Manufacturing method for bearing ball

Abstract

The invention discloses a manufacturing method for a bearing ball. The manufacturing method specifically comprises the following steps that (1) blanking and upsetting of a billet are conducted; (2) edge removing is conducted, specifically, mould casting overspill is removed from the spherical billet obtained in the step (1), and thus a coarse ball is obtained; (3) heat treatment is conducted, specifically, the coarse ball is carburized and quenched; (4) grinding machining is conducted, specifically, a heated coarse ball billet is coarsely ground and accurately ground sequentially, thus a ground ball is obtained, and then the ground piece is subjected to annealing treatment, surface passivation treatment and lubricating treatment techniques sequentially; and (5) polishing is conducted, specifically, a polishing machine and a polishing agent are used for polishing treatment, and thus the bearing ball is obtained. Through the technique, the yield is high, the technique is simple, the bearing ball is manufactured, precise net shaping of a product is achieved, fracturing is avoided in the using process, and the service life of a bearing is prolonged.

Description

technical field [0001] The invention belongs to the technical field of mechanical forging and molding, and in particular relates to a method for manufacturing bearing balls. Background technique [0002] The ball bearing is a kind of rolling bearing. The spherical alloy steel ball is installed in the middle of the inner steel ring and the outer steel ring to reduce the friction force in the process of power transmission and improve the transmission efficiency of mechanical power by rolling. Ball bearings cannot withstand large heavy loads and are more common in light industrial machinery. Ball bearings are also called ball bearings. The ball in the ball bearing is a very important rolling part. Once deformed or broken, it will cause partial operation of the equipment, or even stop, causing safety hazards in production. Therefore, its quality and life are very important. , the technological process that often applies in the prior art is: the process of forging, hot rolling,...

AI Technical Summary

Problems solved by technology

The ball in the ball bearing is a very important rolling part. Once deformed or broken, it will cause partial operation of the equipment, or even stop, causing safety hazards in production. Therefore, its quality and life are very important. , the process flow often used in the prior art is: the process of forging, hot rolling, cooling, forging, annealing, tempering and grinding, but the process is complicated, resulting in a slight omission to produce poor quality products