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Metal filament additive manufacturing device

An additive manufacturing and metal filament technology, applied in the field of metal filament additive manufacturing devices, can solve problems such as arcing splash, poor substrate bonding, etc., to eliminate arc and spark phenomenon, avoid printing failure or atmospheric pressure Good effect of stable protection

Pending Publication Date: 2019-01-11
NAT INST CORP OF ADDITIVE MFG XIAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of severe arcing spatter during the printing process and poor bonding between layers and substrates in the existing metal filament additive manufacturing process based on resistance thermal fusion deposition, the present invention provides a metal Filament Additive Manufacturing Device

Method used

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  • Metal filament additive manufacturing device
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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, the principle of the present invention is based on the fact that the metal wire material will generate resistance heat after being energized, and the metal wire material will be melted and piled up to form through the resistance heat. The positive pole of the power supply 4, the metal substrate 3 is connected to the negative pole of the power supply 4, the top of the metal wire 17 and the substrate 3 form a circuit, and a certain form of current is passed through to instantly melt the end of the metal wire 17. After melting, the metal droplets are due to gravity and surface The effect of tension is deposited on the substrate 3, and with the movement of the substrate 3 and the continuous delivery of the wire, stacked metal parts can be formed on the substrate 3, realizing metal additive manufacturing. However, during the printing pro...

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Abstract

The invention relates to a metal filament additive manufacturing device comprising a filament feeder, an electric conduction mouth, a base plate, a power resistor R1, a power source and an atmosphereprotection structure. The filament feeder, the electric conduction mouth and the base plate are arranged sequentially from top to bottom. An anode of the power source is connected with the electric conduction mouth. A cathode of the power source is connected with the base plate. One end of the power resistor R1 is in electric connection with the electric conduction mouth. The other end of the power resistor R1 is in electric connection with the base plate. The power resistor R1 is in parallel connection between the electric conduction mouth and the base plate, when a filament and the base plate are separated due to an external cause, the power resistor R1 produces a path for a current, and thus the problem of severe arcing splashing in the existing metal filament additive manufacturing process based on resistance heat fused deposition modeling is solved.

Description

technical field [0001] The invention relates to the field of metal additive manufacturing, in particular to a metal filament additive manufacturing device based on resistance thermal fusion accumulation forming. Background technique [0002] Additive manufacturing (additive manufacturing, AM) technology is a technology based on CAD / CAM design, using a layer-by-layer accumulation method to manufacture solid parts. Compared with traditional subtractive manufacturing (cutting) technology, it is a kind of material accumulation manufacturing method. Additive manufacturing technology, commonly known as 3D printing technology, is an advanced manufacturing technology that has developed rapidly in the past 30 years. Its advantage lies in the rapid and free manufacturing of three-dimensional structures, and it is widely used in new product development and single-piece small-batch manufacturing. Among them, metal direct forming is a difficult and hot technology in additive manufacturi...

Claims

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Application Information

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IPC IPC(8): B23K9/04B23K9/16B23K9/32B23K9/26B33Y30/00
CPCB23K9/04B23K9/16B23K9/26B23K9/32B33Y30/00
Inventor 李波波任晓飞王万军张丽娟王强卢秉恒赵纪元
Owner NAT INST CORP OF ADDITIVE MFG XIAN
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