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Next Generation Insert for Forced Coolant Application in Machining of Inconel 718
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. (PTW)ORCID iD: 0000-0002-0895-3303
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. (PTW)
GKN Aerospace Engine Systems AB, Trollhättan, Sweden.
2016 (English)In: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 836-837, 340-347 p.Article in journal (Refereed) Published
Abstract [en]

Machining technology has undergone an extensive evolution throughout the last decades in its capability to machine hard-to-cut material. This paper will discuss about the next generation insert with cooling feature coupled with forced coolant in machining Inconel 718. The geometry of the insert was changed in a way which has enlarged the surface area approximately 12% compared to regular insert named as nusselt insert. The idea applied in “nusselt insert” was the relation of increase in surface area to heat dissipation. Forced coolant application has become a way to improve existing metal cutting concepts and improve their current material removal rates without any need for a reengineered machining process. Experiments conducted on the inserts is that the first experiment of its kind in machining technology together with forced coolant and tested in four different inserts. The primary focus of the work was the investigation of the relation between the heat dissipation with an increase in surface area/mass ratio in the cutting interface based on its influence on tool wear. The experimental results showed the nusselt insert have better ability for heat dissipation which has led to significant reduce in tool wear and successfully facing Inconel 718 at vc 105 m/min, f 0.3 mm/rev and ap 1 mm where the regular insert had a catastrophic failure at vc 90 m/min, f 0.1 mm/rev and ap 1 mm. Nusselt insert has shown to increase MRR significantly compared to regular insert.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2016. Vol. 836-837, 340-347 p.
Keyword [en]
Tool wear, Heat dissipation, Inconel 718, Turning, Forced Coolant Application
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering; Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-8767DOI: 10.4028/www.scientific.net/MSF.836-837.340ScopusID: 2-s2.0-84958074091OAI: oai:DiVA.org:hv-8767DiVA: diva2:877541
Conference
12th International Conference on High Speed Machining, HSM 2015; Nanjing; China; 18 October 2015 through 20 October 2015
Available from: 2015-12-07 Created: 2015-12-07 Last updated: 2016-10-21Bibliographically approved

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Tamil Alagan, NageswaranBeno, Tomas
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