CN114871544B - Water-cooling gun head based on large heat energy input arc material increase - Google Patents
Water-cooling gun head based on large heat energy input arc material increase Download PDFInfo
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- CN114871544B CN114871544B CN202210702059.XA CN202210702059A CN114871544B CN 114871544 B CN114871544 B CN 114871544B CN 202210702059 A CN202210702059 A CN 202210702059A CN 114871544 B CN114871544 B CN 114871544B
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- 238000001816 cooling Methods 0.000 title claims abstract description 124
- 239000000463 material Substances 0.000 title claims abstract description 18
- 239000000654 additive Substances 0.000 claims abstract description 29
- 230000000996 additive effect Effects 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000010891 electric arc Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 83
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000010146 3D printing Methods 0.000 claims description 2
- 230000026058 directional locomotion Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000005253 cladding Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 238000007639 printing Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 208000012868 Overgrowth Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
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- 238000010583 slow cooling Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/285—Cooled electrode holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention relates to a water-cooling gun head based on large heat energy input arc additive, which relates to the technical field of arc additive manufacturing, and comprises an input part, clamping rods, water-cooling blocks and springs, wherein one ends of a plurality of clamping rods are hinged to the outer wall surface of the input part at intervals, the spherical water-cooling blocks are fixedly connected to the other ends of the clamping rods, and the springs are fixedly connected between the input part and the clamping rods so as to enable the water-cooling blocks to be close to the input part; the invention has the advantages of optimizing a cladding metal structure, rapidly and synchronously water-cooling and synchronously adding materials for multiple welding passes, and realizing rapid electric arc material adding under large heat energy input.
Description
Technical Field
The invention relates to the technical field of arc additive manufacturing, in particular to a water-cooling gun head based on large-heat energy input arc additive.
Background
Additive manufacturing encompasses a variety of shaping modes, including laser additive manufacturing, electron beam additive manufacturing, arc additive manufacturing, and the like. The arc additive manufacturing technology is to manufacture a metal entity member by adopting an arc as an energy-carrying beam and adopting a layer-by-layer build-up welding mode. The technical forming part is formed by welding cladding metal, has uniform chemical components, high density and an open forming environment, can realize the mixed manufacture of various materials, is easy to realize the processing of large-size complex components, and has the advantages of low cost, high efficiency, quick near-net forming, high material utilization rate and the like. Therefore, the technology is an additive processing method with great application potential.
Although the efficiency of the arc additive is significantly higher than that of the additive modes such as laser, electron beam and the like, if the efficiency of the arc additive is further improved, a large heat energy input is an unavoidable technical approach, namely, a larger heat energy input is adopted to more and more rapidly melt the additive metal. However, the large heat energy input causes long heating time of the formed part, high temperature rise and slow cooling process, and grains in the metal of the formed part grow up rapidly, so that the mechanical property of the formed part is reduced. In addition, because the forming part is heated locally in the processing process, the larger the input heat is, the larger the internal stress and deformation of the product are, and the quality of the product is affected. Thus, various arc additive techniques require control of the input energy at reasonable levels to ensure product quality, often at the expense of additive efficiency.
Accordingly, in view of the above deficiencies, it is desirable to provide a water-cooled gun head based on high thermal energy input arc additive.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to solve the technical problems that the existing arc material-increasing technology is slow in cooling process and affects the mechanical properties of formed parts.
(II) technical scheme
In order to solve the technical problems, the invention provides a water-cooling gun head based on large-heat energy input arc additive, which comprises an input part, clamping rods, water-cooling blocks and springs, wherein one ends of the clamping rods are hinged to the outer wall surface of the input part at intervals, the spherical water-cooling blocks are fixedly connected to the other ends of the clamping rods, and the springs are fixedly connected between the input part and the clamping rods so as to enable the water-cooling blocks to be close to the input part; the molten welding wire output by the directional movement input part is contacted with a water cooling block which is communicated with cooling water or cooling oil so as to enable the molten welding wire to be stacked and solidified to form the additive product.
As a further explanation of the invention, preferably, a cooling plate is arranged on one side of the water cooling block, which is close to the material-adding part, the cooling plate is a round ferrochrome sheet, and the water cooling block adopts the cooling plate as a bottom plate and is formed into a hollow structure through millimeter-level copper wire 3D printing.
As a further explanation of the present invention, preferably, the water cooling block is internally provided with a dense-sparse column, the dense-sparse column has a cylindrical structure, the outer diameter of the dense-sparse column is larger than the wall thickness of the water cooling block, the distribution density of copper wires in the inner cavity of the dense-sparse column is lower than that of copper wires on the outer wall surface, and an annular cooling cavity is formed between the dense-sparse column and the outer wall surface of the water cooling block.
As a further explanation of the present invention, it is preferable that the inside of the clamping bar is provided with a water inlet pipe and a water outlet pipe, both of which are arranged on both sides of the radial direction of the density column, and both of which are communicated with the cooling cavity.
As a further explanation of the present invention, preferably, the length direction of the density column is horizontal, the upper part of the density column is fixedly connected with a baffle, and the top of the baffle is fixedly connected with a clamping rod so that the connection ends of the water inlet pipe and the water outlet pipe and the cooling cavity are not communicated with each other.
As a further explanation of the invention, it is preferable that the joint end of the water cooling block and the cooling plate is polished to form a circular arc-shaped rounded transition end, and the outer wall surface of the water cooling block is polished smoothly.
As a further illustration of the invention, it is preferred that the outlet pipe is located on the side of the clamping bar near the input portion and the inlet pipe is located on the side of the clamping bar remote from the input portion.
As a further explanation of the present invention, preferably, the clamping bar is a metal bar in a shape of a Chinese character 'zhi', and the spring is fixedly connected to the position of the clamping bar with the greatest distance from the input part, and the top of the clamping bar is hinged with the input part.
As a further illustration of the invention, the clamping bars are preferably integrally formed with the water cooling block.
(III) beneficial effects
The technical scheme of the invention has the following advantages:
according to the invention, through optimizing a cladding metal structure, a rapid arc material increase method under high heat energy input is realized by adopting a rapid synchronous water cooling and multi-pass synchronous material increase method; the rapid synchronous water cooling can quickly condense welding slag, so that the accumulation of the welding slag at the melting position of the welding wire is reduced, splashing is reduced, and stable operation of an electric arc is facilitated; in addition, the metal cost of the cladding alloy can be regulated by changing the blending of the components of the flux core, the types of the cladding metal and the component proportion in the flux-cored wire, so that the texture of the cladding alloy is uniform, the obtained cladding metal has good mechanical properties, and the thermal stress of the product is small.
Drawings
FIG. 1 is a diagram showing the general assembly effect of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a bottom view of the present invention;
FIG. 4 is a cross-sectional view of the present invention;
fig. 5 is an enlarged view of a in fig. 4.
In the figure: 1. an input unit; 11. a working section; 2. a clamping rod; 21. a water inlet pipe; 22. a water outlet pipe; 3. a water cooling block; 31. a cooling chamber; 32. a dense column; 33. a partition plate; 34. a cooling plate; 35. rounded transition ends; 4. melting the welding wire; 5. a spring; 6. and (5) adding a material.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A water-cooling gun head based on large heat energy input arc material increase is shown in fig. 1, and comprises an input part 1, clamping rods 2, water-cooling blocks 3 and springs 5, wherein one ends of the two clamping rods 2 are hinged to the outer wall surface of the input part 1 at intervals, the spherical water-cooling blocks 3 are fixedly connected to the other ends of the clamping rods 2, and the springs 5 are fixedly connected between the input part 1 and the clamping rods 2 so that the water-cooling blocks 3 are close to the input part 1.
Referring to fig. 1 and 2, an input part 1 is a gun head main body, a welding wire conveying area and an arc starting area are arranged in the input part 1, the welding wire conveying area conveys a flux-cored wire to the arc starting area, an arc is generated in the arc starting area to melt the flux-cored wire, at the moment, the flux-cored wire in a molten state flows out of the input part 1 through a working part 11 fixedly connected to the bottom of the input part 1 to form a molten welding wire 4, the molten welding wire 4 falls on a base to be condensed into a solid state, and the molten welding wire 4 output by the input part 1 which moves back and forth in a reciprocating manner from top to bottom is contacted with a water cooling block 3 which is communicated with cooling water or cooling oil to stack and solidify the molten welding wire 4 to form an additive 6.
