CN112172138B - Laser deposition head device with adjustable light powder horizontal spacing and light powder non-coaxial additive manufacturing method - Google Patents
Laser deposition head device with adjustable light powder horizontal spacing and light powder non-coaxial additive manufacturing method Download PDFInfo
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- CN112172138B CN112172138B CN202010927527.4A CN202010927527A CN112172138B CN 112172138 B CN112172138 B CN 112172138B CN 202010927527 A CN202010927527 A CN 202010927527A CN 112172138 B CN112172138 B CN 112172138B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
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- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
-
- 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
- B33Y40/10—Pre-treatment
Abstract
The invention discloses a laser deposition head device with adjustable horizontal spacing of optical powder and an optical powder non-coaxial additive manufacturing method, and belongs to the field of laser additive manufacturing. Comprises a light path system, a powder path system and a powder position adjusting system. Before the component is manufactured by laser deposition, the horizontal distance between the powder spots and the light spots is changed by adjusting the light powder horizontal distance adjusting device, so that the light spots are positioned in front of the powder spots. The invention solves the problem that under the condition of synchronous powder feeding, when the positions of the powder beam and the laser beam coincide, the front edge of the molten pool is accompanied by a large amount of powder splashing, and the utilization rate of the powder is effectively improved.
Description
Technical Field
The invention belongs to the field of laser additive manufacturing, and relates to a laser deposition head with adjustable horizontal spacing of light powder and a non-coaxial additive manufacturing method of the light powder.
Background
Laser deposition manufacturing is a manufacturing technique in which laser is used as a processing heat source, powder is used as a processing raw material, and deposition and stacking are performed layer by layer on a substrate to form a required part. The laser focus and the powder convergence point are output from one device by adopting a coaxial powder feeding mode, so that higher powder utilization rate and better workpiece quality are obtained.
In the research of the existing laser synchronous powder feeding nozzle, most researchers focus on the adjustment of the distance between the light spot and the powder spot in the vertical direction, as described in chinese patents CN102061467A, CN101264519B, and CN106637195B, and all ensure the distance between the light spot and the powder spot in the vertical direction by various devices and methods. However, in the actual additive manufacturing process, due to the hysteresis of the molten pool, the focal point of the laser beam is positioned at the front edge of the molten pool, and under the condition of coaxial powder feeding, the powder beam is accompanied with the splashing of a large amount of powder at the position, and aiming at the phenomenon, a laser deposition head with accurately adjustable horizontal distance of the powder and a corresponding non-coaxial additive manufacturing method of the powder are provided, so that the utilization rate of the powder is further improved.
Disclosure of Invention
The invention aims to solve the problem that a large amount of powder splashes when a powder beam and a laser beam are overlapped in position in a laser deposition manufacturing process, and provides a laser deposition head device with adjustable horizontal spacing of the powder and an additive manufacturing method with non-coaxial powder.
Aiming at the above purpose, the invention is realized by the following technical scheme:
a laser deposition head device with adjustable light powder horizontal spacing comprises a light path system, a light powder position adjusting system and a powder path system;
the optical path system comprises an optical path system connecting shell 1, is connected with the lower end of the optical path system core transmission device and is used as a horizontal direction positioning reference of the laser deposition head.
The powder path system comprises a connecting piece 7, a powder feeding channel 8 and a deposition head 9; the connecting piece 7 connects the deposition head 9 with the lower end 6 of the powder path position adjusting device shell, so that the deposition head 9 is coaxially matched with the lower end 6 of the powder path position adjusting device shell and moves synchronously. The powder feeding channels 8 are uniformly distributed on the bottom conical surface of the deposition head 9, and the extension lines of the powder feeding channels 8 are intersected on the central line of the deposition head 9. The light outlet hole 9-1 at the bottom of the deposition head 9 is a strip-shaped opening, so that the laser beam output from the laser is not blocked.
