CN113770390B - Additive manufacturing equipment and method for isometric crystal component forming - Google Patents

Additive manufacturing equipment and method for isometric crystal component forming Download PDF

Info

Publication number
CN113770390B
CN113770390B CN202111009855.7A CN202111009855A CN113770390B CN 113770390 B CN113770390 B CN 113770390B CN 202111009855 A CN202111009855 A CN 202111009855A CN 113770390 B CN113770390 B CN 113770390B
Authority
CN
China
Prior art keywords
printing
cladding
vertical
rolling
roller
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
Application number
CN202111009855.7A
Other languages
Chinese (zh)
Other versions
CN113770390A (en
Inventor
赵豪
胡俊
陈国超
毕云杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111009855.7A priority Critical patent/CN113770390B/en
Publication of CN113770390A publication Critical patent/CN113770390A/en
Application granted granted Critical
Publication of CN113770390B publication Critical patent/CN113770390B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/90—Means for process control, e.g. cameras or sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/80—Data acquisition or data processing
    • B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/22—Driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/80—Plants, production lines or modules
    • B22F12/88—Handling of additively manufactured products, e.g. by robots
    • 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Laser Beam Processing (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention discloses additive manufacturing equipment and a method for isometric crystal component molding, wherein the additive manufacturing equipment comprises a laser printing module, a rolling module and a real-time detection module; the laser printing module comprises a cladding head, a printing driving mechanism and a cladding posture adjusting mechanism for adjusting the posture of the cladding head, the cladding posture adjusting mechanism is arranged on the printing driving mechanism and comprises a cladding vertical adjusting mechanism and a cladding rotary adjusting mechanism, and the cladding head is arranged on the cladding vertical adjusting mechanism; the rolling module comprises a roller, and the roller is arranged on the printing driving mechanism; the real-time detection module comprises a pressure detection module and a temperature detection module, the pressure detection module is electrically connected with the control module, and the control module is electrically connected with the cladding posture adjusting mechanism. The invention can adjust the relative processing position or posture of rolling, can obtain the isometric crystal with reliable performance, and effectively improves the quality of the additive manufacturing product.

Description

Additive manufacturing equipment and method for isometric crystal component forming
Technical Field
The invention relates to an additive manufacturing apparatus and method, and in particular relates to an additive manufacturing apparatus and method for isometric crystal member molding.
Background
The metal additive manufacturing technology comprises the steps of layering a three-dimensional CAD model, converting three-dimensional information of a part into two-dimensional information, melting and accumulating metal materials layer by layer according to layered slice information by means of laser, electron beams, plasma and the like, and achieving rapid manufacturing of the three-dimensional model. Compared with the traditional material reducing and material waiting processing modes, the metal additive manufacturing technology shortens the product research and development period, reduces the material cost, and can realize the integrated forming of complex parts, thereby being widely applied to the fields of aviation, military industry, energy sources and the like. The metal additive manufacturing technology can be mainly divided into a powder laying type and a powder feeding type/wire feeding type according to the working principle, the powder laying type technology is mainly used for forming small and medium-sized complex components, particularly precise components with complex internal structures, and the powder feeding type/wire feeding type technology is mainly used for forming large-sized bearing components and also can be used for repairing industrial parts. Among the powder feeding type/wire feeding type technologies, the Direct Laser Deposition (DLD) technology has a great advantage in the fields where large-size member molding is required, such as aerospace, ships, nuclear power, and the like, because of its high molding efficiency, good molding dimensional accuracy and surface quality, and the machined member is hardly limited by the size.
In the direct laser deposition process, the printed member undergoes extremely rapid heating and cooling processes, and the metallic structures of different regions exhibit large temperature gradients during the processes, and thus coarse columnar crystals are formed. Due to the anisotropy of the columnar crystals, the material performance difference is accumulated in the layer-by-layer accumulation process, so that the problems of air holes, microcracks, local residual stress and the like are caused, and the performance of parts is seriously influenced. In the prior art, the microstructure performance is mainly improved through a micro-rolling process and an ultrasonic strengthening process, for example, a micro-casting, forging, milling and grinding in-situ composite metal part manufacturing system and method disclosed in the invention application with the application publication number of CN110076566A and a micro-rolling and ultrasonic-assisted laser cladding device disclosed in the invention application with the application publication number of CN 110643996A.