Referring to fig. 2 and 3, the clamping rod 2 is a metal rod in a shape of a Chinese character 'zhi', one end of the clamping rod 2 close to the right angle part is hinged to the input part 1, one end of the clamping rod 2 close to the obtuse angle part is fixedly connected with the water cooling block 3, hollow structures formed by printing millimeter-sized copper wires 3D are arranged in the clamping rod 2 and the water cooling block 3, the hollow parts in the clamping rod 2 are a water inlet pipe 21 and a water outlet pipe 22 respectively, the water outlet pipe 22 is positioned on one side of the clamping rod 2 close to the input part 1, the water inlet pipe 21 is positioned on one side of the clamping rod 2 far away from the input part 1, so that the influence of the high-temperature molten welding wire 4 on the water inlet pipe 21 is reduced, the temperature of cooling water or cooling oil entering the water cooling block 3 is ensured to be lower, and the water inlet pipe 21 and the water outlet pipe 22 are communicated with the water cooling block 3.
Referring to fig. 4 and 5, the water-cooling block 3 is of a sphere-like structure, and mainly comprises a hemispherical shell formed by overlaying and printing copper wires and a cooling plate 34 of a flat circular ferrochrome sheet, and the cooling plate 34 is used as a bottom plate when the water-cooling block 3 is manufactured, and then printing is performed around the cooling plate, so that the manufacturing process is convenient and quick. The cooling plate 34 is positioned on one side of the water cooling block 3 close to the material-increasing workpiece 6, is positioned below the working part 11 and is abutted against the side wall surface of the material-increasing workpiece 6, and the cooling plate 34 made of ferrochrome plates is arranged, so that the contact surface of the water cooling block 3 and the material-increasing workpiece 6 has extremely high temperature resistance, deformation can not occur at the temperature of the molten welding wire 4 up to 1400 ℃, and the molten welding wire 4 can be rapidly cooled and solidified under the cooling of cooling water or cooling oil, so that the internal stress of the material-increasing workpiece is reduced. Meanwhile, the outer wall surface of the cooling plate 34 is smooth, so that the abrasion degree can be reduced, and the service life of the water cooling block 3 is prolonged. In addition, other parts of the water cooling block 3 are made of copper, so that the water cooling block has certain structural rigidity and heat resistance, is convenient to print and mold, has excellent heat conductivity, and can uniformly cover cooling water or cooling oil by combining a spherical structure of the water cooling block, so that the heat exchange efficiency of the cooling water or the cooling oil is higher, and the cooling efficiency is improved.
By additionally cooling the material-increasing workpiece 6, the material-increasing workpiece has a certain plasticity effect on the cladding metal, reduces the forming error and improves the forming efficiency; secondly, the cladding metal can be rapidly cooled and solidified, and large-size metallographic phase formation is avoided, so that the mechanical property of the workpiece is effectively improved; the surface welding slag for fixing the cladding metal can be rapidly cooled, so that the surface welding slag cannot accumulate on the surface of the cladding metal, welding spatter is reduced, a welding arc is stabilized, and defects of air holes, impurities and the like in a workpiece are obviously reduced; and because of the effect of rapid water cooling, the whole part bears less heat input, and the stress, deformation and the like caused by the small heat input are small, thereby being beneficial to improving the quality of the part.
Referring to fig. 4 and 5, a dense column 32 is arranged in the water-cooling block 3, the dense column 32 is of a cylindrical structure, the outer diameter of the dense column 32 is larger than the wall thickness of the water-cooling block 3, the length direction of the dense column 32 is in a horizontal direction, the distribution density of copper wires in an inner cavity of the dense column 32 is lower than that of copper wires on the outer wall surface of the dense column 32, so that the dense column 32 has certain ductility and contractibility, high temperature is generated after heat exchange of cooling water or cooling oil, the water-cooling block 3 is heated and expanded, and at the moment, the dense column 32 stretches to a certain extent, so that the water-cooling block 3 is stable in structure and is not easy to generate plastic deformation, and meanwhile, the inner structure of the water-cooling block 3 can be supported. In addition, an annular cooling cavity 31 is formed between the sparse and dense column 32 and the wall surface of the water cooling block outer 3, the water inlet pipe 21 and the water outlet pipe 22 are respectively arranged at two radial sides of the sparse and dense column 32, the water inlet pipe 21 and the water outlet pipe 22 are both communicated with the cooling cavity 31, the upper part of the sparse and dense column 32 is fixedly connected with a partition plate 33, the top of the partition plate 33 is fixedly connected with a clamping rod 2 so that the connection ends of the water inlet pipe 21 and the water outlet pipe 22 with the cooling cavity 31 are not communicated with each other, cooling water or cooling oil can flow into the cooling cavity 31 from the water inlet pipe 21, and flows out of the water cooling block 3 through the water outlet pipe 22 after encircling the sparse and dense column 32, so that the circulation flow of the cooling water or cooling oil in the water cooling block 3 is realized, and the cooling plate 34 attached to the material-increasing part 6 is combined, and the cooling water or the cooling oil can be cooled continuously.
