| 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 |
Instability Analysis in Incremental Rotary Forming of Tube Flanges |
| Author(s) |
Bhaskaran Krishnamurthy, Kyle Watt, Alastair Conway, Martin Tuffs, Paul Blackwell, Olga Bylya |
| On-Site Speaker (Planned) |
Bhaskaran Krishnamurthy |
| Abstract Scope |
Rotary forming is an exciting alternative for forming flanges of different angles from seamless tubes of high-strength materials. True to its incremental nature, the process offers great flexibility, but the issues encountered are atypical and complex. One such issue observed in experimental trials is the internal buckling of tubes during specific instances of flange formation. The origin of this instability is non-trivial and classical finite-element models fail to capture this instability. To analyse and understand the problem, systematic experimental trials were carried out using different tube thickness, tube materials and tool kinematics. This paper summarises the results from a critical analysis to establish (1) a criteria for quantifying the instability and identifying the instances of its occurrence, (2) quantify the effect of tube thickness, (3) identify the contributing factors with respect to material properties, and (4) understand the influence of tool path in the flange forming stage. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |