Manhart How to consider the influence of materials on accuracy when evaluating the precision performance of a rolling machine?

When evaluating the accuracy performance of the plate rolling machine, the influence of materials on accuracy is a factor that cannot be ignored. In order to comprehensively consider the impact of materials on accuracy, we can present and summarize them in the following aspects:
###1. Physical properties of materials
** * Yield strength * *: The yield strength of a material directly affects the rolling pressure required by the rolling machine. Materials with high yield strength require higher rolling pressure to achieve the desired rolling effect. If this is not taken into account, it may lead to defects or deformation of edges and corners during the machining process.
*Tempering brittleness: Some materials may experience tempering brittleness after heat treatment, which can affect the stability and accuracy of the rolling process.
** * Surface quality * *: The surface quality and roughness of the material can also affect the accuracy of the rolling plate. Materials with poor surface quality or excessive roughness may be pulled during the rolling process, leading to a decrease in accuracy.
### 2. Matching of materials and equipment
*Rolling pressure: For materials of different specifications and strengths, the rolling machine needs to adjust the corresponding rolling pressure. The appropriate rolling pressure can ensure uniform deformation of the material, thereby improving the accuracy of the rolling plate.
*Selection of work rolls: Different materials may require the use of different types or specifications of work rolls. Choosing the appropriate working roller can ensure the stability and accuracy of the material during the rolling process.
### 3. Material changes during the rolling process
** * Material deformation * *: During the rolling process, the material may undergo elastic and plastic deformation. These deformations may affect the accuracy of the rolling plate. Therefore, it is necessary to consider the deformation characteristics of the material during the rolling process and take corresponding measures to control and compensate.
*Material hardening: Some materials may experience hardening during the rolling process, resulting in changes in their hardness and strength. This change may affect the subsequent rolling accuracy. Therefore, when evaluating accuracy performance, it is necessary to consider the hardening characteristics of the material.
### 4. Collection and analysis of material data
** * Actual production data * *: Collect material data during the actual production process, such as yield strength, temper brittleness, surface quality, etc., and conduct correlation analysis with the precision performance of the rolling machine. This helps to identify the specific impact of materials on accuracy performance and develop corresponding improvement measures.
** * Experimental Data * *: Evaluate the precision performance of different materials in the same conditions through experimental methods. This helps to understand the degree of influence of different materials on accuracy performance and provides a reference basis for material selection.
###Summary
When evaluating the accuracy performance of the rolling machine, we need to fully consider the influence of materials on accuracy. By understanding the physical properties of materials, the matching relationship between materials and equipment, the material changes during the rolling process, and collecting and analyzing material data, we can comprehensively evaluate the accuracy performance of the rolling machine and take corresponding measures to improve processing accuracy and stability.