An excitation mobile platform for laser-arc-magnetic field hybrid welding

Abstract

The invention belongs to the field of welding, and discloses an excitation mobile platform for laser-arc-magnetic field composite welding, which includes a base, a servo motor, a horizontal guide rail, a support platform, a ball screw mechanism, a bracket, an excitation coil and a clamp. The servo motor and The horizontal guide rails are installed on the base, the support platform is installed on the horizontal guide rail, and the servo motor drives the support platform to move through the ball screw mechanism; the clamp is installed on the support platform; the bracket is installed on the on the base and install the excitation coil on the bracket. The clamp of the present invention can realize accurate positioning and clamping of workpieces, and can realize magnetic field adjustment in the weld area through the excitation coil; the servo motor can ensure the uniform movement of the workpiece during the welding process, and ensure the magnetic field in the area where the molten pool is located during welding. The consistency of size, direction and frequency also provides convenience for later use of high-speed cameras to capture the morphology of the melt pool.

Description

Technical field [0001] The invention belongs to the field of welding equipment, and more specifically, relates to an excitation mobile platform for laser-arc-magnetic field hybrid welding. Background technique [0002] The magnetic field-assisted laser-arc hybrid welding technology is a new multi-energy field hybrid welding technology that has emerged in recent years. Its basic principle is to use extremely high energy density (about 10 7 W / cm 2 ) The laser beam interacts with the metal material to form small hole deep penetration welding. Arc welding can enhance the bridging ability. The external magnetic field can fully stir the molten pool metal to refine the crystal grains, inhibit splashing, slow down collapse, reduce pores and The effect of suppressing thermal cracking and optimizing weld performance. [0003] Since the external magnetic field can significantly improve the quality and performance of the welded joint, in order to study the influence of the magnetic field stren...

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