Referring to fig. 3 and 5, the spring 5 is fixedly attached to the clamping bar 2 at a position having a maximum distance from the input part 1, and preferably, the spring 5 is disposed at a position of the clamping bar 2 near the obtuse angle. In addition, the connecting end of the water cooling block 3 and the cooling plate 34 is polished to form an arc-shaped round corner transition end 35, and the outer wall surface of the water cooling block 3 is polished smoothly. When the additive piece 6 with the thickness larger than the distance between the two water cooling blocks 3 is required to be manufactured, the gun head does not need to be replaced, and only the additive piece 6 with the larger thickness is required to be divided into multiple layers, and additive manufacturing is performed layer by the input part 1. At this time, under the action of the springs 5, one water cooling block 3 is tightly attached to the side wall of the molded material-increasing part 6, and the other water cooling block 3 is tightly attached to the side wall of the molded material-increasing part 6, and although the first double-sided cooling is changed into single-sided cooling, the uncooled side surface and the molded side surface can be combined and compacted, so that no substantial fault condition occurs after the manufacturing is completed, and the mechanical property of the manufactured material-increasing part 6 with larger thickness is ensured to meet the design requirement. In addition, due to the design of the rounded transition end 35 and the spherical surface of the water cooling block 3, the water cooling block 3 can be always abutted with the wall surface of the material-increasing workpiece 6, friction is not increased for movement of a gun head, and when the curved wall workpiece is manufactured, the water cooling block 3 can be well contacted with the workpiece without changing the water cooling block 3, so that multiple purposes are achieved.
In order to optimize the manufacturing cost, the clamping rod 2 and the water cooling block 3 can be integrally formed. The clamping rod 2 can be manufactured by dividing the clamping rod 2 into two parts according to actual conditions, wherein the hinge part of the clamping rod 2 and half of the vertical part of the right-angle part are cut and punched and formed independently, the material can be aluminum, the water cooling block 3 and half of the vertical part of the obtuse angle part of the clamping rod 2 are printed and formed independently, and then the two parts are spliced and fixedly connected. By adopting the split manufacturing, the weight of the clamping rod 2 can be reduced without affecting the heat resistance and the structural strength, and the production cost can be reduced. Because the speed of manufacturing through printing is slower, and copper material unit price is more expensive, and adopts half aluminum product and produce through the mode of cutting, both from material cost and manufacturing cost all reduce, can not influence clamping bar 2 holistic structural strength moreover for the water-cooling rifle head is more economical and practical.
In conclusion, the flux-cored alloy welding wire special for inputting large heat energy is combined, a large number of uniformly dispersed tiny particles exist in the flux-cored alloy welding wire after cladding, the tiny particles play roles in dividing grain boundaries and pinning cracks, and the mechanical properties of materials can be effectively improved by combining additional cooling work. In addition, the flux-cored alloy welding wire can be modified by adding specific components into the flux core according to the special material requirements of the workpiece, so that the custom-made processing of the workpiece material is realized. And set up clamping lever 2 and can realize the fixed synchronous motion of water-cooling block 3 and welder head distance, can realize the quick cooling of cladding district, avoid cladding district metal crystal overgrowth, reduce the finished piece stress, make the welding slag solidify fast, increase the stability of electric arc work.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. Water-cooling rifle head based on big heat energy input electric arc vibration material disk, its characterized in that: the novel water cooling device comprises an input part (1), clamping rods (2), water cooling blocks (3) and springs (5), wherein one ends of the clamping rods (2) are hinged to the outer wall surface of the input part (1) at intervals, the spherical water cooling blocks (3) are fixedly connected to the other ends of the clamping rods (2), dense-sparse columns (32) are arranged in the water cooling blocks (3), the dense-sparse columns (32) are of cylindrical structures, the outer diameter of each dense-sparse column is larger than the wall thickness of the water cooling blocks (3), the distribution density of copper wires in inner cavities of the dense-sparse columns (32) is lower than that of copper wires on the outer wall surface, and annular cooling cavities (31) are formed between the dense-sparse columns (32) and the outer wall surface of the water cooling blocks (3); a water inlet pipe (21) and a water outlet pipe (22) are arranged in the clamping rod (2), the water inlet pipe (21) and the water outlet pipe (22) are respectively arranged at two sides of the radial direction of the density column (32), and the water inlet pipe (21) and the water outlet pipe (22) are both communicated with the cooling cavity (31); the spring (5) is fixedly connected between the input part (1) and the clamping rod (2) so as to enable the water cooling block (3) to be close to the input part (1); the molten welding wires (4) output by the directional movement input part (1) are contacted with the water cooling block (3) which is communicated with cooling water or cooling oil so as to enable the molten welding wires (4) to be stacked and solidified to form an additive piece (6); one side of the water cooling block (3) close to the material adding part (6) is provided with a cooling plate (34), the cooling plate (34) is a round ferrochrome sheet, and the water cooling block (3) takes the cooling plate (34) as a bottom plate to form a hollow structure through millimeter-level copper wire 3D printing.