The powder position adjusting system comprises a horizontal direction locking device 2, a powder horizontal distance adjusting device 3, a powder path positioning device shell upper end 4, a vertical direction fastening structural component 5 and a powder path positioning device shell lower end 6; the powder horizontal distance adjusting device 3 is matched with the upper end 4 of the powder path position adjusting device shell, and the upper end 4 of the powder path position adjusting device shell is driven to move through fine adjustment of the powder horizontal distance adjusting device 3 so as to change the position of the upper end 4 of the powder path position adjusting device shell relative to the light path system connecting shell 1, further adjust the position of the deposition head 9 in the horizontal direction and adjust the distance between a light spot and a powder spot in the horizontal direction; the horizontal locking device 2 is used for fixing the position of the upper end 4 of the powder path positioning device shell in the horizontal direction; the lower end 6 of the powder path positioning device shell is coaxially matched with the upper end 4 of the powder path positioning device shell, and the position of the deposition head 9 in the vertical direction is adjusted through the relative movement of the powder path positioning device shell and the powder path positioning device shell in the vertical direction so as to adjust the distance between the light spot and the powder spot in the vertical direction; the vertical direction fastening structural member 5 is used for fixing the relative position of the upper end 4 of the powder path positioning device shell and the lower end 6 of the powder path positioning device shell, and ensuring the position relation of the upper end 4 and the lower end 6 of the powder path positioning device shell. The upper end 4 of the shell of the powder path positioning device is in contact fit with the inner notch of the shell 1 connected with the optical path system, the upper step surface and the side surface of the shell 1 connected with the optical path system are respectively matched and positioned with the lower surface and the side wall of the boss of the upper end 4 of the shell of the powder path positioning device, and only one degree of freedom in the horizontal direction is reserved.
Further, the light powder horizontal distance adjusting device 3 of the light powder position adjusting system is matched with the corresponding position of the side wall of the upper end 4 of the shell of the powder path position adjusting device through the light powder horizontal distance position adjusting scale 3-1, and the horizontal position of the powder spot convergent point is adjusted through shifting the light powder horizontal distance position adjusting scale 3-1; the light powder horizontal distance position-adjusting ruler 3-1 corresponds to the scale on the light path system connecting shell 1 and is used for determining the horizontal distance between the light spot center and the powder spot center;
further, a light powder horizontal distance adjusting device 3 of the light powder position adjusting system is meshed with a rack corresponding to the upper end 4 of the powder path position adjusting device shell through a light powder horizontal distance position adjusting gear 3-2, and the horizontal position of a powder spot convergence point is adjusted by rotating the light powder horizontal distance position adjusting gear 3-2; the light powder horizontal distance positioning gear 3-2 is used for determining the horizontal distance position between the light spot center and the powder spot center through a dial disc on the light powder horizontal distance positioning gear.
Furthermore, the light powder horizontal direction locking device 2 is screwed into the threaded holes at two sides of the light path system connecting shell 1 through a horizontal direction fastening bolt 2-1 to be contacted with the side wall surface of the upper end 4 of the powder path positioning device shell, and is used for fixing the position of the upper end 4 of the powder path positioning device shell in the horizontal direction;
furthermore, the light powder horizontal direction locking device 2 penetrates through a corresponding hole of the light path system connecting shell 1 through a fastening rod 2-3 to be contacted with the upper end 4 of the powder path positioning device shell, then penetrates through a corresponding threaded hole of the light path system connecting shell 1 through a fastening screw 2-2, and further pins the fastening rod 2-3 to fix the position of the upper end 4 of the powder path positioning device shell in the horizontal direction.
Furthermore, the vertical fastening structural member 5 is a fastening pin, and a pin hole penetrating through the upper end 4 of the powder path positioning device shell is contacted with the lower end 6 of the powder path positioning device shell so as to fix the relative positions of the two.
Furthermore, the elongated opening of the light-emitting hole 9-1 is a straight-notch opening, a rectangle opening, an ellipse opening or a rhombus opening, or a pattern formed by changing the edge angle of the pattern into a round angle.
A method for manufacturing optical powder non-coaxial additive materials comprises the following steps:
the method comprises the following steps: adjusting a light powder horizontal spacing adjusting device (3) before deposition processing to enable the light spot position to be located in front of the powder spot position and set the distance between the light spot and the powder spot in the horizontal direction;
step two: and carrying out deposition forming according to a preset process path to obtain the required additive manufacturing component.
The invention has the beneficial effects that: on the basis of the coaxial powder feeding deposition head, the positions of the light spot and the powder spot can be accurately adjusted in the horizontal direction. Compared with a coaxial powder feeding mode, the position distance between the light spot and the powder spot can be adjusted in the horizontal direction, the powder splashing phenomenon caused by the superposition of the powder spot and the light spot position is reduced, and the utilization rate of the powder is improved.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a partial bottom view of the present invention.
