CN107442955B - Laser auxiliary heating and instant cleaning type ultrasonic rapid forming device - Google Patents
Laser auxiliary heating and instant cleaning type ultrasonic rapid forming device Download PDFInfo
- Publication number
- CN107442955B CN107442955B CN201710733387.5A CN201710733387A CN107442955B CN 107442955 B CN107442955 B CN 107442955B CN 201710733387 A CN201710733387 A CN 201710733387A CN 107442955 B CN107442955 B CN 107442955B
- Authority
- CN
- China
- Prior art keywords
- laser
- ultrasonic
- head
- ultrasonic transducer
- scanning laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/16—Bands or sheets of indefinite length
Abstract
The invention belongs to the technical field of additive manufacturing, and discloses a laser auxiliary heating and instant cleaning type ultrasonic rapid forming device which comprises a roll welding pressure head, a first ultrasonic transducer and a second ultrasonic transducer which are connected with the roll welding pressure head, a scanning laser head arranged in the moving direction of the roll welding pressure head, a dust removal device and a shielding gas nozzle, wherein the first ultrasonic transducer and the second ultrasonic transducer are arranged on two sides of the roll welding pressure head to form a push-pull type structure, and the scanning laser head preheats and processes a surface to be welded. According to the technical scheme, the three-dimensional specification of the weldable material is expanded under the condition that the power of the ultrasonic transducer is limited, the bonding quality between material layers of adjacent materials is improved, the generation of as-cast structures in the rapid forming process is effectively avoided, the solid-phase connection characteristic at the bonding interface is ensured, and the rapid forming efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of additive manufacturing, and relates to a laser-assisted heating and instant cleaning type ultrasonic rapid forming device.
Background
The Advanced Manufacturing (AM) technology is produced in the late 80 th of the 20 th century, and is commonly called 3D printing, Rapid Prototyping (Rapid Prototyping) or Solid Free-form fabrication (Solid Free-form fabrication), the technical core of which is a scientific and technical system for directly Manufacturing parts by driving three-dimensional data of the parts based on the principle of discrete-accumulation, and the technology is considered as an important achievement in the Manufacturing field in nearly 20 years. The AM technology fundamentally changes the traditional mechanical manufacturing mode, realizes the free manufacturing and the near net forming of parts by adopting a stacking mode, solves the processing difficulty and the manufacturing cost of parts with complex structures, greatly improves the manufacturing efficiency and the processing precision, has wide application in the fields of aerospace, rapid die manufacturing and biomedical materials, and has extremely wide development prospect.
Ultrasonic Additive Manufacturing (UAM) technology based on metal Ultrasonic welding was developed and established by the university of michigan in 1999, and after undergoing continuous technological upgrade, has been widely applied to Additive Manufacturing of various metals and alloys such as aluminum, copper, nickel, titanium, and the like. The UAM principle is as follows: through the high-frequency vibration friction between two-layer metal foil, under this effect, the oxide and the impurity on metal surface obtain effectual clearance, and the welding action of high strength has been realized to pure metal foil under the energy radiation effect of ultrasonic wave, reaches the connection between the atom between two-layer metal sheet, cooperates accurate numerical control machining simultaneously, superposes layer upon layer, and is in cycles, finally realizes the additive manufacturing purpose of near-net shaping.
The existing ultrasonic additive manufacturing technology has the following fatal defects in practical application: firstly, the power of an ultrasonic transducer is limited, the power of a single transducer is generally below 6kw and is expensive, the thickness of a connectable foil is small, the thickness of the connectable foil is generally below 0.5mm, and the width of the connectable foil is not more than 20 mm; under the limitation of the power of the existing equipment, the heat conductivity coefficient of partial metal materials such as copper and the like is large, and the phenomena of insufficient energy and reduced connection strength are easily generated in the ultrasonic welding process. Therefore, the existing ultrasonic wave additive manufacturing technology is mainly limited by the maximum power of the transducer and the thermodynamic property of the material, and due to the difference between the thermal conductivity of the material and the heat dissipation condition, the existing auxiliary heating mode cannot quickly and effectively solve the defects of the prior art.