Although the metal additive manufacturing technology can roll in the forming process to improve the structure performance of parts, the metal additive manufacturing technology cannot adjust the distance between the fused deposition module and the rolling module and cannot adjust the distance at any time according to the process requirements, so that an isometric crystal with reliable performance cannot be formed, and the quality of additive manufactured products is difficult to improve.
Disclosure of Invention
The invention aims to overcome the existing problems and provide an additive manufacturing device for forming an isometric crystal component, which can adjust the relative processing position or posture of rolling, can obtain the isometric crystal with reliable performance and effectively improve the quality of an additive manufactured product.
Another object of the present invention is to provide an additive manufacturing method for isometric crystal member molding.
The purpose of the invention is realized by the following technical scheme:
an additive manufacturing device for forming an isometric crystal component comprises a laser printing module, a rolling module and a real-time detection module;
the laser printing module comprises a cladding head, a printing driving mechanism for driving the cladding head to move and a cladding posture adjusting mechanism for adjusting the posture of the cladding head, wherein the cladding posture adjusting mechanism is arranged on the printing driving mechanism and comprises a cladding vertical adjusting mechanism, and the cladding head is arranged on the cladding vertical adjusting mechanism;
the rolling module comprises a roller, and the roller is arranged on the printing driving mechanism;
the real-time detection module comprises a pressure detection module for detecting the rolling pressure of the roller, the pressure detection module is electrically connected with the control module, and the control module is electrically connected with the cladding posture adjusting mechanism.
The working principle of the additive manufacturing equipment for forming the isometric crystal component is as follows:
when the off-line machining track design method is used, a CAD model of a component to be printed is led into CAM software, and off-line machining track design is carried out, wherein the machining track comprises a rolling adjustment section and a formal construction section; setting technological parameters (including laser power, layering thickness, rolling force, rolling temperature, etc.), generating machining program, off-line simulating machining track, and importing program code into machine tool control system after confirming no error.
And (3) installing the printing substrate on a workbench, setting the center of the roller, and determining the origin of the workpiece. And according to the technological parameter requirements and the type of printing materials, the cladding head moves to the required position by adjusting the cladding posture adjusting mechanism, and the cladding head posture is calibrated. And then, conveying metal powder through a powder feeding module, conveying the powder to a cladding head under the protection of inert gas, melting the powder under the action of laser to generate an additive machining track, and simultaneously rolling and rolling the powder by a roller along with the cladding head.
In the processing process of the rolling adjustment section, the pressure detection module detects the rolling force in real time, when the real-time rolling force is larger than the preset rolling force, the control module sends out a corresponding adjustment instruction, the printing driving mechanism drives the roller (the cladding head is synchronous) to ascend for a certain distance firstly, so that the real-time rolling force is equal to the preset rolling force, the cladding vertical adjusting mechanism drives the cladding head to move for the same distance downwards, the height of the laser focus of the cladding head from a printing plane is guaranteed to be unchanged, the result is equivalent to increase of the vertical distance between the laser focus of the cladding head and the center of the roller, and the rolling force is reduced. When the real-time rolling force is smaller than the preset rolling force, the control module sends a corresponding adjusting instruction, in order to prevent the cladding head from colliding with a printing plane, the cladding vertical adjusting mechanism drives the cladding head to move upwards for a certain distance, and the printing driving mechanism drives the roller (cladding head synchronization) to descend for the same distance, so that the real-time rolling force is equal to the preset rolling force, namely, the vertical distance between the laser focus of the cladding head and the center of the roller is reduced, and the rolling force is increased.
After finishing the processing of the rolling adjusting section, performing material additive processing of the formal construction section according to the adjusted processing; and after the printing of the formal construction section is finished, the staff carries out the pickup and the subsequent treatment.
