The present invention aims to reduce cropping losses in reversible multi-pass hot rolling of flat-ended blooms into bars by designing preform end shapes using finite element analysis. A three-dimensional simulation predicted defective end shapes after rolling, similar to actual observations. Reverse material tracking was applied to finite element simulations to determine approximate preform end shapes, which were then used in further simulations. The results showed a considerable reduction in cropping losses.
Type of IP
Faculty
Category of Patent
Department
This technology reduces material waste in steel manufacturing, promoting sustainability and more efficient resource use. It lowers production costs, potentially reducing consumer prices, and supports environmental conservation by minimizing the industry's footprint.
- Utilization of three-dimensional finite element analysis to simulate reversible multi-pass hot rolling
- Application of reverse material tracking to identify and design preform end shapes
- Iterative process to refine preform shapes, leading to reduced end defects and cropping losses
- Significant reduction in cropping losses (up to 87.3% reduction)
- Improved yield and reduced waste in metal forming processes
- Potential for substantial material and monetary savings
9
The technology has been simulated and tested, demonstrating its effectiveness in reducing cropping losses. Further iterations and optimizations are possible for even better results.
Steel manufacturing, Metal forming and processing
- Steel manufacturing and processing industries
- Hot rolling mills producing bars from blooms