Magnetic field assisting laser-solid-forming manufacturing device

Abstract

A laser-solid-forming manufacturing device includes a laser emitter, a magnetic field generator, and a forming platform. The laser emitter emits a laser beam which acts on a feedstock to form a molten pool. The magnetic field generator includes a spiral copper coil, a first electrode and a second electrode. The spiral copper coil is formed by spirally winding a copper tube. The first and second electrodes are arranged at respective ends of the copper tube and are used for loading a voltage to generate a magnetic field in the spiral copper coil. At any time, the spiral copper coil sleeves an action point of the laser beam and the feedstock. A corresponding laser-solid-forming manufacturing method is also presented.

What is claimed is: 
     
         1 . A laser-solid-forming manufacturing device, comprising:
 a forming platform arranged horizontally and configured for placing feedstock;   a laser emitter disposed above the forming platform and configured for emitting a laser beam which acts on the feedstock to form a molten pool; and   a magnetic field generator, the magnetic field generator comprising a spiral copper coil, a first electrode and a second electrode;   wherein the spiral copper coil comprises a spirally-wound copper tube, wherein the first and second electrodes are arranged at respective ends of the copper tube and are adapted for loading a voltage to generate a magnetic field in the spiral copper coil, and wherein the spiral copper coil sleeves an action point of the laser beam and the feedstock.   
     
     
         2 . The laser-solid-forming manufacturing device according to  claim 1 , wherein the device further comprises a regulator connected with the spiral copper coil, the regulator being configured for regulating a horizontal position of the spiral copper coil and an intersection angle between the spiral copper coil and the forming platform. 
     
     
         3 . The laser-solid-forming manufacturing device according to  claim 2 , wherein the regulator comprises a rotating disc, the two ends of the copper tube extending in a same direction and respectively connected with the rotating disc, the rotating disc being configured to rotate to thereby drive the spiral copper coil to rotate so as to regulate the intersection angle between the spiral copper coil and the forming platform. 
     
     
         4 . The laser-solid-forming manufacturing device according to  claim 3 , wherein the regulator further comprises an x-direction mobile shaft and an x-direction rail, the x-direction rail being horizontally arranged, the x-direction mobile shaft being arranged respectively vertical to the rotating disc and the x-direction rail, wherein one end of the x-direction mobile shaft is inserted in the rotating disc and is rotationally connected with the rotating disc, and the other end of the x-direction mobile shaft is slidingly connected with the x-direction rail in an extension direction of the x-direction rail. 
     
     
         5 . The laser-solid-forming manufacturing device according to  claim 4 , wherein the regulator further comprises two y-direction rails, the two y-direction rails being arranged in parallel with each other and vertical to the x-direction rail, the x-direction rail being mounted on the two y-direction rails and is respectively slidingly connected with the two y-direction rails in an extension direction of the y-direction rails. 
     
     
         6 . The laser-solid-forming manufacturing device according to  claim 5 , wherein the regulator further comprises a z-direction rail and a mobile platform, the mobile platform being horizontally arranged, the two y-direction rails being fixed to the mobile platform, the z-direction rail being arranged vertical to the mobile platform, wherein a hole is formed in the mobile platform, the z-direction rail passing through the hole so as to be in sliding contact with the mobile platform, the mobile platform being configured to slide up and down along the z-direction rail. 
     
     
         7 . The laser-solid-forming manufacturing device according to  claim 1 , wherein the copper tube has a hollow structure, one end of the copper tube being provided with a cooling water inlet valve, and the other end being provided with a cooling water outlet valve and wherein water-cooled heat dissipation is achieved by feeding circular cooling water into the hollow copper tube. 
     
     
         8 . The laser-solid-forming manufacturing device according to  claim 1 , wherein the laser emitter comprises one of a CO 2  gas laser, a Nd-YAG laser, and a fiber laser.