Aluminum alloy ring piece radial-axial rolling lubricant and lubrication process thereof

Abstract

The invention belongs to an aluminum alloy plasticity processing lubrication technology method, which concretely discloses an aluminum alloy ring piece radial-axial rolling lubricant and a lubrication process thereof. The lubricant comprises the following components by mass ratio: 65-80% of lard, 15-30% of graphite, 3.5-4.5% of molybdenum disulfide and 0.5-1.5% of barium petroleum sulfonate. The lubrication process aims at specific phases for lubrication, and has good adaptability for radial-axial rolling shaping on the aluminum alloy ring piece, the defect of roll banding, surface peeling, polygon and ellipse during an aluminum alloy ring piece rolling process can be effectively solved, rolling process stability, primary rolling qualified rate and product size precision are increased, production period is shortened, production cost is reduced, and product quality is guaranteed.

Description

technical field [0001] The invention belongs to a lubricating process for plastic processing of aluminum alloys, and in particular relates to a lubricant and a lubricating process. Background technique [0002] Radial-axial rolling is an advanced ring rolling forming process. Through the cyclic and coordinated deformation of materials in radial and axial double deformation zones, ring products with uniform microstructure, complete fiber direction and excellent mechanical properties can be obtained. At present, it is widely used in the production of high-quality aluminum alloy ring forgings in aerospace and other fields. However, due to the poor wear resistance of the aluminum alloy material, the small adhesion resistance inside the metal, and the complexity and particularity of the radial-axial rolling process, sticking rolls and surface defects often occur in production due to improper rolling lubrication processes. Defects such as peeling, polygon and ellipse. Once these...

AI Technical Summary

Problems solved by technology

However, due to the poor wear resistance of the aluminum alloy material, the small adhesion resistance inside the metal, and the complexity and particularity of the radial-axial rolling process, sticking rolls and surface defects often occur in production due to improper rolling lubrication processes. Defects such as peeling, polygon and ellipse

Once these defects occur, the rolling process cannot continue, and even the rings are scrapped, which greatly increases the production cost and production cycle of the ring products, and reduces the pass rate and product quality of the first rolling.

[0003] A rolling forming method of an aluminum alloy conical ring forging disclosed in the Chinese invention patent specification CN101279348A published on April 23, 2008, and a non-ferrous metal alloy ring disclosed in the Chinese invention patent specification CN101875093A published on November 3, 2010 The processing method of the parts, the Chinese invention patent specification CN102085549A disclosed on June 8, 2011 discloses a rolling forming method of aluminum alloy high-tube ring forgings, respectively introduces the forming process and forming methods of the corresponding products, but neither Involves the lubrication process method in the rolling process

At present, the movement rules and matching relationship of molds in the existing aluminum alloy die forging forming, extrusion forming, plate and bar rolling forming are different from the radial-axial ring rolling forming process, so the existing aluminum alloy Hot working lubrication technology is not suitable for aluminum alloy ring rolling process

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