Waterjet Machining and Peening of Metals

[+] Author and Article Information
M. Ramulu, S. Kunaporn

Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195

D. Arola

University of Maryland, Baltimore County, MD

M. Hashish, J. Hopkins

Flow International, Kent, WA 98032

J. Pressure Vessel Technol 122(1), 90-95 (Aug 31, 1999) (6 pages) doi:10.1115/1.556155 History: Received June 25, 1999; Revised August 31, 1999
Copyright © 2000 by ASME
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Waterjet peening experimental setup
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Graphic representation of the eroded surface specimens of (a) ML-1, (b) ML-2, (c) ML-3, (d) ML-4, (e) ML-5, (f ) ML-6, and (g) ML-7
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Residual stresses versus standoff distance
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Microhardness distribution of specimens
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Surface profile and average roughness resulting from WJ peening of nozzle B
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Depth of subsurface deformation from Vickers hardness measurements, cutting conditions AWJ A: (a) IDR and (b) SCR
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Average roughness resulting from AWJ machining: (a) AWJ A, (b) AWJ B, and (c) AWJ C
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Typical surface profiles of the AWJ-machined metals
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Microscopic feature of three regions on the AWJ-machined surface of 7075-T6
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Micrographs of water-peened surfaces using nozzle B under different standoff distances with high pressure: (a) SOD=36 mm, (b) SOD=53 mm, (c) SOD=76 mm, (d) SOD=102 mm, and (e) unpeened surface



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