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Experimental research in the Advanced Manufacturing Processes Lab is focused on analysis
of the mechanics and physics of machining. The equipment and capabilities are aimed
at direct observation of the primary and secondary shear zones, from the side as well
as through transparent cutting tools. Digital image correlation of high speed photographic
images and infrared thermography are used to obtain the velocity and temperature fields,
which serve as inputs for developing high strain rate constitutive models and for
comparison with finite element simulations. These in turn are used to refine analytical
models of machining, thereby furthering our understanding of machining. This may lead
to benefits such as tool and process design leading to improved productivity, tool
life and part quality.
The lab also supports research in sheet metal forming. The capabilities have been
used to study the effect of intermediate heat treatments and to develop FLDs using
in-situ observation and 3D DIC. These serve as inputs to finite element analysis based
studies of the friction distribution, and for evaluation of the accuracy of spingback
simulations. The lab also supports a new initiative on determination of material properties
and friction during the high temperature forming of superalloys.
The lab's facilities are also used for lab modules on bulk forming, shearing, FLD
determination, orthogonal machining and superfinishing in courses.
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