A Direct Resistance Heating Device for Additive Manufacturing Wire Feeding Process

Abstract

The invention discloses a direct resistance heating device for an additive manufacturing wire feeding process, which belongs to the technical field of electric heating components. The device includes a transfer fixing component, a direct resistance heating wire component, a wire feeding hose connector, a transfer connector and a copper nut. The direct resistance heating wire assembly includes conductive tube, conductive copper terminal, high-aluminum tube, contact tip joint and contact tip; the transfer fixing assembly transfers and fixes the direct resistance heating wire assembly and the working plane, and the adjustable bolt adjusts the wire feeding direction; The wire hose connector is fixedly connected to the conductive tube, and the wire hose connector is connected and fastened by the set screw, which is the wire feed end; the end of the direct resistance heating wire assembly is provided with a conductive nozzle connector, which is connected to the The contact tip is connected to the wire outlet; the direct resistance heating wire assembly provides the heating wire current through the adjustable DC power supply, and connects the contact tip and the conductive copper terminal with alligator clips to conduct electricity and preheat the metal wire; high aluminum tube is used for insulation insulation hot. The device has the advantages of simple structure, convenient operation and good effect.

Description

technical field [0001] The invention specifically relates to a direct resistance heating device for an additive manufacturing wire feeding process, which belongs to the technical field of electric heating components. Background technique [0002] Additive manufacturing technology, also known as 3D printing technology, is an advanced technology that directly manufactures solid parts by stacking materials layer by layer through CAD design data. Additive manufacturing technology can complete the manufacture of many complex structural parts that are difficult to complete by traditional processing, and greatly reduces the processing steps and construction period. It has been widely used in the development of new products and the production of small batches of complex parts. [0003] Additive manufacturing technology is mainly divided into powder-feeding additive manufacturing and wire-feeding additive manufacturing methods according to the different materials used for deposition...

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Problems solved by technology

[0011] The purpose of the present invention is to solve the technical defects of limited application range, low heating efficiency, high cost and unfavorable health of the operator in the heating process of the existing additive manufacturing wire feeding process. Considering that the direct resistance heating equipment is simple and controllable With the advantages of strong performance, a direct resistance heating device for additive manufacturing wire feeding process is proposed

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