A flexible forming system and forming method of amorphous alloy sheet

Abstract

The invention belongs to the field of amorphous alloy rapid forming and discloses a flexible forming system and forming method for an amorphous alloy plate. The flexible forming system comprises a preheating unit, a clamping unit and a forming unit. The clamping unit is used for clamping a to-be-formed plate. The preheating unit heats the to-be-formed plate, and thus the temperature of the to-be-formed plate is below the glass-transition temperature. The forming unit comprises a tool head, and the to-be-formed plate is rolled by the tool head, so that forming of the to-be-formed plate is achieved. A heating channel and a cooling channel are formed in the tool head. The heating channel is used for introducing a heating medium in to heat the surface of the to-be-formed plate, and the heatedarea is heated to the superplastic state of the supercooled liquid region. The cooling channel is used for introducing a coolant in to lower the temperature of the tool head after the to-be-formed plate is rolled by the tool head. Through the flexible forming system and forming method, a complex-shape part of a completely amorphous structure is formed, the problem of flexible forming springback informing is solved, formability is improved, and distortion and tearing caused by too large a tensile load of a partial area of the raw material are prevented.

Description

Technical field [0001] The invention belongs to the field of rapid forming of amorphous alloys, and more specifically relates to a flexible forming system and forming method of amorphous alloy plates. Background technique [0002] Compared with traditional crystalline alloys, amorphous alloys have many advantages, mainly including high strength, good wear resistance and corrosion resistance, excellent soft magnetic and hard magnetic properties. Amorphous alloys are used in supercooled liquids. The phase zone also exhibits superplasticity, with almost no rebound after forming, which is conducive to thermoplastic forming. Due to its excellent properties, amorphous alloys have broad application prospects in aerospace, precision equipment, military and chemical industries. [0003] At present, the forming methods of amorphous alloys include 3D printing, blow molding, electromagnetic forming and other methods. 3D printing can form parts with complex structures, but the produced parts ...

AI Technical Summary

Problems solved by technology

3D printing can form complex structural parts, but the produced parts are often cracked and prone to crystallization

The blow molding mold is simple, suitable for batch and automatic production, but the forming is limited to parts with simple structures, and it is impossible to produce amorphous alloy parts with complex structures

Electromagnetic forming uses the hydrostatic force of electromagnetic force, which can ensure that the amorphous alloy billet is evenly stressed when forming, but it is limited by the high resistivity of the amorphous alloy, so the electromagnetic force is often not enough to form the amorphous alloy. In addition, electromagnetic forming also requires molds , extending the processing cycle

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