Near-net shape forming manufacturing method for thrust collars of sliding bearings of automobiles

Abstract

The invention relates to a near-net shape forming manufacturing method for thrust collars of sliding bearings of automobiles. The near-net shape forming manufacturing method includes: utilizing a seamless steel tube as a steel lining back of a thrust collar of a sliding bearing, disposing backing materials of the steel lining back in a lower die of an axial swing grinding machine to be processed rotationally; during process, moving the lower die upwards for feeding, rotating an upper die of the axial swing grinding machine into an inner hole of a cut seamless steel tube by an eccentric swing angle ranging from 1.5 degrees to 5 degrees, pressing ends of the tube to deform locally by the upper die until the peripheral end of the integral steel tube deforms by continuously rotating, grinding the peripheral end to be a planar ring, and manufacturing the planar ring into the steel lining back of the thrust collar of the sliding bearing; sanding, removing dust and cleaning; paving a thin layer of copper alloy powder and sintering; grinding in a swing manner secondarily, and alloying and sintering secondarily to form the thrust collar. By the near-net shape forming manufacturing method for the thrust collars of the sliding bearings of the automobiles, the thrust collars of the sliding bearings of the automobiles can be manufactured in a lossless and near net shape forming manner, and utilization rate of metal materials can be improved. Besides, the near-net shape forming manufacturing method is lossless, few in processing procedures, low in manufacturing cost and fine in product quality and can realize near net shape forming.

Description

technical field [0001] The invention relates to a near net shape manufacturing method of a thrust ring of an automobile sliding bearing. Background technique [0002] Fast, direct, non-cutting (that is, Net Shape) or less cutting (that is, Near Net Shape) processing has always been the goal pursued by the machinery industry. From the "Eighth Five-Year Plan", "Ninth Five-Year Plan", "Tenth Five-Year Plan", "Eleventh Five-Year Plan" and "Twelfth Five-Year Plan", China has always been listed as a technical project supported by national science and technology and prioritized for development. Near-net shape technology refers to the forming technology of mechanical components that can be used as a mechanical component with only a small amount of processing or no processing after the part is formed. It is based on multidisciplinary high-tech achievements such as new materials, new energy, mechatronics, precision mold technology, computer technology, automation technology, numerica...

AI Technical Summary

Problems solved by technology

The sliding bearing thrust ring is processed from the material of the plate or the coil, and the material around the ring and the inner hole of the ring of the sliding bearing thrust ring must be removed, and the average utilization rate of the material is only 40% to 65%. , the waste of materials is too large, the manufacturing cost is high, and the consumption of non-ferrous metals and steel resources is no longer suitable for China and other countries that want to build a resource-saving society.

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