| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
The Effect of Ultrasonic Vibration on Material Movement in Incremental Sheet Forming |
| Author(s) |
Randy Cheng, Ankush Bansal, Jiarui Kang, Xun Liu, Alan Taub |
| On-Site Speaker (Planned) |
Randy Cheng |
| Abstract Scope |
Applied mechanical vibration in various manufacturing processes, usually at ultrasonic frequencies of 20kHz, has been shown to influence the forming and friction forces. The material softening behavior under superimposed ultrasonic vibrations is known as acoustoplasticity. This paper investigates the effect of acoustoplastic softening phenomenon on material movement in incremental forming of AA7075 sheets. A 45⁰ cone is formed using a two-point incremental forming strategy (TPIF). Added ultrasonic vibration shows higher amount of material movement, which is supported through quantitative measurements including greater bulge height, surface profilometry, and thickness distribution around the tool contact area. Surface roughness measurements, relative to the depth of the geometry, increases with progressive forming. This coincides with the notion of greater material movement, accumulation, and surface deformation. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |