The invention provides a metal material 3D printing method, system and equipment based on a hybrid laser source. The metal material 3D printing equipment comprises a laser source device (1), a scanning device (2), a roller (3), a forming base plate (4), a base plate fixing device (5), a powder raw material cylinder (6), a workbench (7) and a control unit (8), wherein platforms of the laser sourcedevice (1), the scanning device (2) and the forming base plate (4) are respectively connected to the control unit (8); and the roller (3) is in contact with the powder raw material cylinder (6). Compared with the prior art, the hybrid laser selective melting/synchronous powder feeding/synchronous wire feeding type 3D printing method and equipment provided by the invention have the advantages thathybrid laser provided by the invention can overcome the defect of insufficient single laser power; and the absorption rate of a material can be increased, and 3D printing of the metal material can becompleted. According to the method, the production cost can be saved to a certain extent, and the method, system and equipment can also be applied to the hybrid laser welding process.

Metal material 3D printing method, system and equipment based on hybrid laser source

Disclosed are a central feeding laser system based on multiple optical fiber output laser modules, and a machining head, the central feeding laser system comprising multiple optical fiber output laser modules (M-1, M-2, …, M-N), and multiple collimating lenses (CL-1, CL-2, …CL-i, …, CL-M) corresponding to the optical output laser modules, a feeding pipe (SLG), and a focusing lens (FL) with a through hole in the center, wherein the multiple optical fiber output laser modules (M-1, M-2, …, M-N) are divided into several groups, and output optical fiber end faces of each group of modules are arranged, according to a certain rule, near a front focal point of a collimating lens corresponding to each group of modules; the collimating lens comprises at least a lens; the focusing lens (FL) with the through hole in the center comprises at least a lens and is located behind the collimating lens; the feeding pipe (SLG) passes through the central through hole of the focusing lens; and the collimating lenses (CL-1, CL-2, …CL-i, …, CL-M) are arranged around the feeding pipe (SLG). Small-power modules are directly used, such that the process in the prior art of first performing beam combination and then performing beam splitting is avoided, thereby reducing device costs; in addition, only one focusing lens is used, and system debugging is simple.

Central feeding laser system based on multiple optical fiber output laser modules, and machining head

The invention discloses a center feeding laser system based on multiple optical output laser modules and a processing head. The center feeding laser system comprises the multiple optical output lasermodules, a plurality of collimating lenses corresponding to the optical output laser modules, a feeding pipe and a focusing lens with a through hole being formed in the center; the multiple optical output laser modules are divided into a plurality of groups, the output optical end surfaces of the groups of modules are distributed nearby front focus of the collimating lenses corresponding to the optical output laser modules according to a certain rule, and each collimating lens at least comprises a lens; the focusing lens with the through hole being formed in the center at least comprises a lens, and the lenses are located in the rear of the collimating lenses; the feeding pipe penetrates through the center through hole of the focusing lens; and the collimating lenses are arranged on the periphery of the feeding pipe. According to the center feeding laser system based on the multiple optical output laser modules, a small power module is used, the process of first beam combining and thenbeam dividing in the prior art is avoided, and the equipment cost is reduced; and in addition, only one focusing lens is used, and the system debugging is simple.

Center feeding laser system based on multiple optical output laser modules and processing head

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Center feeding laser system based on multiple optical output laser modules and processing head

Central feeding laser system based on multiple optical fiber output laser modules, and machining head