A method and device for ultra-low temperature spinning forming of aluminum alloy curved busbar components

Abstract

The invention discloses an ultra-low temperature spinning forming method and device for an aluminum alloy curved busbar component. The forming method sequentially performs forming steps such as die clamping, blank precooling, and spinning processing, so as to realize spinning forming of the blank under ultra-low temperature conditions Processing, and there is always a clear gap between the blank and the die during the processing process, which prevents the local performance weakening, cracking and stress concentration of the workpiece under the ultra-low temperature environment, and greatly improves the yield and processing quality. The forming method of the present invention has the advantages of convenient implementation, high forming efficiency, good product integrity and good quality performance; the device used to realize the ultra-low temperature spinning forming method of the aluminum alloy curved busbar component also has the above advantages.

Description

A kind of ultra-low temperature spinning forming method and device for aluminum alloy curved generatrix member technical field The present invention relates to sheet metal forming technical field, relate in particular to a kind of ultra-low temperature spinning forming of aluminum alloy curved generatrix member method and apparatus. Background technique Along with the continuous improvement of scientific and technological strength, my country's aerospace technology and strength are developing rapidly, and the launch vehicle is growing rapidly. Type, integration, lightweight development. The bottom of the rocket fuel tank is a typical representative of an aluminum alloy curved busbar component. The ambient temperature is low, the load is large and the working environment is extremely complex. Because of its high diameter-to-thickness ratio, large curvature, and deep depth It is extremely difficult to realize the overall forming. At present, the bottom forming proces...

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Problems solved by technology

However, due to the need for deep drawing and preforming before spinning, the size of the component is restricted by the size of the press table and the tonnage

At the same time, annealing treatment is required between different passes of spinning forming, and the assembly workpiece needs to be transferred multiple times, the process is complex and the processing cycle is long

It is difficult to realize the rapid and efficient production and manufacture of large aluminum alloy curved busbar components, and for aluminum alloys with high alloying degree and poor plasticity, the problem of cracking during forming cannot be solved only by trajectory planning and adjustment of machine tool processing parameters.

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