TY - JOUR

T1 - Analytical, numerical and experimental investigations of a ball spinning expansion process

AU - Kuss, Mario

AU - Buchmayr, Bruno

PY - 2015

Y1 - 2015

N2 - To manufacture lightweight tubes, fabricators increasingly use incremental forming processes like radial forming or flow forming. The use of such processes requires a profound knowledge of material properties and process understanding.A special process modification of flow forming is the ball spinning expansion process. It is generally used to reduce the tangential forces to a drift. A simple analytical method to calculate the forming forces and to generate process understanding of parameter variations is missing.The following paper provides an overview about ball spinning and an analytical calculation method for a ball spinning expansion process. This method is validated by experiments and FEM simulations and the specific characteristics of ball spinning is described. Finally, the result of the parameter variations are illustrated in order to predict forming forces and stress state more easily.

AB - To manufacture lightweight tubes, fabricators increasingly use incremental forming processes like radial forming or flow forming. The use of such processes requires a profound knowledge of material properties and process understanding.A special process modification of flow forming is the ball spinning expansion process. It is generally used to reduce the tangential forces to a drift. A simple analytical method to calculate the forming forces and to generate process understanding of parameter variations is missing.The following paper provides an overview about ball spinning and an analytical calculation method for a ball spinning expansion process. This method is validated by experiments and FEM simulations and the specific characteristics of ball spinning is described. Finally, the result of the parameter variations are illustrated in order to predict forming forces and stress state more easily.

U2 - 10.1016/j.jmatprotec.2015.05.010

DO - 10.1016/j.jmatprotec.2015.05.010

M3 - Article

VL - 224.2015

SP - 213

EP - 221

JO - Journal of materials processing technology

JF - Journal of materials processing technology

SN - 0924-0136

IS - October

ER -