The current situation and future development of aluminum alloy forging
Aluminum alloys are widely used in manufacturing and are the main structural material for aerospace. Aluminum alloy has the characteristics of small specific gravity, high specific strength, high specific stiffness, stress corrosion resistance, good comprehensive performance, and low price, etc. Its output is second only to steel, ranking second in the world. Deformation of aluminum alloy is mainly used in aircraft skin, truss, spacer frame, wall plate, wing ribs, wing beams tail, and other parts, aluminum alloy forgings in the application of aircraft wing
With the improvement of aircraft performance requirements and reliability, the technical requirements for aluminum alloy parts are getting higher and higher. The quality consistency, organization uniformity, and performance stability of aluminum alloy forgings must also be further improved through the forging process and quality control.
Therefore, attention to the production of aluminum alloy forgings should start from the aluminum alloy extrusion bar and forging billet with strict control. Research and control from the forging process parameters development, forging billet, die forging, heat treatment testing and mold making, lubricant use, etc., to reduce production costs; reduce manpower and material consumption, shorten the processing cycle; reduce rework and rework, and strengthen the surface control of aluminum alloy forgings. Improve the passing rate of one inspection, and become the aluminum alloy forging processing needed to solve the problem.
The current situation of aluminum alloy forgings
Aluminum alloy forging
Aluminum alloy forging is easy to crack in the forging process due to the low plasticity of the alloy, and the forging temperature range is narrow, generally about 100℃, so the heating temperature and forging temperature requirements are more stringent. General aluminum alloy forging heating furnace nominal temperature control accuracy of ± 3 ℃. Aluminum alloy forgings are easy to stick to the mold, have poor fluidity, sensitive to the strain rate, so the aluminum alloy forgings mold making, mold lubrication, forging deformation degree, and deformation rate put forward higher requirements.
