Method for machining low-roughness high-peak textured roller

Abstract

The invention provided with a method for machining a low-roughness high-peak textured roller. The low-roughness high-peak textured roller is machined through the steps of adjusting equipment operation accuracy, changing the roller grinding travel, reducing transverse texturing color difference, avoiding surface arcing of the textured roller, reducing the defects of bright spots and scratches on the surface of the textured roller and changing a textured roller driver structure. Compared with the prior art, the method has the beneficial effects that on the condition of not changing the performance such as the high efficiency and low operation cost of an electric spark texturing device and the excellent disordered cold roller surface topography, the lowest roughness value of the electric spark textured cold roller is reduced to 1.2 microns, and the peak value of the textured cold roller is increased to more than 130 per square centimeter, the spraying and stamping performance of a cold-rolled automobile sheet can be obviously improved, and the method has wide application prospects in production of high-end cold-rolled automobile sheets.

Description

technical field [0001] The invention relates to the field of electric spark texturing, in particular to a processing method for a low-roughness high-peak number texturing roll. Background technique [0002] In the current steel industry production, there are three commonly used methods of texturizing cold rolling rolls, the first type, shot peening technology (SBT), the second type, electric spark texturing technology (EDT), the third type, Laser texturing technology (LBT), in addition, there are electron beam texturing technology, inkjet texturing technology, and chrome plating texturing technology, but due to technical limitations, these three technologies have not been widely used in steel industry production. [0003] The first type of texturing technology is the earliest texturing technology. Due to low equipment cost and relatively simple equipment structure, it was widely used in the texturing of cold rolling rolls in the early days. However, due to poor control accur...

AI Technical Summary

Problems solved by technology

[0005] In the current EDM technology, the roughness of the texturized roll is mainly concentrated at 2.0-4.5 μm. Although most equipment manufacturers promise that the processing capacity of the equipment is Ra=1.0-12 μm, the practical application of Ra>4.5 μm is of little significance. It is rarely used in roll processing, and shot peening technology can also meet the requirements, but the technology of Ra<2.0μm is very difficult in practical applications, such as grinding defect coverage, surface roughness uniformity, surface color difference control, surface Issues such as scratch control are difficult to achieve

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