In a preferred embodiment of the present invention, the real-time detection module further includes a temperature detection module for detecting a molten pool below the roll, and the temperature detection module is electrically connected to the control module. Through setting up the temperature detection module, the temperature of real-time detection molten bath, if discover unusually, can adjust the relative gesture of roll in real time through cladding gesture guiding mechanism, be favorable to guaranteeing normal processing.
Further, the temperature detection module is an infrared temperature detector, and the infrared temperature detector is arranged on the printing driving mechanism through a mounting plate.
According to a preferable scheme of the invention, the cladding posture adjusting mechanism further comprises a cladding rotation adjusting mechanism, the cladding rotation adjusting mechanism is arranged on the cladding vertical adjusting mechanism, and the cladding head is arranged on the cladding rotation adjusting mechanism. Through the structure, the temperature detection module is aligned to the tissue right below the center of the roller to measure the temperature and simultaneously upload the temperature signal to the control module. When the real-time rolling temperature is higher than the preset rolling temperature, the control module sends a corresponding adjusting instruction, the cladding vertical adjusting mechanism drives the cladding head to move upwards for a certain distance, and the cladding rotary adjusting mechanism drives the cladding head to rotate for a certain angle in the direction away from the roller, so that the horizontal distance between the laser focus of the cladding head and the center of the roller is increased, and the rolling temperature is reduced. When the real-time rolling temperature is lower than the preset rolling temperature, the control module sends a corresponding adjusting instruction, the cladding rotary adjusting mechanism drives the cladding head to rotate for a certain angle in the direction close to the roller, and the cladding vertical adjusting mechanism drives the cladding head to move downwards for a certain distance, so that the horizontal distance between the laser focus of the cladding head and the center of the roller is reduced, and the rolling temperature is increased.
Further, the cladding rotation adjusting mechanism comprises a cladding rotation driving motor, and the cladding head is connected to the driving end of the cladding rotation driving motor through a fixing structure.
According to a preferable scheme of the invention, the cladding vertical adjusting mechanism comprises an adjusting vertical driving motor and an adjusting vertical transmission assembly, and the adjusting vertical transmission assembly comprises an adjusting vertical lead screw and an adjusting vertical lead screw nut.
In a preferred embodiment of the present invention, the roller is disposed on a connecting rod, a bottom end of the connecting rod is connected to the roller, and a top end of the connecting rod is connected to the print driving mechanism through a pressure detecting module. Through above-mentioned structure, in the course of working, rolling force passes through on roll and connecting rod transmit the pressure detection module, and then the pressure detection module detects.
In a preferred embodiment of the present invention, the printing driving mechanism includes a printing transverse driving mechanism, a printing vertical driving mechanism, and a printing rotary driving mechanism, the printing rotary driving mechanism is disposed on the printing vertical driving mechanism, and the printing vertical driving mechanism is disposed on the printing transverse driving mechanism.
Further, the printing transverse driving mechanism comprises a printing transverse driving motor and a printing transverse transmission assembly, and the printing transverse driving motor is fixedly arranged on the printing rack; the printing transverse transmission assembly comprises a printing transverse screw rod and a printing transverse screw nut, and the printing vertical driving mechanism is connected with the printing transverse screw nut through a printing transverse moving frame. Through the structure, the cladding head and the roller can move transversely under the driving of the printing transverse driving motor, and the printing and rolling work can be synchronously carried out.
Further, the printing vertical driving mechanism comprises a printing vertical driving motor and a printing vertical transmission assembly, and the printing vertical driving motor is fixedly arranged on the printing transverse moving frame; the printing vertical transmission assembly comprises a printing vertical screw rod and a printing vertical screw nut, and the printing rotary driving mechanism is connected with the printing vertical screw nut through a vertical moving frame. Through the structure, the cladding head and the roller can move vertically and are close to or far away from the workbench under the driving of the printing vertical driving motor.
Further, the printing rotation driving mechanism comprises a printing rotation driving motor, and an output shaft of the printing rotation driving motor is fixedly connected with the mounting plate; the rotating plane of the printing rotation driving motor is parallel to the horizontal plane;
the cladding vertical adjusting mechanism and the roller are fixedly arranged on the mounting plate. Through the structure, the cladding head and the roller can rotate horizontally under the driving of the printing rotary driving motor, and the printing and rolling work can be synchronously carried out.
