An electric assisted bending device and method

Abstract

The invention discloses an electric auxiliary bending device, which includes a punch, a die, a fixing component and an auxiliary component. The fixing component can fix the profile to be processed, and the fixing component can drive the profile to be processed to move and restore the deformation of the profile to be processed; Profiles are able to be electrified with auxiliary components. Using the electric assisted bending device of the present invention, the profile to be processed is pressed and bent, the profile to be processed is energized, and the Joule resistance heat generated by the current flowing through the profile to be processed directly heats the profile to be processed to keep its temperature within the forming temperature range , and the plastic deformation occurs under the action of the die and the punch, so that the internal temperature distribution of the profile to be processed is uniform, which is conducive to plastic forming and improves product quality. The invention also provides an electric assisted bending method. After the profile to be processed is bent, it is straightened, and repeated bending and straightening operations can effectively reduce bending cracks and bending springback during the forming process and improve the forming quality.

Description

technical field [0001] The invention relates to the technical field of punching and forming, in particular to an electric-assisted bending device and method. Background technique [0002] Bending forming is a process of bending sheets, wires and profile blanks into desired shapes by using a bending die under the pressure of a press. It is one of the basic processes of stamping, which can process parts of various complex shapes. [0003] In the actual bending forming process, there will be severe bending springback, difficulty in bending, and poor formability. The results will affect the surface quality, hardness, strength, toughness, and service life of the workpiece to varying degrees. [0004] To sum up, how to change the current situation of serious bending springback in the bending forming process in the prior art has become an urgent problem to be solved by those skilled in the art. Contents of the invention [0005] The purpose of the present invention is to provid...

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Problems solved by technology

[0003] In the actual bending forming process, there will be severe bending springback, difficulty in bending, and poor formability, which will affect the surface quality, hardness, strength, toughness, and service life of the workpiece to varying degrees.

[0004] In summary, how to change the current situation of serious bending springback in the bending forming process in the prior art has become an urgent problem to be solved by those skilled in the art

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