Titanium alloy bearing backfill process

Abstract

The invention provides a titanium alloy bearing backfill process. The process comprises the following steps that pretreatment before ball loading is conducted; specifically, a titanium alloy bearing billet is subjected to the machining procedures of turning, heat treatment, grinding and milling, and an intermediate part is selected through intermediate inspection; balls are loaded, specifically, the intermediate part is taken for loading the balls, and a semi-finished bearing is obtained; welding is conducted, specifically, ball loading holes of the semi-finished bearing are subjected to backfill welding, a welding machine is adopted for spot welding of the ball loading holes, and it is guaranteed that a welding spot is higher than the outer circle surface of an inner ring and the inner circle surface of an outer ring of the semi-finished bearing; ultrasonic inspection is conducted, specifically, a bearing part with a qualified welding atlas is selected out; and grinding is conducted, specifically, the welding spot is repaired until being consistent with the outer circle surface of the inner ring and the inner circle surface of the outer ring of the bearing part. The titanium alloy bearing backfill process is mainly used for backfilling of the ball loading holes, rolling bodies of the bearing rotate in a complete closed loop, slipping is avoided, the reliability of the bearing is greatly enhanced, and the service life is obviously prolonged.

Description

Technical field [0001] The invention relates to the technical field of bearings, in particular to a titanium alloy bearing backfilling process. Background technique [0002] Bearings are an important part of contemporary machinery and equipment. They are widely used and can be divided into rolling bearings, radial bearings, ball bearings, thrust bearings, etc. The main function of the bearing is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. [0003] Existing bearings are mostly made of ordinary GCR15 or stainless steel 420, 440 and other materials. Under the conditions of strong acid or alkali, this kind of bearing has a short service life, resulting in unsustainable production and reduced productivity, and most of it cannot meet the production of customers. demand. Bearings often need to work at higher speeds, but the bearings processed by the existing processing technology, when rotating at high s...