In a preferred embodiment of the present invention, the present invention further includes a bearing driving mechanism for driving the workbench to move, the bearing driving mechanism includes a bearing transverse driving mechanism and a bearing rotary driving mechanism, and the bearing rotary driving mechanism is disposed on the bearing transverse driving mechanism.
Further, the driving direction of the bearing transverse driving mechanism is perpendicular to the driving directions of the printing vertical driving mechanism and the printing transverse driving mechanism, the bearing transverse driving mechanism comprises a bearing transverse driving motor and a bearing transverse transmission assembly, and the bearing transverse driving motor is fixedly arranged on the base; the bearing transverse transmission assembly comprises a bearing transverse screw rod and a bearing transverse screw rod nut, and the bearing rotary driving mechanism is connected with the bearing transverse screw rod nut through a bearing transverse moving frame. Through the structure, the workbench can move transversely under the driving of the bearing transverse driving motor, and the cladding head and the roller are matched for working.
Further, the bearing rotary driving mechanism comprises a first rotary driving mechanism and a second rotary driving mechanism, the rotary plane of the first rotary driving mechanism is parallel to the horizontal plane, and the rotary plane of the second rotary driving mechanism is perpendicular to the rotary plane of the first rotary driving mechanism and the driving direction of the printing transverse driving mechanism.
Further, the first rotary drive mechanism includes a first rotary drive motor, and an output shaft of the first rotary drive motor is connected to the table.
Further, the second rotary driving mechanism comprises a second rotary driving motor, and an output shaft of the second rotary driving motor is connected with the rotating arm; the first rotary driving mechanism is arranged on the rotary arm.
Through the structure, the workbench can rotate on the horizontal plane and the vertical plane under the driving of the first rotary driving motor and the second rotary driving motor, and the cladding heads and the roller are matched for working.
An additive manufacturing method for isometric crystal member molding, comprising the following steps:
(1) Importing a model of a component to be printed into processing software, and designing a processing track, wherein the processing track comprises a rolling adjustment section and a formal construction section; setting technological parameters including rolling pressure;
(2) Starting a laser printing module and a powder feeding module; the powder feeding module conveys powder to a cladding head, and the powder is melted under the action of laser;
(3) According to the set processing track, the printing driving mechanism drives the cladding head and the roller to move on the workbench; the roller is rolled along with the cladding head;
(4) In the processing process of the rolling adjustment section, the rolling force is detected in real time through a pressure detection module;
when the real-time rolling force is larger than the preset rolling force, the control module sends a corresponding adjusting instruction, the printing driving mechanism drives the roller and the cladding head to synchronously rise for a certain distance, and the rolling force acting on the material of the forming area is reduced, so that the real-time rolling force is equal to the preset rolling force; the cladding vertical adjusting mechanism drives the cladding head to move downwards for the same distance, so that the height of the laser focus of the cladding head from the printing plane is ensured to be unchanged;
when the real-time rolling force is smaller than the preset rolling force, the control module sends a corresponding adjusting instruction, the cladding vertical adjusting mechanism drives the cladding head to move upwards for a certain distance, the printing driving mechanism drives the roller and the cladding head to synchronously descend for the same distance, and the rolling force acting on the material in the forming area is increased, so that the real-time rolling force is equal to the preset rolling force;
(5) After finishing the processing of the rolling adjusting section, performing material additive processing of the formal construction section according to the adjusted processing;
(6) And after the formal construction section is printed, the staff carries out pickup and subsequent processing.
In a preferable scheme of the invention, in the step (2), before the laser printing module and the powder feeding module are started, the atmosphere circulating module is started to carry out circulating gas washing until the oxygen content in the working environment is reduced to be below a set range.
