Wire powder composite plasma arc additive manufacturing device and using method

Abstract

The invention discloses a wire powder composite plasma arc additive manufacturing device and a using method, and relates to the field of additive manufacturing for intermetallic compound alloys. The device comprises a plasma welding device, an arc height sensor (12), a wire powder composite filling material device and a computer (16), wherein the arc height sensor (12) is assembled on the plasma welding device; and the plasma welding device, the arc height sensor (12) and the wire powder composite filling material device are connected with the computer (16) separately. According to the invention, a powder adding device is introduced on the basis of double dissimilar wires, so that flexible regulation and control for alloy trace elements of a target intermetallic compound are realized, and various properties of the intermetallic compound are effectively improved. The arc height sensor is additionally arranged to feed back and adjust a plasma arc height, so that the transition stability of a plasma arc, a molten pool and wire powder filling materials in an additive process is effectively improved, and the defect rate of additive components is reduced.

Description

technical field

[0001] The invention relates to the field of additive manufacturing of intermetallic compound alloys, in particular to a silk powder composite plasma arc additive manufacturing device and a use method. Background technique

[0002] Intermetallic compound alloys benefit from their low density and excellent performance in special working environments such as high temperature and strong corrosion and wear. , biomedicine (nickel-titanium alloy) and other engineering fields have broad application prospects. However, due to the generally high room temperature brittleness of intermetallic compound alloys, defects such as cold cracks and solidification cracks are prone to occur during the preparation and forming process. Therefore, existing intermetallic compound alloy preparation and forming methods, such as precision casting, vacuum arc smelting, and plasma sintering, all require complicated processes, resulting in extremely high manufacturing costs and low effici...

Examples

Embodiment 1

[0040] Such as figure 1 Shown is a schematic diagram of an in-situ preparation and forming device for intermetallic compounds based on silk powder composite plasma arc additive manufacturing of the present invention, wherein the additive substrate part: select a substrate 13 with a suitable composition for the target intermetallic compound alloy composition, and place the substrate 13 is clamped on the additive interlayer temperature control system 14, and using the additive interlayer temperature control system 14 to perform appropriate preheating / interlayer temperature control for the target intermetallic compound alloy, the preheating / interlayer temperature is 400 to 800 degrees Celsius. The additive interlayer temperature control system 14 with the substrate 13 clamped is fixed on the robot welding platform 4 with the additive platform air protection device 15 .

[0041] Additive plasma arc heat source part: the plasma welding torch 2 is assembled on the six-axis robot 3,...

technical field

[0001] The invention relates to the field of additive manufacturing of intermetallic compound alloys, in particular to a silk powder composite plasma arc additive manufacturing device and a use method. Background technique

[0002] Intermetallic compound alloys benefit from their low density and excellent performance in special working environments such as high temperature and strong corrosion and wear. , biomedicine (nickel-titanium alloy) and other engineering fields have broad application prospects. However, due to the generally high room temperature brittleness of intermetallic compound alloys, defects such as cold cracks and solidification cracks are prone to occur during the preparation and forming process. Therefore, existing intermetallic compound alloy preparation and forming methods, such as precision casting, vacuum arc smelting, and plasma sintering, all require complicated processes, resulting in extremely high manufacturing costs and low effici...

Examples

Embodiment 1

[0040] Such as figure 1 Shown is a schematic diagram of an in-situ preparation and forming device for intermetallic compounds based on silk powder composite plasma arc additive manufacturing of the present invention, wherein the additive substrate part: select a substrate 13 with a suitable composition for the target intermetallic compound alloy composition, and place the substrate 13 is clamped on the additive interlayer temperature control system 14, and using the additive interlayer temperature control system 14 to perform appropriate preheating / interlayer temperature control for the target intermetallic compound alloy, the preheating / interlayer temperature is 400 to 800 degrees Celsius. The additive interlayer temperature control system 14 with the substrate 13 clamped is fixed on the robot welding platform 4 with the additive platform air protection device 15 .

[0041] Additive plasma arc heat source part: the plasma welding torch 2 is assembled on the six-axis robot 3,...

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