Bookcover of Surface Topography Effects on Metal Flow During Hot Compression
Booktitle:

Surface Topography Effects on Metal Flow During Hot Compression

LAP LAMBERT Academic Publishing (2016-03-31 )

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ISBN-13:

978-3-659-86285-4

ISBN-10:
3659862851
EAN:
9783659862854
Book language:
English
Blurb/Shorttext:
An investigation was conducted to study the effects of die surface topography, specifically surface roughness and lay, on metal flow and the friction factor under lubricated hot compression. 6061-T6 aluminum rings and square bar stock specimens were compressed on H-13 tool steel platens machined with a unidirectional lay pattern to six different roughnesses between a R 10 and 240 μin. A hydraulic press mounted with an experimental die set was used for all testing. Repeated trials were conducted using high temperature vegetable oil and boron nitride lubricants. Metal flow was quantified as a function of surface roughness, lay orientation, and die temperature. Approximate plane strain cigar test specimens were compressed at platen temperatures of 300 °F and 400 °F and at orientations of 0°, 45°, and 90° between the longitudinal axis and unidirectional platen surface lay. The friction factor was assessed using ring compression tests under varying platen roughness conditions and die temperatures between 250 °F and 400 °F. Results indicate metal flow is optimized at low platen roughnesses and parallel surface lay orientations of the platen. Temperature was not found to be influential.
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
Justin Kurk
Number of pages:
128
Published on:
2016-03-31
Stock:
Available
Category:
Mechanical engineering, manufacturing technology
Price:
61.90 €
Keywords:
Forging, Friction, Metal flow, surface roughness, Surface Lay

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