Grinding method of disc shear for shearing stainless steel precision foil

Abstract

The invention provides a grinding method of a disc shear for shearing a stainless steel precision foil. The grinding method comprises the steps of replacing a center frame bearing of a grinding machine for a roller with an ejector pin device, and adjusting the center line height of ejector pins to coincide with the grinding center line; overlapping a plurality of sets of disc shears with the sameouter diameter on a grinding circular shaft in a sleeving mode, and fixing flange clamping devices to the two sides of the grinding circular shaft; fixing the grinding circular shaft to the grinding machine through the ejector pins abutting against the flange clamping devices; determining the total grinding amount of the disc shear; rough grinding the disc shear through a green carbon grinding wheel of 60-80 meshes, and controlling the continuous feed amount of the grinding wheel within 0.05 mm / min; accurately grinding and polishing the disc shear through a green carbon grinding wheel of 180-240 meshes, and controlling the continuous feed amount of the grinding wheel within 0.005 mm / min; and performing accurate grinding and polishing for two times in a progressive decreasing mode of grinding pressure, wherein the grinding pressure of the first-time accurate grinding and polishing is controlled to be 0.5-0.6 Kpa, and the grinding pressure of the second-time accurate grinding and polishing is controlled to be 0.2-0.3 Kpa. According to the the grinding method, the stability of the shearing width and the shearing precision in the machining process of the stainless steel precision foilis ensured.

Description

technical field [0001] The invention belongs to the technical field of stainless steel production, and more specifically relates to a grinding method of disc shears for cutting stainless steel precision foil materials. Background technique [0002] Stainless steel precision foil is a technology-intensive high-end new material with excellent chemical properties, mechanical properties, thickness accuracy and surface properties. Stainless steel precision foil is generally measured in microns for its thickness. Due to its precise characteristics, stainless steel precision foil is widely used in pillar industries such as aerospace, military, automobile, petrochemical, and consumer electronics. This type of product has high quality requirements, difficult process control, and requires good mechanical properties. With the increasing requirements for products, the requirements for the surface roughness, gloss, rolling texture and other characteristics of stainless steel strip are m...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a grinding method of disc shears for stainless steel precision foil cutting, to solve the problem caused by the inconsistency of the outer diameter of the disc shears for stainless steel precision foil shearing. Stainless steel precision foil has serious quality problems such as serious printing on the back of the knife and large burrs after cutting, ensuring stable cutting width and cutting accuracy during the processing of stainless steel precision foil