Ultrasonic Tube Hydroforming

Tube hydroforming is mainly used for automotive
applications, aircraft industries and household
appliances. Its main advantages are: part
consolidation, weight reduction, fewer secondary
operations, and tighter tolerances. However, tube
hydroforming is a complex process involving the
interaction of many variables such as loading paths,
material formability, and tribological conditions.
Improvement of formability, which is defined as the
amount of stretch or deformation without any failure
during the process, is extremely important since it
controls the applicability of the process.
This monograph presents ultrasonic technology as a
method of improving formability and tribological
conditions. Some issues addressed in this monograph
are: understanding the mechanics of deformation in
tube hydroforming and identifying the variables that
influence formability, developing an analytical model
for the deformation mechanism for both classical and
ultrasonic tube hydroforming, and establishing
evaluation criteria for quantifying the improvement
in formability when ultrasonic vibrations are
superimposed.

Autorentext

Dr. Cristina Bunget: Mechanical Engineering, Ph.D. at NorthCarolina State University, Raleigh NC, USA.

Klappentext

Tube hydroforming is mainly used for automotiveapplications, aircraft industries and householdappliances. Its main advantages are: partconsolidation, weight reduction, fewer secondaryoperations, and tighter tolerances. However, tubehydroforming is a complex process involving theinteraction of many variables such as loading paths,material formability, and tribological conditions.Improvement of formability, which is defined as theamount of stretch or deformation without any failureduring the process, is extremely important since itcontrols the applicability of the process. This monograph presents ultrasonic technology as amethod of improving formability and tribologicalconditions. Some issues addressed in this monographare: understanding the mechanics of deformation intube hydroforming and identifying the variables thatinfluence formability, developing an analytical modelfor the deformation mechanism for both classical andultrasonic tube hydroforming, and establishingevaluation criteria for quantifying the improvementin formability when ultrasonic vibrations aresuperimposed.