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Understanding Deformation on Machined Surfaces

[+] Author Affiliations
Yang Guo

M4 Sciences LLC, West Lafayette, IN

Dinakar Sagapuram, Anirban Mahato, Kevin P. Trumble, Srinivasan Chandrasekar

Purdue University, West Lafayette, IN

Rachid M’Saoubi

Seco Tools AB, Fagersta, Sweden

Paper No. MSEC2014-4003, pp. V001T01A007; 7 pages
doi:10.1115/MSEC2014-4003
From:
  • ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
  • Volume 1: Materials; Micro and Nano Technologies; Properties, Applications and Systems; Sustainable Manufacturing
  • Detroit, Michigan, USA, June 9–13, 2014
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-4580-6
  • Copyright © 2014 by ASME

abstract

The deformation history and state of machined surface in cutting of metals are characterized using high-speed image analysis, complemented by hardness, microstructure and texture measurements. Large surface strains are observed, due to the severe plastic deformation (SPD) intrinsic to chip formation. The deformation history and microstructure/texture of the chip and surface are found to be equivalent. The surface strain distribution is shown to scale with undeformed chip thickness and influenced by the rake angle. Based on the observations, and related prior work on process-microstructure-property correlations, a framework is suggested for controlling deformation levels, microstructure and texture on machined surfaces. The results offer scope also for validation of machining simulations and multi-scale modeling of machining.

Copyright © 2014 by ASME
Topics: Deformation

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