Subsurface damage in milling of lightweight open-cell aluminium foams

Haipeng Qiao; Saurabh Basu; Christopher Saldana; Soundar Kumara

doi:10.1016/j.cirp.2017.04.033

Subsurface damage in milling of lightweight open-cell aluminium foams

Haipeng Qiao, Saurabh Basu, Christopher Saldana, Soundar Kumara

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The present study examined the surface integrity of open cell aluminium foams at full volume using X-ray micro-computed tomography. The structural network was reconstructed in voxel models, for which watershed segmentation and medial axis extraction was utilized to identify interconnected pore (air) and strut (solid) phases. From these models, post-mortem surface integrity characteristics, including pore size, strut bending angle and preferential strut orientation were characterized as a function of controllable parameters of cutting speed, feed rate and depth of cut. Post-mortem characterization of the damage enabled mapping of fundamental failure mechanisms in the mechanics of the subsurface deformation.

Original language	English (US)
Pages (from-to)	125-128
Number of pages	4
Journal	CIRP Annals - Manufacturing Technology
Volume	66
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2017.04.033
State	Published - 2017

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cirp.2017.04.033

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title = "Subsurface damage in milling of lightweight open-cell aluminium foams",

abstract = "The present study examined the surface integrity of open cell aluminium foams at full volume using X-ray micro-computed tomography. The structural network was reconstructed in voxel models, for which watershed segmentation and medial axis extraction was utilized to identify interconnected pore (air) and strut (solid) phases. From these models, post-mortem surface integrity characteristics, including pore size, strut bending angle and preferential strut orientation were characterized as a function of controllable parameters of cutting speed, feed rate and depth of cut. Post-mortem characterization of the damage enabled mapping of fundamental failure mechanisms in the mechanics of the subsurface deformation.",

author = "Haipeng Qiao and Saurabh Basu and Christopher Saldana and Soundar Kumara",

note = "Funding Information: This work was partially supported by Sandia National Laboratories and National Science Foundation CMMI 1254818. Publisher Copyright: {\textcopyright} 2017",

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AU - Basu, Saurabh

AU - Saldana, Christopher

AU - Kumara, Soundar

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Y1 - 2017

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AB - The present study examined the surface integrity of open cell aluminium foams at full volume using X-ray micro-computed tomography. The structural network was reconstructed in voxel models, for which watershed segmentation and medial axis extraction was utilized to identify interconnected pore (air) and strut (solid) phases. From these models, post-mortem surface integrity characteristics, including pore size, strut bending angle and preferential strut orientation were characterized as a function of controllable parameters of cutting speed, feed rate and depth of cut. Post-mortem characterization of the damage enabled mapping of fundamental failure mechanisms in the mechanics of the subsurface deformation.

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Subsurface damage in milling of lightweight open-cell aluminium foams

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