In a preferable scheme of the invention, in the step (4), the rolling temperature is detected in real time by a temperature detection module in the processing process of the rolling adjustment section;
when the real-time rolling temperature is higher than the preset rolling temperature, the control module sends out a corresponding adjustment instruction; the cladding vertical adjusting mechanism drives the cladding head to move upwards for a certain distance, and the cladding rotary adjusting mechanism drives the cladding head to rotate for a certain angle in the direction away from the roller, so that the horizontal distance between the laser focus of the cladding head and the center of the roller is increased, and the rolling temperature is reduced;
when the real-time rolling temperature is lower than the preset rolling temperature, the control module sends out a corresponding adjustment instruction; the cladding rotary adjusting mechanism drives the cladding head to rotate a certain angle in the direction close to the roller, the cladding vertical adjusting mechanism drives the cladding head to move downwards for a certain distance, the horizontal distance between the laser focus of the cladding head and the center of the roller is reduced, and the rolling temperature is increased.
Compared with the prior art, the invention has the following beneficial effects:
1. the additive manufacturing equipment can adjust the relative processing position or posture of rolling in real time, can obtain the isometric crystal with reliable performance, and effectively improves the quality of additive manufactured products.
2. Through setting up the pressure detection module that can real-time detection rolling force, when real-time rolling force is greater than (is less than) predetermined rolling force, can reduce (increase) rolling force through the distance that risees (reduces) the roll to guarantee that rolling is processed with suitable rolling parameter to obtain thin isometric crystal tissue.
3. The cladding head and the roller are arranged on the same printing driving mechanism, and the position or the posture of the cladding head is adjusted through the cladding vertical adjusting mechanism, so that the distance between the laser focus of the cladding head and the center of the roller is changed, and the distance between the laser focus of the cladding head and the center of the roller is adjusted according to needs.
Drawings
Fig. 1 is a front view of an additive manufacturing apparatus for isometric crystal member molding in the present invention.
Fig. 2 is a schematic perspective view of an additive manufacturing apparatus for isometric crystal member molding according to the present invention.
Fig. 3 is a schematic perspective view of a cladding head, a rolling module and a real-time detection module according to the present invention.
Fig. 4-6 are front views of the cladding head, the rolling module and the real-time detection module in the present invention.
Fig. 7 is a work flow diagram of an additive manufacturing method for isometric crystal member molding in the invention.
Fig. 8 is a schematic coordinate diagram of the cladding posture adjusting mechanism of the present invention for adjusting the vertical height.
Fig. 9 is a schematic coordinate diagram of horizontal distance adjustment performed by the cladding posture adjustment mechanism in the present invention.
Detailed Description
In order to make those skilled in the art understand the technical solutions of the present invention well, the following description of the present invention is provided with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
Example 1
The additive manufacturing equipment for isometric crystal component forming in the embodiment comprises a cooling module, an atmosphere circulating module, a powder feeding module, a work bearing module, a laser printing module, a rolling module and a real-time detection module.
Wherein the cooling module comprises a water cooling machine (not shown in the figure) for providing circulating cooling, and the specific structure can refer to the existing printing equipment.
The atmosphere circulating module is used for circularly purifying gas in a working environment and reducing the oxygen content in a set range; the specific structure can refer to the existing printing equipment.
The powder feeding module comprises a powder feeder for conveying metal powder to the cladding head 1, and the powder feeder is matched with laser to carry out cladding manufacturing; the specific structure can refer to the existing printing equipment.
Referring to fig. 1-2, the laser printing module includes a laser transmitter, a cladding head 1, a printing driving mechanism for driving the cladding head 1 to move, and a cladding posture adjusting mechanism for adjusting the posture of the cladding head 1, and the laser transmitter transmits laser to the cladding head 1 through an optical fiber; the cladding posture adjusting mechanism is arranged on the printing driving mechanism and comprises a cladding vertical adjusting mechanism and a cladding rotary adjusting mechanism, and the cladding head 1 is arranged on the cladding vertical adjusting mechanism. Specifically, as other structures of the laser printing module in the present embodiment, a printing apparatus in the related art may be referred to.