FIG. 3 is a schematic diagram of a laser deposition head with adjustable horizontal spacing of light powder, which is used for manufacturing a straight-arm thin-wall part by a unidirectional scanning method.
FIG. 4 is a schematic diagram of a laser deposition head with adjustable horizontal spacing of light powder, which is used for manufacturing a circular arc thin-wall part in a reciprocating scanning manner.
FIG. 5 is a comparison of the effect of adjusting the horizontal distance of the powder. Wherein, (a) is the picture of the effect of the horizontal distance non-adjustment of the light powder, and (b) is the picture of the effect of the horizontal distance adjustment of the light powder.
In the figure: 1. the optical path system is connected with the shell; 2. a locking device for the horizontal direction of the light powder; 2-1, fastening bolts in the horizontal direction; 2-2, tightening a screw; 2-3, fastening the rod; 3. a light powder horizontal spacing adjusting device; 3-1, adjusting the horizontal distance of the light powder by using a position scale; 3-2, adjusting the gear at the horizontal distance of the light powder; 4. the upper end of the powder path position adjusting device; 5. fastening the structural member in the vertical direction; 6. the lower end of the powder path position adjusting device; 7. a connecting member; 8. a powder feeding channel; 8-1, powder outlet holes; 9. a deposition head; 9-1, light-emitting holes; 10. a laser beam; 11. a powder bundle; 12. a member; 13. a substrate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in more detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The basic idea of the invention is to utilize a horizontal direction positioning device to adjust the position of the powder spot relative to the light spot in the horizontal direction so as to realize the effect of improving the utilization rate of the powder.
Example 1:
taking a one-way scanning mode to manufacture a 316L stainless steel straight-arm thin-wall part as an example, as shown in fig. 1, a coaxial shielding gas and coaxial powder feeding mode is adopted, a heat source manufactured by laser deposition is a YLS4000 fiber laser, a laser deposition head adopts the equipment disclosed by the invention, and the equipment is connected with a YRC1000 teaching robot, and the method specifically comprises the following steps:
the method comprises the following steps: the surface of a 316L stainless steel substrate was polished with 400-mesh sandpaper, the surface attachments were removed, and absolute ethanol was dipped with sterile cotton, and the polished surface was scrubbed and left to air-dry. The substrate is placed on the surface of the stage. The 316L powder is sieved in advance, is placed in a vacuum drying oven, is dried for more than 2 hours in an environment with the temperature of 100 ℃, is then placed in a powder feeder, and the power supply of the equipment is turned on and the rotating speed of the equipment is set to be 2 revolutions per minute. The flow rate of the powder feeder is set to be 6L/min, and the flow rate of the protective gas is set to be 8L/min. Starting a laser and a water cooling machine, and setting the laser power to 1000W in a continuous laser mode; and starting a YRC1000 teaching programmer to perform teaching programming on the motion of the manipulator.
Step two: adjusting the position of the laser deposition head to be positioned above the substrate 13, and enabling the focal point of the light spot and the convergent point of the powder spot to coincide in the vertical direction through a vertical direction position adjusting structure;
step three: screwing out the horizontal fastening bolt 2-1, shifting the powder horizontal interval position-adjusting scale 3-1 to adjust the position of the powder spot in the horizontal direction to enable the powder spot position to be 3 mm behind the position of the light spot, and finally screwing the horizontal fastening bolt 2-1 to fix the positions of the light spot and the powder spot;
step four: moving a laser deposition head by a YRC1000 teaching manipulator to enable a light spot focus of the laser deposition head to be positioned on the surface of a substrate, starting a powder feeder and a laser, and running a program edited in advance to start laser deposition manufacturing;
step five: the required straight arm thin-wall part is obtained by unidirectional scanning deposition.