Disclosure of Invention
The invention aims to solve the technical problems and provides a metal foil strip-based ultrasonic welding and rapid additive manufacturing device which is rapid, efficient and high in connection strength. The metal foil and the matrix are effectively preheated and laser cleaned by the linear laser beam, so that insufficient heat and heat dissipation loss in the additive manufacturing process are supplemented, and the metal foil is softened to a certain degree; simultaneously linear laser beam can also effectively clear up the oxide layer and the impurity on metal foil surface, and then effectively promotes material connection quality and quick shaping efficiency, avoids hindering hot mode and induction heating's uneven heat distribution problem effectively, solves present influence ultrasonic welding and increase material manufacturing process efficiency problem fast, breaks away from the specification restriction (thickness and width) of weldable metal foil, overcomes the bad welding of the great metal of coefficient of heat conductivity in welding process and connects the quality low grade problem. Rapid and high-quality ultrasonic rapid additive manufacturing based on metal foil strips through additional auxiliary energy supplement and surface cleaning
The invention can be realized by the following technical scheme:
the utility model provides a laser auxiliary heating and instant clearance formula ultrasonic wave rapid prototyping device, includes the seam welding pressure head, first ultrasonic transducer and the second ultrasonic transducer be connected with the seam welding pressure head, sets up scanning laser head, dust collector and the shielding gas nozzle on the seam welding pressure head direction of motion, and first ultrasonic transducer and second ultrasonic transducer install and form push-pull type structure in seam welding pressure head both sides, and scanning laser head preheats and handles the face of waiting to weld.
The scanning laser head comprises a first scanning laser head and a second scanning laser head, the scanning laser head emits laser beams, the first scanning laser head emits a first laser beam, the second scanning laser head emits a second laser beam, and the laser beams preheat and process surfaces to be welded of metal foil strips to be welded and/or surfaces to be welded of metal foil strips which are welded in the previous time.
The preheating mode is a laser beam radiation type, and the preheating temperature range is 50-1000 ℃. The preheating mode includes the following steps: (1) the scanning laser head is positioned right in front of the roll welding pressure head and the foil strip material, and preheats and cleans the foil strip material; (2) the scanning laser head is positioned right in front of the roll welding pressure head and the foil strip material, and preheats and cleans the matrix; (3) and the scanning laser head is positioned right in front of the roll welding pressure head and the foil material and is used for simultaneously preheating and cleaning the foil material and the matrix.
The distance between the laser beam preheating part and the foil strip welding joint part is 5-20 mm, and the speed of the first laser head and the second laser head is the same as the ultrasonic additive manufacturing speed.
The lamination mode of the foil material is parallel tiling multilayer superposition or vertical tiling multilayer superposition. Ultrasonic rapid additive manufacturing of composite structures, laminated layers and gradient composite parts is achieved based on foil strip materials, the laminating mode of the foil strip materials can be any mode, and continuous stacking stitch welding forming is conducted generally in a mode of parallel tiled multilayer overlapping and vertical tiled multilayer overlapping.
The device also comprises a non-contact infrared thermometer, wherein a closed-loop control and regulation system is established between the non-contact infrared thermometer and a laser source of the scanning laser head, and the temperatures of the foil strip and the substrate are monitored. The temperature of the metal foil strip to be welded and the matrix is monitored in real time, quickly and effectively, the generation of cast structure in the quick forming process is effectively avoided, and the solid-phase connection characteristic at the joint interface is ensured.
YAG pulse laser with wavelength of 1064nm, laser pulse width of 200ns, adjustable laser pulse frequency and width, and focused laser spot of 0.05 mm.
The laser light source of the scanning laser head is a 1064nm continuous fiber laser.
Dust collecting equipment uses inert gas to preheat the laser and protect with the clearance position, removes dust to the impurity and the oxide after the laser clearance in-process gasification simultaneously and handles, prevents to mix with and causes to mix with between the foil material layer, influences the quality that increases material manufacturing part.
Preferably, the inert gas is argon or nitrogen.
According to the technical scheme, the laser beam preheats and cleans parts to be welded of filling materials and base materials in the ultrasonic additive manufacturing process, materials are softened, oxide films and impurities on the surfaces of the materials are removed before welding, the three-dimensional specification (thickness and width) of the weldable materials is expanded under the condition that the power of an ultrasonic transducer is limited, the bonding quality between adjacent material layers is improved, the generation of cast structure in the rapid forming process is effectively avoided, the solid-phase connection characteristic of a bonding interface is ensured, the rapid forming efficiency is improved, a three-dimensional solid entity is formed through repeated reciprocating roll welding consolidation, a high-precision numerical control machining platform is matched, a part with the designed geometric characteristic is obtained, and the ultrasonic rapid additive manufacturing method has a wide application prospect in the ultrasonic rapid additive manufacturing field of complex laminated parts made of metal materials such as aluminum, copper, nickel, titanium and the like.
