This paper develops a numerical technique for determining the shape sensitivity parameters in steady metalforming processes such as drawing and rolling. The adjoint method is applied to the discrete non-linear system of equations in the finite element model in order to determine the discrete matrix
Blank shape analysis for heavy gauge metal forming
β Scribed by G.N. Blount; P.R. Stevens
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 429 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0924-0136
No coin nor oath required. For personal study only.
β¦ Synopsis
A method is described for mapping a three-dimensional computer modelled surface into the two-dimensional plane, in order to predict blank shapes. Forming by press-brake bending is evaluated. Geometrically unfolding the surface enables strains to be predicted. These are used to adjust the intial constant area mapping hypothesis.
Practical strain analysis is also conducted.
π SIMILAR VOLUMES
## Abstract During the manufacture of diskβlike gearwheel blanks made of 20MnCr6 (SAE 5120) a characteristic distortion behavior was observed which has been related to the forging process. The steel showed a typical banded structure and a distribution of chemical elements (segregations) perpendicul