Civil Engineering Reference
In-Depth Information
Chapter 11
Applications of Electrically Assisted
Manufacturing
Within this topic, a modeling strategy for the EAF technique is explained for both
compression and tension. Both strategies separate the thermal softening effects
from the direct electrical effects and thus produce temperature and force profiles
for their respective processes. However, in the real world, manufacturing pro-
cesses are rarely exclusively compression or tension. Therefore, within this chap-
ter, manufacturing processes that can be applicable to EAF will be explained.
These include bending, stretch forming, machining, friction stir welding, and
miscellaneous other EAF-industrialization research by researchers other than the
authors. In addition, this chapter will include experimental EAF findings for com-
pression, tension, channel formation, springback, and various types of forming.
Furthermore, for example, industrial applications for EAF will be described.
11.1 EAF Bending Application and Model
The tension/compression EAM modeling strategies explained in previous chapters
can be applied to other EAM-applicable processes. Specifically, this same mod-
eling approach was instituted to predict forming loads in an electrically assisted
bending (EAB) process [
1
,
2
]. Within this section, an analysis of how to model an
EAB process will be explained, assumptions of the model will be provided, a clas-
sical bending process will be described, an analytical piece-wise model for EAB
will be presented, the solution schematic will be described, the experimental setup
and procedure will be explained, thermal measurements for an EAB process will
be illustrated, the EAB model will be validated using experiments, the effects of
electricity on a bending process will be given, and conclusions will be summarized
(Fig.
11.1
).
The overall objective of the EAB model is to establish a closed-form solution
that describes the bending force specific to a certain deformation, while pulsed
