Affiliation:
1. R.M.K. College of Engineering and Technology, Department of
2. Sri Krishna College of Technology, Department of Mechanical
3. Saveetha School of Engineering
Abstract
<div class="section abstract"><div class="htmlview paragraph">Equal Channel Angular Pressing is proven to produce ultrafine-grained to
nano-structured materials and is most advantageous in comparison with most
severe plastic deformation processes, due to its multi-pass capability. The
channel angle is the most dominant process parameter, depending on which the
property of the processed material varies significantly. Hence to exploit the
advantage of this process and to fabricate materials with tailor-made
properties, it is desirable to have access to a wide range of channel angles.
Limitations in existing designs restrict this to one fixed angle per die and a
variation of the angle demands an entirely new die. Hence a novel die geometry
is proposed, where the exit channel is made detachable from the parent die
block, permitting flexibility of channel angle. Such a design cuts down the cost
of fabricating a die setup for the desired channel angle by as much as 80%, in
comparison with the traditional split die configuration where a whole new die
block has to be machined.</div></div>