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Engineering Materials Technology, 2nd Edition
book

Engineering Materials Technology, 2nd Edition

by William Bolton
October 2013
Intermediate to advanced content levelIntermediate to advanced
468 pages
20h 15m
English
Newnes
Content preview from Engineering Materials Technology, 2nd Edition
196 Engineering Materials Technology
Free-cutting mild steel 100
Free-cutting a or ß brass 200 to 400
The machinability of a metal can be improved if its ductility is decreased.
Work hardening can make an improvement. Some multi-phase alloys have
good machinability as the insoluble phase can provide discontinuities within
the material and assist in breaking up a continuous chip to give small chips.
The addition of a small amount of lead to a mild steel improves its
machinability. For optimum machinability, the workpiece material must have
low ductility and also low hardness.
Problems
1 Distinguish between cold and hot working processes.
2 Describ ...
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Publisher Resources

ISBN: 9781483141077