Open AccessSpringback compensation of high strength 21-6-9 tube after NC bending
Author(s) -
Jun Fang,
Fang Ouyang,
Shiqi Lu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012045
Subject(s) - bending , bend radius , compensation (psychology) , tube (container) , finite element method , radius , materials science , structural engineering , pure bending , composite material , engineering , computer science , psychology , computer security , psychoanalysis
In order to achieve high strength 21-6-9 (HS-21-6-9) tube numerical control (NC) bending precision forming, the springback law and compensation should be studied for the HS-21-6-9 tube NC bending. By using a finite element (FE) simulation method, the effects of bending angle θ on springback angle Δ θ and springback radius Δ R of the HS-21-6-9 tube NC bending were investigated. The results show that the Δ θ increases linearly with the increase of the θ , and the relationship between the Δ θ and the θ can be described as Δ θ =2.47179+0.02208 θ . The Δ R decreases along the curve with the increase of the θ , and the relationship between the Δ R and the θ can be described as Δ R =33.86587 θ −0.64431 . The compensation methodology is proposed considering the Δ θ and the Δ R simultaneously, and the viability of the methodology is validated by an example.