Referring to fig. 3-6, the cladding rotation adjusting mechanism is arranged on the cladding vertical adjusting mechanism, and the cladding head 1 is arranged on the cladding rotation adjusting mechanism. Further, the cladding rotation adjusting mechanism comprises a cladding rotation driving motor 2 (DD motor), and the cladding head 1 is connected to a driving end of the cladding rotation driving motor 2 through a fixing structure.
Referring to fig. 3-6, the cladding vertical adjusting mechanism (linear module) includes an adjusting vertical driving motor 3 and an adjusting vertical transmission assembly, and the adjusting vertical transmission assembly includes an adjusting vertical lead screw and an adjusting vertical lead screw nut. Of course, the cladding vertical adjusting mechanism can also adopt a driving cylinder.
Referring to fig. 1-2, the printing driving mechanism includes a printing transverse driving mechanism, a printing vertical driving mechanism, and a printing rotary driving mechanism, the printing rotary driving mechanism is disposed on the printing vertical driving mechanism, and the printing vertical driving mechanism is disposed on the printing transverse driving mechanism.
Further, the printing transverse driving mechanism comprises a printing transverse driving motor 4 and a printing transverse transmission assembly, and the printing transverse driving motor 4 is fixedly arranged on the printer frame 5; the printing transverse transmission assembly comprises a printing transverse screw rod and a printing transverse screw nut, and the printing vertical driving mechanism is connected with the printing transverse screw nut through a printing transverse moving frame 6. Of course, the printing transverse transmission assembly can also adopt a gear rack structure. Through the structure, the cladding head 1 and the roller 7 can move transversely under the driving of the printing transverse driving motor 4, and the printing and rolling work can be synchronously carried out.
Further, the printing vertical driving mechanism comprises a printing vertical driving motor 8 and a printing vertical transmission assembly, and the printing vertical driving motor 8 is fixedly arranged on the printing transverse moving frame 6; the printing vertical transmission assembly comprises a printing vertical screw rod and a printing vertical screw nut, and the printing rotary driving mechanism is connected with the printing vertical screw nut through a vertical moving frame 9. Of course, the printing vertical transmission assembly can also adopt a gear rack structure. Through the structure, the cladding head 1 and the roller 7 can move vertically and are close to or far away from the workbench 21 under the driving of the printing vertical driving motor 8.
Further, the printing rotary driving mechanism comprises a printing rotary driving motor 10, and an output shaft of the printing rotary driving motor 10 is fixedly connected with the mounting plate 11; the rotation plane of the printing rotation driving motor 10 is parallel to the horizontal plane; the cladding vertical adjusting mechanism and the roller 7 are fixedly arranged on the mounting plate 11. Through the structure, the cladding head 1 and the roller 7 can horizontally rotate under the driving of the printing rotary driving motor 10, and the printing and rolling work can be synchronously carried out. In this embodiment, the printing rotation driving mechanism does not operate.
Referring to fig. 1-2, the work carrying module includes a work table 21 and a carrying driving mechanism for driving the work table 21 to move, the carrying driving mechanism includes a carrying transverse driving mechanism and a carrying rotary driving mechanism, and the carrying rotary driving mechanism is disposed on the carrying transverse driving mechanism.
Further, the driving direction of the bearing transverse driving mechanism is perpendicular to the driving directions of the printing vertical driving mechanism and the printing transverse driving mechanism, the bearing transverse driving mechanism comprises a bearing transverse driving motor and a bearing transverse transmission assembly, and the bearing transverse driving motor is fixedly arranged on the base 13; the bearing transverse transmission assembly comprises a bearing transverse screw rod and a bearing transverse screw nut, and the bearing rotary driving mechanism is connected with the bearing transverse screw nut through a bearing transverse moving frame 14. Through the structure, the workbench 21 can move transversely under the driving of the bearing transverse driving motor, and the cladding head 1 and the roller 7 are matched for working.
