Please use this identifier to cite or link to this item: https://doi.org/10.1504/IJNM.2009.027425
Title: Numerical and experimental analysis of the tool edge radius effect in micromachining of ferrous materials
Authors: Woon, K.-S.
Rahman, M. 
Liu, K. 
Keywords: Chip formation mechanism
Contact interaction
Effective rake angle
Ferrous materials
Finite element analysis
Micro/miniaturised moulds
Micromachining
Precision engineering
Steel
Tool edge radius
Issue Date: 2009
Source: Woon, K.-S.,Rahman, M.,Liu, K. (2009). Numerical and experimental analysis of the tool edge radius effect in micromachining of ferrous materials. International Journal of Nanomanufacturing 3 (3) : 189-211. ScholarBank@NUS Repository. https://doi.org/10.1504/IJNM.2009.027425
Abstract: The tool edge radius effect in micromachining of ferrous materials was investigated extensively using advanced numerical and experimental approaches. The results revealed that the best surface finishing could be obtained at a critical combination of undeformed chip thickness and tool edge radius where material is removed through severe plastic deformation associated with an effective negative rake angle. The chip formation exhibits an extrusion-like behaviour as driven by intense deviatoric and hydrostatic stresses that are highly localised around the deformation zone. The changes in the chip formation behaviour over the range of a/r = 0.05-2.0 are indicated by four stages of machining force distributions. It is worth noting that the tool edge radius effect has a great influence on material deformations and contact interaction in tool-based micromachining. Thus, an analytical contact length model for tool-based micromachining is proposed. Copyright © 2009, Inderscience Publishers.
Source Title: International Journal of Nanomanufacturing
URI: http://scholarbank.nus.edu.sg/handle/10635/60919
ISSN: 17469392
DOI: 10.1504/IJNM.2009.027425
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

14
checked on Dec 8, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.