A pulsed microwave-assisted dynamic support flexible forming device and method

Abstract

The invention provides a pulse microwave-assisted dynamic supporting flexible forming device and method. The pulse microwave-assisted dynamic supporting flexible forming device comprises a supportingplate, a clamping plate, a forming tool bit and a pulse microwave-assisted forming device, wherein the clamping plate is positioned above the supporting plate, and is used for fixing a plate on the supporting plate; the pulse microwave-assisted forming device comprises a pulse microwave generator, a coaxial cable, a supporting rod, a supporting head, a sliding rod, two groups of sliding rails andtwo groups of sliding rail brackets used for supporting the sliding rails; the sliding rails are symmetrically arranged at two ends of the sliding rod, and the sliding rail brackets are symmetricallyarranged at two ends of the sliding rod; the two ends of the sliding rod are correspondingly connected with the two sliding rails in a sliding manner; one end of the supporting rod is connected with the sliding rod in a sliding manner; the other end of the supporting rod is rotationally connected with the supporting head; the forming tool bit and the supporting head are correspondingly positionedat the upper end and the lower end of the plate; and a solenoid coil is arranged in the supporting head, and is electrically connected with the pulse microwave generator through the coaxial cable. Through the utilization of the pulse microwave-assisted dynamic supporting flexible forming device, the forming limit of a material at a room temperature can be remarkably improved, the plane strain value of a wrought aluminum alloy is effectively improved, and the flexible forming of the plate is completed.

Description

technical field [0001] The invention relates to the technical field of plate processing, in particular to a pulse microwave-assisted dynamic support flexible forming device and method. Background technique [0002] The deformation ability of aluminum alloy at room temperature is poor. When the general stamping process is used for quasi-static deformation processing of aluminum alloy, its forming limit is low, and it is easy to crack in the high strain area, and the plate has a large rebound, and It is easy to produce distortion, and these factors lead to low forming precision of aluminum alloy sheet. [0003] Hot forming has certain advantages over forming at room temperature. It can improve the formability of parts and the dimensional accuracy of parts, and effectively improve the surface hardness and wear resistance of parts. Add shot blasting and oiling lines, and the coated plates will pollute the ceramic rollers in the heating furnace, requiring higher cleaning costs. ...

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Problems solved by technology

[0002] The deformation ability of aluminum alloy at room temperature is poor. When the general stamping process is used for quasi-static deformation processing of aluminum alloy, its forming limit is low, and it is easy to crack in the high strain area, and the plate has a large rebound, and It is easy to produce distortion, and these factors lead to low forming precision of aluminum alloy sheet

[0003] Hot forming has certain advantages over forming at room temperature. It can improve the formability of parts and the dimensional accuracy of parts, and effectively improve the surface hardness and wear resistance of parts. Increase the shot blasting and oiling line, and the coated plate will pollute the ceramic roller in the heating furnace, requiring higher cleaning costs

[0004] Single-point progressive forming technology is a new type of sheet metal flexible forming technology. Its principle is to generate the overall deformation by successive deformation accumulation, which can realize the flexible forming of the sheet metal. The repeatability of the parts is good, and the most important thing is that it can greatly reduce the manufacturing cost of the product and shorten the development and manufacturing cycle. However, the existing flexible single-point incremental forming process of aluminum alloy sheet has a low forming limit of the material. When the sheet forming angle is large When cracking occurs, the forming accuracy is low, and technical problems such as springback effect occur, and the springback effect and parts precision are also important factors restricting the development of this technology.

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