Further, the bearing rotary driving mechanism comprises a first rotary driving mechanism and a second rotary driving mechanism, the rotary plane of the first rotary driving mechanism is parallel to the horizontal plane, and the rotary plane of the second rotary driving mechanism is perpendicular to the rotary plane of the first rotary driving mechanism and the driving direction of the printing transverse driving mechanism. The first rotary drive mechanism includes a first rotary drive motor 15, and an output shaft of the first rotary drive motor 15 is connected to the table 21. The second rotary driving mechanism comprises a second rotary driving motor 16, and an output shaft of the second rotary driving motor 16 is connected with a rotating arm 17; the first rotary drive mechanism is provided on the rotary arm 17. Through the structure, the workbench 21 can rotate on the horizontal plane and the vertical plane under the driving of the first rotary driving motor 15 and the second rotary driving motor 16, and the work of the cladding head 1 and the roller 7 is matched.
Referring to fig. 1-6, the rolling module comprises a roller 7, the roller 7 is arranged on a connecting rod 19, the connecting rod 19 is connected with the roller 7 at the bottom end, and the top end is connected with a printing driving mechanism through a pressure detection module 18. With the above structure, during the machining process, the rolling force is transmitted to the pressure detection module 18 through the roll 7 and the connecting rod 19, and then the pressure detection module 18 detects the rolling force.
Referring to fig. 1-6, the real-time detection module comprises a pressure detection module 18 for detecting the rolling pressure of the roller 7 and a temperature detection module 20 for detecting a molten pool below the roller 7, both the pressure detection module 18 and the temperature detection module 20 are electrically connected with a control module, and the control module is electrically connected with the cladding attitude adjusting mechanism. Specifically, the structure of the control module may refer to a control system of an existing printing apparatus.
Further, the temperature detection module 20 is an infrared temperature detector, and the infrared temperature detector is arranged on the printing driving mechanism through the mounting plate 11. Through setting up temperature detection module 20, the temperature of real-time detection molten bath, if find unusual, can pass through cladding posture adjustment mechanism real-time adjustment roll 7's relative gesture, be favorable to guaranteeing normal processing.
Referring to fig. 1 to 6, the additive manufacturing apparatus for isometric crystal member molding in the present embodiment operates on the following principle:
when the off-line machining track design method is used, a CAD model of a component to be printed is led into CAM software, and off-line machining track design is carried out, wherein the machining track comprises a rolling adjustment section and a formal construction section; setting technological parameters (including laser power, layering thickness, rolling force, rolling temperature and the like), generating a machining program, performing off-line machining track simulation, and importing a program code into a machine tool control system after confirming that no errors exist.
The printing substrate is mounted on a workbench 21, the center of the roller 7 is subjected to tool setting, and the origin of the workpiece is determined. According to the technological parameter requirements and the types of printing materials, the cladding head 1 is moved to a required position by adjusting the cladding posture adjusting mechanism, and the posture of the cladding head 1 is calibrated. And then, metal powder is conveyed through a powder feeding module, the powder is conveyed to the cladding head 1 under the protection of inert gas, then the powder is melted under the action of laser, an additive processing track is generated, and meanwhile, a roller 7 is rolled and rolled along with the cladding head 1.
In the processing process of the rolling adjustment section, the pressure detection module 18 detects the rolling force in real time, when the real-time rolling force is larger than the preset rolling force, the control module sends out a corresponding adjustment instruction, the printing driving mechanism drives the roller 7 (the cladding head 1 is synchronous) to ascend for a certain distance firstly, so that the real-time rolling force is equal to the preset rolling force, the cladding vertical adjusting mechanism drives the cladding head 1 to move downwards for the same distance, the height of the laser focus of the cladding head 1 from a printing plane is ensured to be unchanged, the result is equivalent to increase the vertical distance between the laser focus of the cladding head 1 and the center of the roller 7, and the rolling force is reduced. When the real-time rolling force is smaller than the preset rolling force, the control module sends a corresponding adjusting instruction, in order to prevent the cladding head 1 from colliding with a printing plane, the cladding vertical adjusting mechanism firstly drives the cladding head 1 to move upwards for a certain distance, and the printing driving mechanism then drives the roller 7 (the cladding head 1 is synchronous) to descend for the same distance, so that the real-time rolling force is equal to the preset rolling force, namely the vertical distance between the laser focus of the cladding head 1 and the center of the roller 7 is reduced, and the rolling force is increased.
