Selective plasma melting rapid prototyping equipment and rapid prototyping method

Abstract

The invention discloses selective plasma melting rapid prototyping equipment and a rapid prototyping method. The equipment comprises a monitoring system, a plasma beam processing system, a level printing table and a powder sending and spreading device. The plasma beam processing system includes a plurality of plasma beam processing devices; each plasma beam processing device is composed of a plasma generator, a printing position adjusting device and a gas supply device; the monitoring system includes a plurality of plasma beam processing monitoring devices; each plasma beam processing monitoring device includes a temperature detection unit, a horizontal movement controller, a distance detecting unit and a printing distance adjusting controller. The method comprises the following steps: 1, acquisition of a 3D model of a workpiece to be molded, and hierarchical slicing processing; 2, scanning path filling; 3, printing path acquisition; and 4, printing layer by layer from top to bottom. The invention has the advantages of reasonable design, simple operation, high molding efficiency, good usage effect, no need of protective atmosphere or the vacuum environment, and direct operation in atmosphere environment.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a selective area plasma melting rapid prototyping equipment and a rapid prototyping method. Background technique [0002] At present, the rapid prototyping technology of metal parts at home and abroad includes the selective laser melting rapid prototyping technology (Selective laser melting, SLM). For example, the U.S. patent "PROCESS AND DEVICE FOR PRODUCTING A SHAPED BODY BY SELECTIVE LASERMELTING" with the patent number US7047098 describes in detail a selective laser melting forming method and equipment for manufacturing dense parts using a three-dimensional digital model. The Chinese invention patent with the publication number CN1603031A "A Method and Device for Selective Laser Melting Rapid Prototyping of Metal Parts" discloses a method and device for selective laser melting rapid prototyping of metal parts. The device includes semiconductor pumped YA...

AI Technical Summary

Problems solved by technology

This makes the structure of the selective laser melting rapid prototyping equipment complex, and the size of the molded parts is limited

[0007] Second, the laser spot diameter is small, the power is low, and the efficiency of forming large parts is low

Lasers are expensive and expensive to maintain

This makes the equipment cost of selective laser melting rapid prototyping technology very high

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