A deformation analysis and experimental study for a novel full kinematic incremental forming

Abstract This paper proposes a novel full kinematic incremental forming process, called three opposite point incremental forming (TOPIF), in which one pair of main opposite forming tools and two pairs of auxiliary opposite tools as the supporting dynamic die are utilized to perform the components along a predefined path. Compared to the conventional kinematic incremental sheet forming (KISF) and SPIF, the process can effectively control the local deformation, improve geometric accuracy and increase the ability to form complex curved surface. The deformation analysis on TOPIF is the key to control the local deformation. A deformation analysis and the strain distributions are proposed based on a plane strain deformation mode. The results by the deformation analysis of a truncated conical shape are in accord with experimental values for 1 mm Al5052.

[1]  Dongkai Xu,et al.  Accumulative-DSIF strategy for enhancing process capabilities in incremental forming , 2012 .

[2]  Niels Bay,et al.  Theory of single point incremental forming , 2008 .

[3]  Horst Meier,et al.  Two Point Incremental Forming with Two Moving Forming Tools , 2007 .

[4]  Bert Lauwers,et al.  Study on the achievable accuracy in single point incremental forming , 2007 .

[5]  H. Iseki,et al.  An approximate deformation analysis and FEM analysis for the incremental bulging of sheet metal using a spherical roller , 2001 .

[6]  Jian Cao,et al.  Improvement of Geometric Accuracy in Incremental Forming by Using a Squeezing Toolpath Strategy With Two Forming Tools , 2011 .

[7]  W. C. Emmensa,et al.  The technology of Incremental Sheet Forming – A brief review of the history , 2010 .

[8]  Aldo Attanasio,et al.  Asymmetric two points incremental forming: Improving surface quality and geometric accuracy by tool path optimization , 2008 .

[9]  Matthieu Rauch,et al.  Tool path programming optimization for incremental sheet forming applications , 2009, Comput. Aided Des..

[10]  Jong-jin Park,et al.  Fundamental studies on the incremental sheet metal forming technique , 2003 .

[11]  S J Yoon,et al.  Investigation into a new incremental forming process using an adjustable punch set for the manufacture of a doubly curved sheet metal , 2001 .

[12]  Matthias Kleiner,et al.  Dyna-Die: Towards Full Kinematic Incremental Forming , 2008 .

[13]  Jian Cao,et al.  Improvement of Geometric Accuracy in Incremental Forming by Using a Squeezing Toolpath Strategy With Two Forming Tools , 2011 .