Example 2:
taking a reciprocating scanning mode to manufacture a TC4 large-size circular arc thin-wall part as an example, as shown in FIG. 2, a coaxial shielding gas and coaxial powder feeding mode is adopted, a heat source manufactured by laser deposition is a YLS4000 fiber laser, a laser deposition head adopts the equipment disclosed by the invention, and the equipment is connected with a YRC1000 teaching robot, and the method specifically comprises the following steps:
the method comprises the following steps: the TC4 substrate surface was polished with 400 mesh sandpaper to remove surface deposits, and the polished surface was scrubbed with absolute ethanol using sterile cotton and left to air dry. The substrate is placed on the surface of the stage. The TC4 powder is sieved in advance, is placed in a vacuum drying oven, is dried for more than 2 hours at the temperature of 120 ℃, is placed in a powder feeder, and is powered on and set to rotate at the speed of 1 r/min. The flow rate of the powder feeder is set to be 8L/min, and the flow rate of the protective gas is set to be 8L/min. Starting a laser and a water cooling machine, and setting the laser power to 800W in a continuous laser mode; and starting a YRC1000 teaching programmer to perform teaching programming on the motion of the manipulator.
Step two: adjusting the position of the laser deposition head to enable the laser deposition head to be positioned above the substrate, and enabling the light spot focus and the powder spot focus to coincide in the vertical direction through a vertical direction positioning device (4);
step three: screwing and loosening the fastening screw 2-2, pulling out the fastening rod 2-3, rotating the light powder horizontal interval adjusting gear 3-2 to adjust the position of the powder spot in the horizontal direction, enabling the position of the light spot to be located 1 mm in front of the position of the powder spot along the scanning direction, inserting the fastening rod 2-3, and finally screwing the fastening screw 2-2 to fix the position of the fastening rod 2-3 so as to ensure the relative position of the light spot and the powder spot;
step four: moving a laser deposition head by a YRC1000 teaching manipulator to enable a light spot focus of the laser deposition head to be positioned on the surface of a substrate, starting a powder feeder and a laser, and running a program edited in advance to start laser deposition manufacturing;
step five: and after the deposition of the first layer is finished, stopping the actions of the laser, the powder feeder and the mechanical arm, repeating the operation of the step three, and readjusting the positions of the light spots and the powder spots in the horizontal direction. Starting the programs of the laser, the powder feeder and the mechanical arm to perform the laser deposition manufacturing of the next layer;
step six: and depositing in a reciprocating manner to obtain the required arc-shaped thin-walled part.
Claims (6)
1. A laser deposition head device with adjustable light powder horizontal spacing is characterized by comprising a light path system, a light powder position adjusting system and a powder path system;
the optical path system comprises an optical path system connecting shell (1), is connected with the lower end of the optical path system core transmission device and is used as a horizontal direction positioning reference of the laser deposition head;
the powder path system comprises a connecting piece (7), a powder feeding channel (8) and a deposition head (9); the connecting piece (7) connects the deposition head (9) with the lower end (6) of the shell of the powder path positioning device, so that the deposition head (9) and the lower end (6) of the shell of the powder path positioning device are coaxially matched and synchronously move; the powder feeding channels (8) are uniformly distributed on the bottom conical surface of the deposition head (9), and the extension lines of the powder feeding channels (8) are intersected on the central line of the deposition head (9); the light outlet (9-1) at the bottom of the deposition head (9) is a strip-shaped opening, so that the laser beam output from the laser is not blocked;
the powder position adjusting system comprises a horizontal direction locking device (2), a powder horizontal distance adjusting device (3), a powder path positioning device shell upper end (4), a vertical direction fastening structural component (5) and a powder path positioning device shell lower end (6); the device for adjusting the horizontal distance of the light powder (3) is matched with the upper end (4) of the shell of the powder path positioning device, and the upper end (4) of the shell of the powder path positioning device is driven to move through fine adjustment of the light powder horizontal distance adjusting device (3) so as to change the position of the upper end (4) of the shell of the powder path positioning device relative to the shell (1) connected with the light path system, and further adjust the position of a deposition head (9) in the horizontal direction so as to adjust the distance between a light spot and a powder spot in the horizontal direction; the horizontal locking device (2) is used for fixing the position of the upper end (4) of the shell of the powder path positioning device in the horizontal direction; the lower end (6) of the powder path positioning device shell is coaxially matched with the upper end (4) of the powder path positioning device shell, and the position of the deposition head (9) in the vertical direction is adjusted through the relative movement of the powder path positioning device shell and the powder path positioning device shell in the vertical direction so as to adjust the distance between the light spot and the powder spot in the vertical direction; the vertical direction fastening structural part (5) is used for fixing the relative position of the upper end (4) of the powder path positioning device shell and the lower end (6) of the powder path positioning device shell to ensure the position relation of the two; the upper end (4) of the shell of the powder path positioning device is in contact fit with an inner notch of the optical path system connecting shell (1), and the upper step surface and the side surface of the optical path system connecting shell (1) are respectively in fit positioning with the lower surface and the side wall of a boss at the upper end (4) of the shell of the powder path positioning device, and only one degree of freedom in the horizontal direction is reserved;
the horizontal locking device (2) is screwed into threaded holes on two sides of the light path system connecting shell (1) through a horizontal fastening bolt (2-1) to be in contact with the surface of the side wall of the upper end (4) of the powder path positioning device shell and is used for fixing the position of the upper end (4) of the powder path positioning device shell in the horizontal direction;
the horizontal locking device (2) penetrates through a corresponding hole of the light path system connecting shell (1) through the fastening rod (2-3) to be contacted with the upper end (4) of the powder path positioning device shell, then penetrates through a corresponding threaded hole of the light path system connecting shell (1) through the fastening screw (2-2), and further pins the fastening rod (2-3) so as to fix the position of the upper end (4) of the powder path positioning device shell in the horizontal direction.
2. The laser deposition head device with adjustable horizontal spacing of the light powder as claimed in claim 1, wherein the light powder horizontal spacing adjusting device (3) of the light powder position adjusting system adjusts the horizontal position of the powder spot convergent point by using the light powder horizontal spacing position adjusting scale (3-1) to match with the corresponding position of the side wall of the upper end (4) of the powder path position adjusting device shell and by shifting the light powder horizontal spacing position adjusting scale (3-1); the light powder horizontal distance position-adjusting ruler (3-1) corresponds to the scale on the light path system connecting shell (1) and is used for determining the horizontal distance between the light spot center and the powder spot center.
3. The laser deposition head device with the adjustable horizontal spacing of the light powder as claimed in claim 1, wherein the light powder horizontal spacing adjusting device (3) of the light powder position adjusting system is meshed with a corresponding rack at the upper end (4) of the housing of the powder path position adjusting device through a light powder horizontal spacing position adjusting gear (3-2), and the horizontal position of the powder spot convergence point is adjusted by rotating the light powder horizontal spacing position adjusting gear (3-2); the light powder horizontal distance position adjusting gear (3-2) is used for determining the horizontal distance position between the light spot center and the powder spot center through a dial disc on the light powder horizontal distance position adjusting gear.
4. The laser deposition head apparatus of claim 1, wherein the vertical fastening structure (5) is a fastening pin, and a pin hole passing through the upper end (4) of the housing of the powder path adjusting apparatus contacts with the lower end (6) of the housing of the powder path adjusting apparatus to fix the relative positions of the two.
5. The laser deposition head device with adjustable horizontal spacing of light powder according to claim 1, wherein the elongated opening of the light emitting hole (9-1) is a straight notch, rectangle, ellipse or diamond, or a pattern formed by changing the corner angle of the pattern into a round corner.
6. The method for manufacturing the non-coaxial optical powder additive by using the laser deposition head device with the adjustable optical powder horizontal spacing as claimed in any one of claims 1 to 5 is characterized by comprising the following steps:
the method comprises the following steps: adjusting a light powder horizontal spacing adjusting device (3) before deposition processing to enable the light spot position to be located in front of the powder spot position and set the distance between the light spot and the powder spot in the horizontal direction;
step two: and carrying out deposition forming according to a preset process path to obtain the required additive manufacturing component.
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| CN202010927527.4A CN112172138B (en) | 2020-09-07 | 2020-09-07 | Laser deposition head device with adjustable light powder horizontal spacing and light powder non-coaxial additive manufacturing method |
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| CN202010927527.4A CN112172138B (en) | 2020-09-07 | 2020-09-07 | Laser deposition head device with adjustable light powder horizontal spacing and light powder non-coaxial additive manufacturing method |
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| CN106513676A (en) * | 2016-08-23 | 2017-03-22 | 西北工业大学 | Light spot and powder spot automatic collaboration controlled laser metal added material manufacturing device and method |
| WO2018178387A1 (en) * | 2017-03-31 | 2018-10-04 | Precitec Gmbh & Co. Kg | Device and method for an additive manufacture |
| CN107962296A (en) * | 2017-11-27 | 2018-04-27 | 上海交通大学 | A kind of powder feeding structure and laser overlaying welding device for laser overlaying welding |
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