Senast ändrad 2016-07-21.
CPL Pubid: 170010

 

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