Journal article
Physics-Based Microstructure Simulation for Drilled Hole Surface in Hardened Steel
Journal of manufacturing science and engineering, Vol.136(4), p.44504
08/01/2014
DOI: 10.1115/1.4027732
Abstract
For a fully hardened steel material, hole surface microstructures are often subject to microstructural transition because of the intense thermomechanical loading. A white layer can be formed on the surface of a drilled hole of hardened carbon steels, which results from two mechanisms: thermally driven phase transformation and mechanical grain refinement due to severe plastic deformation. In this study, a multistep numerical analysis is conducted to investigate the potential mechanism of surface microstructure alterations in hard drilling. First, three-dimensional (3D) finite element (FE) simulations are performed using a relative coarse mesh with advantedge for hard drilling of AISI 1060 steel to achieve the steady-state solution for thermal and deformation fields. Defining the initial condition of the cutting zone using the 3D simulation results, a multiphysics model is then implemented in two-dimensional (2D) coupled Eulerian-Lagrangian (CEL) FE analysis in abaqus to model both phase transformation and grain refinement at a fine mesh to comprehend the surface microstructure alteration. Experimental results are used to demonstrate the capability of this multiphysics model to predict critical surface microstructural attributes. Copyright © 2014 by ASME.
Details
- Title: Subtitle
- Physics-Based Microstructure Simulation for Drilled Hole Surface in Hardened Steel
- Creators
- Ninggang Shen - University of IowaHongtao Ding - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of manufacturing science and engineering, Vol.136(4), p.44504
- Publisher
- ASME
- DOI
- 10.1115/1.4027732
- ISSN
- 1087-1357
- eISSN
- 1528-8935
- Language
- English
- Date published
- 08/01/2014
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196501702771
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