The technical scheme has excellent preheating and cleaning effects on non-ferrous metal materials with larger heat conductivity coefficient, the main energy in the welding process is ultrasonic energy, most of the bonding between metal foil strips is solid-phase connection, and the method can be applied to the rapid preparation and forming of high-strength and high-compactness laminated parts, composite laminated materials and functional gradient materials.
Drawings
FIG. 1: the invention discloses a schematic diagram of a laser-assisted heating and instant cleaning type ultrasonic rapid forming device;
FIG. 2: the metal foil strip materials are laminated in parallel in the same direction in the laser-assisted heating and instant cleaning type ultrasonic rapid forming process;
FIG. 3: according to the invention, metal foil strip materials are stacked in the vertical direction in the laser-assisted heating and instant cleaning type ultrasonic rapid forming process;
FIG. 4: the invention relates to a laser-assisted heating and instant cleaning type ultrasonic rapid forming process, wherein metal foil strip materials are laminated in a staggered mode in the same direction.
Wherein: 1. a first ultrasonic transducer; 2. roll welding a pressure head; 3. a dust removal device; 4. a foil material; 5. a first laser beam; 6. a first scanning laser head; 7. a second scanning laser head; 8. a shielding gas nozzle; 9. a second laser beam; 10. a work table; 11. a base material; 12. a second ultrasonic transducer.
Detailed Description
The laser-assisted heating and instant cleaning type ultrasonic rapid prototyping device provided by the invention is further described with reference to the accompanying drawings and the specific implementation mode.
As shown in figures 1-4, the additive manufacturing process of the invention is completed on a workbench 10, before roll welding of each layer of foil strip material, the filling foil strip material 4 is stacked on the upper surface of a base body 11, power supplies of a laser generator and an ultrasonic generator are started, a first scanning laser head 6 emits a first laser beam 5 and a second scanning laser head 7 emits a second laser beam 9 at the same time of starting the manufacturing of the additive of the ultrasonic roll welding head 2, the first laser beam and the second scanning laser head respectively or simultaneously act on the graphic positions of the filling foil strip material 4 and the base body material 11 to heat and clean the graphic positions, inert gases such as argon gas and the like protect the parts after laser preheating and laser cleaning through a shielding gas nozzle 8 to prevent secondary oxidation, and simultaneously, smoke dust, particles and the like generated in the laser cleaning process can be blown away from the area to be welded and can be recycled through a dust removal device 3 to prevent environmental pollution. The filling foil material 4 which is removed of the oxidation film and the surface impurities and softened by heating realizes high-quality and high-efficiency solid-phase connection under the energy action of the ultrasonic roll welding pressure head 2. And the ultrasonic rapid molding additive manufacturing process can be realized by repeatedly carrying out multi-layer welding according to the steps. The lamination mode of the metal foil strip material in the laser-assisted heating and instant cleaning type ultrasonic rapid prototyping process can be various, and mainly comprises the steps of parallel lamination in the same direction (as shown in figure 2), lamination in the vertical direction (as shown in figure 3) and staggered lamination in the same direction (as shown in figure 4).
Example 1
As shown in figure 1, firstly, two layers of aluminum foils with the thickness of 1mm are arranged on the surface of a workbench 10, a laser beam 5 cleans and heats the parts to be welded of the two layers of aluminum foils, ultrasonic roll welding is carried out simultaneously, the two layers of aluminum foils realize reliable solid phase connection under the action of the energy of ultrasonic waves, and the steps are repeated to carry out circulating roll welding, so that the rapidly formed aluminum laminated material part can be obtained.
