Bearing alloy surface high-frequency impact processing method

A high-frequency impact and bearing alloy technology, applied in the field of high-frequency impact processing, can solve problems such as difficult to guarantee accuracy, complicated processing methods, and troublesome problems, and achieve the effects of improving mechanical properties, saving equipment, and reducing manufacturing costs

Active Publication Date: 2008-01-09
DALIAN METALLURGICAL BEARING
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Problems solved by technology

Therefore, the currently known processing routes and processing methods are very complicated. In the finishing and super-finishing stages, such as oil film bearings in rolling mills, it is necessary to finish turning-fine grinding-fine boring, and use special processing tools and molds
Multiple processes, multiple card installations, laborious, time-consuming, and difficult to guarantee accuracy

Method used

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  • Bearing alloy surface high-frequency impact processing method

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Embodiment Construction

[0019] The method of high-frequency impact processing on the surface of bearing alloys is to fix the high-frequency impact processing head 3 on the tool bar 2 of the vertical lathe machine tool, and the bi-metal alloy to be processed uses tin-based Babbitt alloy as the friction-reducing layer (hardness HBa ≤0.1μm, surface microhardness increased by 20-40%.

[0020] The present invention is a successful exploration for the inner and outer surfaces of the oil film bearing bush of the bimetallic material with the bearing alloy of very low hardness (HB<24) as the antifriction layer, and the superfinishing is carried out sequentially under one clamping. The brand-new processing method thus introduces a way of "cutting bends and straightening", which changes the traditional process route and process method, and has achieved remarkable results in reducing costs, improving efficiency, and improving performance.

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Abstract

The HF impact machining process for the surface of alloy bearing includes: fixing the HF impact head in the cutter holder of a vertical lathe and the bearing workpiece on the rotary table of the vertical lathe; and starting the HF impact head to impact the inner and outer surfaces of bearing bush in the frequency of 20-30 KHz and impact amplitude of 30-50 microns. The present invention has the advantages of capacity of decreasing the number of fine machining equipment, short technological process, high machining precision and long service life.

Description

technical field [0001] The invention relates to a processing method of a bearing surface, in particular to a double-metal radial circumferential sliding bearing bush with a bearing alloy as a friction-reducing layer, an axial planar thrust sliding bearing and various types of sliding bearings High-frequency shock processing method for alloy surface. Background technique [0002] Sliding bearings with bearing alloys such as tin-based Babbitt alloys, lead-based Babbitt alloys and other soft alloys as friction-reducing layers, such as radial sliding bearings and axial thrust plane sliding bearings, are widely used. [0003] Radial sliding bearings, including oil film bearings for back-up rolls of modern medium plate mills, heavy plate mills, extra heavy plate mills, hot tandem mills, and cold tandem mills, and oil film bearings for generators, motors, gas turbines, blowers, etc. Axial thrust plane sliding bearings, including large axial plane thrust oil film shaft bearings of ...

Claims

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Application Information

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IPC IPC(8): B23P9/04
Inventor 郭溪泉李树青王恒臣孙克钧韩庆富姜正春
Owner DALIAN METALLURGICAL BEARING
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