2. The water-cooled lance tip based on high thermal energy input arc additive of claim 1 wherein: the length direction of the sparse and dense column (32) is in the horizontal direction, a partition plate (33) is fixedly connected to the upper part of the sparse and dense column (32), and the top of the partition plate (33) is fixedly connected to the clamping rod (2) so that the connection ends of the water inlet pipe (21) and the water outlet pipe (22) and the cooling cavity (31) are not communicated with each other.
3. The water-cooled lance tip based on high thermal energy input arc additive of claim 2 wherein: the connecting end of the water cooling block (3) and the cooling plate (34) is polished to form an arc-shaped round corner transition end (35), and the outer wall surface of the water cooling block (3) is polished smoothly.
4. A water cooled lance tip based on a high thermal energy input arc additive according to claim 3, wherein: the water outlet pipe (22) is positioned at one side of the clamping rod (2) close to the input part (1), and the water inlet pipe (21) is positioned at one side of the clamping rod (2) far away from the input part (1).
5. The water-cooled lance tip of claim 4 that is based on a high thermal energy input arc additive, wherein: the clamping rod (2) is a metal rod piece in a shape like a Chinese character 'zhi', and the spring (5) is fixedly connected to the position with the largest distance between the clamping rod (2) and the input part (1), and the top of the clamping rod (2) is hinged with the input part (1).
6. The water-cooled lance tip of claim 5 that is based on a high thermal energy input arc additive, wherein: the clamping rod (2) and the water cooling block (3) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210702059.XA CN114871544B (en) | 2022-06-21 | 2022-06-21 | Water-cooling gun head based on large heat energy input arc material increase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210702059.XA CN114871544B (en) | 2022-06-21 | 2022-06-21 | Water-cooling gun head based on large heat energy input arc material increase |
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| Publication Number | Publication Date |
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| CN114871544A CN114871544A (en) | 2022-08-09 |
| CN114871544B true CN114871544B (en) | 2024-04-12 |
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| CN112589229A (en) * | 2020-12-25 | 2021-04-02 | 广东省科学院中乌焊接研究所 | Electric arc additive manufacturing device and method |
| CN113000863A (en) * | 2021-02-23 | 2021-06-22 | 西安交通大学 | Follow-up dynamic cold restraint device and method for metal additive manufacturing equipment |
| KR102332535B1 (en) * | 2020-07-17 | 2021-12-01 | 비즈 주식회사 | Wire arc directed energy deposition 3d printing apparatus for flattening outer surface |
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| CN106984820A (en) * | 2017-05-22 | 2017-07-28 | 哈尔滨工业大学（威海） | A kind of 3D printing restriction molding servicing unit and its application method |
| CN107598335A (en) * | 2017-11-13 | 2018-01-19 | 山东建筑大学 | A kind of device for realizing silk material arc cast increasing material manufacturing |
| KR102332535B1 (en) * | 2020-07-17 | 2021-12-01 | 비즈 주식회사 | Wire arc directed energy deposition 3d printing apparatus for flattening outer surface |
| CN112589229A (en) * | 2020-12-25 | 2021-04-02 | 广东省科学院中乌焊接研究所 | Electric arc additive manufacturing device and method |
| CN113000863A (en) * | 2021-02-23 | 2021-06-22 | 西安交通大学 | Follow-up dynamic cold restraint device and method for metal additive manufacturing equipment |
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