阅读说明：本技术 一种高效异种材料等离子电弧熔丝沉积装置设计 (Design of high-efficiency dissimilar material plasma arc fuse deposition device ) 是由 潘家敬 董运龙 郭怀志 于 2020-11-04 设计创作，主要内容包括：本发明公开了一种高效异种材料等离子电弧熔丝沉积装置,包括等离子电弧发生装置和夹持装置,所述的等离子电弧发生装置通过阴极与阳极的作用产生等离子束,等离子束在高速状态下被喷射出形成等离子电弧。不同的丝状金属材料通过夹持装置进入到等离子电弧所产生的热源内,实现异种金属的熔丝沉积。异种材料的熔丝沉积具有支撑材料和成型材料方便的优点,有利于实现材料的合金化,提高材料表面的强度和硬度,达到改善单一材料性能较差的目的。(The invention discloses a high-efficiency plasma arc fuse deposition device for dissimilar materials, which comprises a plasma arc generation device and a clamping device, wherein the plasma arc generation device generates plasma beams through the action of a cathode and an anode, and the plasma beams are ejected at a high speed to form plasma arcs. Different wire-shaped metal materials enter a heat source generated by the plasma arc through the clamping device, and the deposition of the fuse wire of different metals is realized. The fuse deposition of the dissimilar material has the advantages of convenience for supporting materials and forming materials, and is beneficial to realizing alloying of the materials, improving the strength and hardness of the surface of the materials and achieving the purpose of improving the poor performance of a single material.)

1. The utility model provides a high-efficient xenogenesis material plasma arc fuse deposition apparatus, includes plasma arc generating device and filamentous metal material clamping device, plasma arc generating device installs at whole device central point, clamping device passes through the pullover and installs the outside at plasma arc generating device.

2. The plasma arc generating apparatus as claimed in claim 1, wherein the compression of air is effected inside thereof by the interaction of the anode and the cathode thereof to generate the plasma beam, and the generated plasma beam is ejected through the anode nozzle under high speed action to form the plasma arc. The plasma arc has the characteristics of high heating speed, high heating temperature, concentrated heat and the like, can realize the simultaneous deposition of dissimilar materials, and improves the deposition efficiency.

3. The clamping device as claimed in claim 1, wherein the robotic arm is freely adjustable to adjust the deposited dissimilar metal material at any angle at any time, thereby ensuring that the metal material is constantly in a heat source generated by the plasma arc, and avoiding problems of uneven mixing of the metal material and low utilization rate of the material.

Technical Field

The invention relates to the technical field of dissimilar metal material fuse deposition, and particularly designs a high-efficiency dissimilar material arc fuse deposition device based on a plasma technology.

Background

The high-efficiency fuse wire deposition technology is characterized in that according to the principle of rapid prototyping technology dispersion and accumulation, a filamentous material is fed, heated to a molten state by a heat source and then rapidly solidified, and layer-by-layer deposition is realized. The hot-melt metal material is rapidly cooled and solidified, and the rapid manufacturing of the material by the fuse deposition is realized.

The deposition of dissimilar metal materials is to improve deposition efficiency, and a multi-wire arc additive manufacturing technology is adopted, so that the method is a special fuse deposition method for manufacturing specific alloys and gradient materials. The method has great significance for researching the additive manufacturing of the high-strength aluminum alloy and improving the strength and hardness of the metal material.

The arc fuse deposition technology is a special additive manufacturing technology, realizes the rapid melting and solidification of metal materials by taking a high-energy arc as a heat source, has the characteristics of high heating speed, high heating temperature and concentrated heat, and realizes the 'free manufacturing' of the materials. Due to its advantages of low cost, high deposition efficiency, high material removal rate, etc., it has recently received much attention from the industrial manufacturing industry.

Disclosure of Invention

The device aims to solve the problems that the existing dissimilar material fuse deposition device has a narrow metal material selection surface, low deposition efficiency, poor material surface performance after deposition and the like. The invention designs a high-efficiency plasma arc fuse deposition device for dissimilar materials, which adopts a plasma technology, wherein plasma beams generated by a plasma arc generation device are ejected to generate plasma arcs with higher temperature, the plasma arcs generate a large amount of heat, dissimilar material metals enter wires and are deposited simultaneously, the fuse deposition of the dissimilar materials is realized, and the aim of printing different materials is fulfilled. The heterogeneous materials are simultaneously fed and deposited, so that the alloying of the metals can be realized, and the strength and the hardness of the materials are improved.

The technical scheme of the invention is realized as follows:

a high efficiency dissimilar material plasma arc fuse deposition apparatus comprising:

(1) a plasma arc generating device;

(2) a holding device for holding a different type of wire-like metal material.

A high-efficiency plasma arc fuse deposition device for dissimilar materials comprises a plasma arc generating device for generating plasma arc and a holding device for dissimilar metal materials. The plasma beam generated by the plasma arc generating device is ejected out in a high-speed state to form a plasma arc; the clamping device for the dissimilar filamentous metal materials can freely adjust the angle according to the working requirement, and is beneficial to depositing and forming high-quality dissimilar metal alloys. The plasma arc generating device for generating plasma arc is positioned in the middle of the whole device, and the dissimilar wire metal material holding device is arranged outside the generating device and can move freely, so that the wire metal material is controlled to be always in a plasma arc heat source area.

The plasma arc generating device generates plasma beams by compressing air entering the device, and the plasma beams are ejected out at a high speed to generate plasma arcs.

The clamping device for the dissimilar metal wire materials mainly plays a role in clamping the wire materials, can be adjusted in a free rotating mode, realizes that different wire materials can enter a heat source generated by a plasma arc at the same time, and improves deposition efficiency.

The invention has the beneficial effects that:

the plasma arc generated by the device has the advantages of heat concentration, good controllability, stable arc and the like, the process is stable, and high-quality deposited metal materials are easy to obtain. The fuse deposition of the dissimilar materials has the characteristic of convenience for supporting materials and forming materials, can realize printing of different materials, is beneficial to realizing alloying of the materials, improves the strength and hardness of the surface of the materials, and achieves the purpose of improving the poor performance of a single material.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings required for the technical examples will be briefly described below.

FIG. 1 is a simplified diagram of a high efficiency plasma arc fuse deposition apparatus for dissimilar materials.

FIG. 2 is a schematic view of the structure of the plasma arc generating apparatus.

Fig. 3 is a schematic structural view of the clamping device.

FIG. 1. holding device; 2. a plasma arc generating device; 3. a wire-like metallic material; 4. an anode head; 5. a cathode head; 6. a plasma torch; 7. transferring an arc; 8. an anode nozzle; 9. sleeving heads; 10. a mechanical arm; 11. a rotating shaft.

Detailed Description

As shown in FIG. 1, the device of the present invention comprises a holder 1, a plasma arc generator 2, and a wire-like metal material 3. The plasma arc generating device includes an anode head 4, a cathode head 5, a plasma torch 6, a transfer arc 7, and an anode nozzle 8. The clamping device comprises a sleeve head 9, a mechanical arm 10 and a rotating shaft 11.

The working principle of the plasma arc generating device 2 is that a plasma arc with high energy density is obtained by taking a transfer arc 7 as a heat source, an internal anode nozzle 8 and a cathode plasma torch 6 are respectively connected with a positive electrode and a negative electrode, gas passes through the plasma torch 6 during working, the gas is heated to a higher temperature, and then a jet flow of plasma with extremely high temperature and extremely high speed is ejected from the anode nozzle 8 through the effect of compression to form a plasma arc.

The clamping device 1 is sleeved on the plasma arc generating device 2, free rotation can be achieved by rotating the rotating shaft 11 of the mechanical arm 10 during working, the sleeve head 9 can also rotate freely, the position of a filamentous metal material is further determined, the deposited material can be ensured to be always kept in a plasma arc heat source generated by the plasma generating device, heat generated by the heat source is fully utilized, and deposition efficiency is improved.

When the high-efficiency dissimilar material plasma arc fuse deposition device works, the plasma arc generation device 2 compresses gas to generate plasma, and the plasma is ejected through the anode nozzle 8 to generate plasma arc. The different wire-shaped metal materials are controlled to enter a heat source generated by a plasma arc through the clamping device 1, and fuse deposition of different materials can be realized. The method has the characteristics of convenience in supporting materials and forming materials, is beneficial to realizing alloying of the materials, improves the strength and hardness of the surface of the materials, and achieves the purpose of improving poor performance of a single material.