Influence of ultrasonics on upsetting of a model paste.
This paper describes a preliminary study of the influence of ultrasonics on the boundary conditions associated with the equipment walls in a soft solid forming operation using Plasticine as a material model. A detailed finite element analysis is described involving the upsetting of a cylindrical specimen between two parallel rigid dies with kinematics and ultrasonic oscillatory loading conditions. A series of squeeze flow experiments has been conducted to validate the finite element models. The oscillation parameters were measured using a 3D laser Doppler vibrometer to complement the measurement of reaction forces.
Huang
Zhihong
Z
Department of Mechanical Engineering, University of Glasgow, UK.
Lucas
Margaret
M
Adams
Michael J
MJ