Example 2
As shown in figure 1, firstly, an aluminum foil with the thickness of 1mm and a copper foil with the thickness of 1mm are arranged on the surface of a workbench 10, a first laser beam 5 and a second laser beam 9 clean and heat the parts to be welded of the aluminum foil and the copper foil, ultrasonic roll welding is carried out simultaneously, aluminum and copper dissimilar materials realize reliable solid phase connection under the action of ultrasonic energy, and the steps are repeated to carry out circular roll welding, so that the aluminum-copper composite material part formed quickly can be obtained.
Example 3
As shown in figure 1, firstly, an aluminum foil with the thickness of 1mm and a titanium foil with the thickness of 1mm are arranged on the surface of a workbench 10, a first laser beam 5 and a second laser beam 9 clean and heat the parts to be welded of the aluminum foil and the titanium foil, ultrasonic roll welding is carried out simultaneously, reliable solid-phase connection of aluminum and titanium is realized under the action of ultrasonic energy, and the steps are repeated to carry out circular roll welding, so that the rapidly-formed aluminum-titanium composite laminated part can be obtained.
The present invention is not limited to ultrasonic welding and additive manufacturing of the above-listed materials, and is applicable to alloy materials such as nickel base and titanium base. Compared with the prior art, the laser beam adopted by the invention realizes the auxiliary heating and the instant cleaning of the base material and the auxiliary material, the three-dimensional specification (thickness and width) of the material capable of being roll-welded is further increased, the width of the metal foil strip for single welding is generally not more than 35mm, the thickness is generally not more than 2mm, meanwhile, the timely cleaning function can be beneficial to the high-quality combination between multiple layers of metals, the roll-welding efficiency is improved, the connection quality is further improved, and the laser beam has great application prospect in the aspect of batch production of rapidly-formed parts.
The examples are merely illustrative of the technical solution of the present invention and are not intended to limit it in any way; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (4)
1. The utility model provides a laser auxiliary heating and instant clearance formula ultrasonic wave rapid prototyping device which characterized in that: the ultrasonic welding device comprises a roll welding pressure head, a first ultrasonic transducer, a second ultrasonic transducer, a scanning laser head, a dust removal device and a protective gas nozzle, wherein the first ultrasonic transducer and the second ultrasonic transducer are connected with the roll welding pressure head;
the scanning laser head comprises a first scanning laser head and a second scanning laser head, the scanning laser head emits laser beams, the first scanning laser head emits a first laser beam, the second scanning laser head emits a second laser beam, and the laser beams preheat and process the surface to be welded of the metal foil strip to be welded and/or the surface to be welded of the metal foil strip which is welded in the previous time;
the preheating mode is a laser beam radiation mode, and the preheating temperature range is 50-1000 ℃;
the distance between the laser beam preheating part and the foil strip welding joint part is 5-20 mm;
the lamination mode of the foil material is parallel tiling and multilayer superposition or vertical tiling and multilayer superposition;
the device also comprises a non-contact infrared thermometer, wherein a closed-loop control and regulation system is established between the non-contact infrared thermometer and a laser source of the scanning laser head, and the temperatures of the foil strip and the substrate are monitored;
the dust removal equipment uses inert gas to protect laser preheating and cleaning parts, and simultaneously removes dust from gasified impurities and oxides in the laser cleaning process.
2. The laser-assisted heating and instant cleaning type ultrasonic rapid prototyping device of claim 1 is characterized in that: YAG pulse laser with wavelength of 1064nm, laser pulse width of 200ns, adjustable laser pulse frequency and width, and focused laser spot of 0.05 mm.
3. The laser-assisted heating and instant cleaning type ultrasonic rapid prototyping device of claim 1 is characterized in that: the laser light source of the scanning laser head is a 1064nm continuous fiber laser.
4. The laser-assisted heating and instant cleaning type ultrasonic rapid prototyping device of claim 1 is characterized in that: the inert gas is argon or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710733387.5A CN107442955B (en) | 2017-08-24 | 2017-08-24 | Laser auxiliary heating and instant cleaning type ultrasonic rapid forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710733387.5A CN107442955B (en) | 2017-08-24 | 2017-08-24 | Laser auxiliary heating and instant cleaning type ultrasonic rapid forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107442955A CN107442955A (en) | 2017-12-08 |
| CN107442955B true CN107442955B (en) | 2020-05-19 |
Family
ID=60493189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710733387.5A Active CN107442955B (en) | 2017-08-24 | 2017-08-24 | Laser auxiliary heating and instant cleaning type ultrasonic rapid forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107442955B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080638B (en) * | 2018-01-30 | 2023-07-04 | 华中科技大学 | Laser 3D printing forming system and forming method for amorphous alloy foil |
| CN110202783B (en) * | 2019-07-15 | 2023-02-10 | 江西省科学院应用物理研究所 | Device for cleaning 3D printer nozzle by adopting ultrasonic waves |
| CN112692422B (en) * | 2020-12-15 | 2022-01-21 | 中山大学 | Plasma arc enhanced ultrasonic metal composite plate preparation device and method |
| CN113510366B (en) * | 2021-07-06 | 2023-09-19 | 武汉光谷机电科技有限公司 | Welding device and welding method for heat conducting substrate and fins of heat pipe radiator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8082966B2 (en) * | 2010-03-12 | 2011-12-27 | Edison Welding Institute, Inc. | System for enhancing sonotrode performance in ultrasonic additive manufacturing applications |
| CN103600166B (en) * | 2013-12-02 | 2016-06-29 | 哈尔滨工业大学（威海） | The ultrasonic quick molding method of auxiliary heating type and device |
| CN106475673A (en) * | 2015-08-31 | 2017-03-08 | 林荣良 | Binode ultrasonic continuous roll welder |
| US9346120B1 (en) * | 2015-12-28 | 2016-05-24 | Edison Welding Institute, Inc. | Sonotrode apparatus for use in ultrasonic additive manufacturing |
| CN106862748B (en) * | 2017-01-24 | 2019-08-06 | 中北大学 | Amorphous/metal micro-laminated composite material ultrasonic wave accumulates manufacturing method |
-
2017
- 2017-08-24 CN CN201710733387.5A patent/CN107442955B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107442955A (en) | 2017-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107442955B (en) | Laser auxiliary heating and instant cleaning type ultrasonic rapid forming device | |
| JP7002142B2 (en) | How to control the deformation and accuracy of parts in parallel during the additive manufacturing process | |
| US11154951B2 (en) | Laser 3D printing forming system of amorphous alloy foil and forming method thereof | |
| CN106825348B (en) | Metal smithwelding increasing material manufacturing device and forging method | |
| CN103600166B (en) | The ultrasonic quick molding method of auxiliary heating type and device | |
| CN109605039A (en) | A kind of electric arc increasing material and electric auxiliary hot rolling forming composite manufacturing method and device | |
| CN107498173A (en) | The laser assisted ultrasound increasing material manufacturing device and manufacture method of a kind of metallic foil | |
| CN105149778B (en) | A kind of device and method for eliminating aluminum steel dissimilar metal laser welding crackle and stomata | |
| CN111215855B (en) | Titanium/nickel alloy part based on explosive welding and laser additive manufacturing and preparation method | |
| JP6910092B2 (en) | Laser addition manufacturing method and system based on key Hall effect | |
| CN107790866A (en) | Bimetallic electron beam fuse increasing material manufacturing method | |
| CN1907643A (en) | Layered manufacturing method of metal parts | |
| CN108481744A (en) | A kind of semisolid increasing material manufacturing device and its manufacturing method | |
| CN114101888B (en) | Zirconium alloy low-temperature diffusion connection method | |
| CN110539138A (en) | Preparation method of aluminum alloy lightweight active cooling structural skin | |
| CN105033459B (en) | Intermetallic compound control method of steel/niobium laser welding joint | |
| CN103624398A (en) | High-intensity aluminum alloy thick-plate low-heat input stirring friction welding method | |
| CN207386797U (en) | A kind of laser assisted ultrasound increasing material manufacturing device of metallic foil | |
| CN110373666A (en) | A kind of synchronous cladding apparatus of the electromagnetism auxiliary laser that is remanufactured for metal parts and method | |
| TW201806890A (en) | Manufacturing method of 3D glass | |
| Martin | Exploring additive manufacturing processes for direct 3D printing of copper induction coils | |
| CN113909633B (en) | Synchronous heating stress deformation control system and method for robot arc material-adding shaft parts | |
| Turk et al. | Experimental study for improving the productivity of laser foil printing | |
| CN110788503B (en) | Method for forming advanced dissimilar metal composite structure of 45# steel/tin-lead alloy | |
| CN104694918A (en) | New method for laser cladding of metal ceramic composite coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |