Asymmetric Rolling Cassette Support for Work Roll Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional asymmetric rolling technologies face issues with work roll deformation due to strong reaction forces, leading to defects like uneven waves, bucking, and displacement, which compromise the quality of the rolled material.
Innovation Solution
An asymmetric rolling apparatus with a cassette device that supports the first work roll in the longitudinal direction, using a cassette body, idle rolls, guide rolls, and push roll units to maintain alignment and control the rolling process, ensuring uniform pressure and minimizing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If asymmetric rolling is performed using a small radius work roll, then shear deformation is easily generated in materials with poor formability, but the work roll is easily deformed due to strong reaction force in the longitudinal direction
Solution Approach 1:
A cassette device is introduced as an intermediary support structure between the small radius work roll and the rolling force. The cassette device includes support rolls that contact the work roll from both sides, distributing the longitudinal reaction force and preventing work roll deformation while maintaining the asymmetric rolling effect for improved material formability
2Manufacturing precision
If asymmetric rolling is performed using a small radius work roll, then shear deformation is easily generated, but various defective phenomena such as uneven wave, bucking, uneven thickness, distortion, or camber occur on the material
Solution Approach 1:
The cassette device acts as a mediator that stabilizes the work roll position and prevents excessive or uneven deformation. By supporting the work roll from both sides with adjustable support rolls, it ensures uniform force distribution, preventing defective phenomena like uneven waves, bucking, and distortion while maintaining the desired shear deformation for material processing
3Manufacturing precision
If asymmetric rolling is performed using a small radius work roll, then shear deformation is generated, but the work roll is displaced from original position or broken
Solution Approach 1:
The cassette device serves as a reliable intermediary support system that prevents work roll displacement and breakage. The support rolls within the cassette device contact the work roll from both sides, providing lateral support and maintaining the work roll in its original position, thereby ensuring operational reliability while maintaining the asymmetric rolling effect
Solution Approach 2:
The cassette device provides beforehand cushioning by pre-positioning support rolls that can absorb and distribute the strong reaction forces before they cause work roll displacement or breakage. This preventive support mechanism ensures the work roll remains stable throughout the asymmetric rolling process
Data Source
AI summary
The present disclosure relates to an asymmetric rolling apparatus and a cassette device capable of enhancing a physical property of materials and may include: a first work roll contacting a first surface of a material to be rolled; a second work roll contacting a second surface of the material to be rolled and having a second radius greater than a first radius of the first work roll so as to asymmetrically roll the material to be rolled; a drive roll contacting the first work roll and formed above or below the first work roll so as to drive the first work roll; a driving device driving the second work roll or the drive roll; a cassette device contacting the first work roll and supporting the first work roll in a longitudinal direction of the material.