Ultrasonic-assisted extrusion device

Abstract

The ultrasonic-assisted extrusion device comprises an extrusion device body and an auxiliary device, the extrusion device body comprises a driving mechanism, an extrusion rod and an extrusion die, the driving mechanism is connected with the extrusion rod, a mounting cavity is formed in the extrusion rod, and the extrusion die is provided with an extrusion die cavity for containing the extrusion rod and a blank; the driving mechanism drives the extrusion rod to move in the extrusion die cavity to extrude the blank; the auxiliary device comprises a generator and a transducer, the generator is electrically connected with the transducer, the transducer converts electric energy into mechanical vibration, and the transducer is located in the installation cavity. The energy converter is arranged in the extrusion rod, so that the resonance design is convenient, strong vibration of ultrasonic waves can be ensured to act on the blank, the blank is more easily subjected to plastic deformation, the extrusion deformation resistance of the blank is reduced, the extrusion resistance is reduced, the blank is prevented from cracking, the extrusion operation quality is ensured, and the resonance design of the extrusion process and the ultrasonic vibration is considered.

Description

technical field [0001] The invention relates to the technical field of ultrasonic-assisted forming, in particular to an ultrasonic-assisted extrusion device. Background technique [0002] Ultrasonic vibration-assisted plastic forming technology refers to an advanced forming technology in which transverse or longitudinal ultrasonic vibration is applied to the mold or material to be processed in the traditional plastic forming process, so as to use ultrasonic energy to assist in the completion of various plastic forming. In recent years, with the development of ultrasonic technology, the introduction of ultrasonic vibration into the plastic forming process to improve the forming efficiency and quality of products has received extensive attention. [0003] The existing ultrasonic vibration-assisted extrusion forming technology is to install the ultrasonic vibration system composed of the ultrasonic transducer and the ultrasonic horn on the extrusion die, and the end of the ultr...

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Problems solved by technology

When ultrasonic vibration is applied to the extrusion die, the resonance design of the die and the ultrasonic transducer is required to achieve high-efficiency vibration of the die. However, due to the complex shape of the die cavity, the resonance design is difficult and the vibration distribution is uneven, making it difficult to achieve Ultrasonic vibration is applied to the billet, and the utilization rate of ultrasonic vibration is low, and it is impossible to ensure continuous and efficient ultrasonic vibration of the deformed part of the billet during the entire extrusion process. Not only that, but the existing technology is not conducive to the installation of ultrasonic transducers on the mold

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