After finishing the processing of the rolling adjusting section, performing material additive processing of the formal construction section according to the adjusted processing; and after the printing of the formal construction section is finished, the staff carries out the pickup and the subsequent treatment.
Referring to fig. 1-9, the additive manufacturing method for isometric crystal member molding in the present embodiment includes the steps of:
s1: importing the CAD model of the component to be printed into CAM software, designing off-line processing track, and setting technological parameters (including laser power, layering thickness and rolling force F) 0 Rolling temperature T 0 And the like), meanwhile, in order to reserve an initial margin, the front m layer is a reserved adjusting layer, the m layer to the Nth layer are actually required machining components, a machining program is generated, off-line machining track simulation is carried out, and program codes are imported into a machine tool control system after the correctness is confirmed.
S2: the printing substrate is arranged on a workbench 21, the center of the roller 7 is subjected to tool setting, and the origin of the workpiece is determined.
S3: controlling a cladding head 1 pose adjusting mechanism in a control system according to the technological parameter requirements and the types of printing materials, presetting the cladding head 1 pose to a required position by adjusting a cladding vertical adjusting mechanism (linear module) and a cladding rotary adjusting mechanism (DD motor), and calibrating the cladding head 1 pose.
S4: and (3) checking that the connection state of each part of the equipment is intact, and the connection state of the circuit gas circuit part is intact, after the check is confirmed to be correct, closing the door of the laser room, opening the atmosphere circulating system, and performing circulating gas washing until the oxygen content in the laser room is reduced to be below the specified range (the oxygen content is determined according to different materials).
S5: and starting a water cooler and a powder feeder in the control system, then starting a laser, and clicking to start executing the numerical control machining program.
S6: the powder feeder conveys metal powder to the cladding head 1, the powder is conveyed to the cladding head 1 under the protection of inert gas, then the powder is melted under the action of laser to generate an additive processing track, and meanwhile, the roller 7 rolls along with the cladding head 1.
S7: during the machining process, the pressure detection module 18 monitors the rolling force in real time, if the rolling force F is larger than the preset value>F 0 (preset value in S1), the control system sends out an instruction, and the printing driving mechanism drives the roller 7 to ascend firstly (the cladding head 1 is synchronous)Spacing until the rolling pressure F = F is satisfied 0 At this time, the moving distance is h 1 Then the linear module is driven to drive the DD motor to move downwards h 1 The height of the laser focus of the cladding head 1 from the printing plane is ensured to be unchanged, and the result is equivalent to increasing the vertical distance between the laser focus of the cladding head 1 and the center of the roller 7 and reducing the rolling force, as shown in fig. 5 and 8; if rolling force F<F 0 (preset value in S1), the control system sends out an instruction, and in order to prevent the cladding head 1 from colliding with a printing plane, the linear module is driven to drive the DD motor to move upwards h 1 Then the print driving mechanism drives the roller 7 again (the cladding head 1 is synchronous) to descend for the same distance until the rolling pressure F = F is met 0 The final result is equivalent to reducing the vertical distance between the laser focus of the cladding head 1 and the center of the roller 7 and increasing the rolling force.
S8: in the processing process, the infrared temperature measurement module aims at the tissue right below the center of the roller 7 to perform infrared temperature measurement, and simultaneously returns a temperature signal to the control system, if the rolling temperature T is high>T 0 (the preset value in S1), the control system sends out an instruction to control the linear module to drive the DD motor to move upwards L AA 'to A', then the DD motor rotates clockwise by theta angle to A 'B', thereby increasing the horizontal distance between the laser focus of the cladding head 1 and the center of the roller 7 (increasing L) BB "), the rolling temperature is lowered, as in fig. 6 and 9; if rolling temperature T<T 0 (the preset value in S1), the control system sends out an instruction, the DD motor rotates anticlockwise by an angle theta at first, and then the linear module moves downwards by an angle L AA 'to A' to reduce the horizontal distance between the laser focus of the cladding head 1 and the center of the roller 7 (reduce L) BB "), the rolling temperature was increased.
S9: and after the rolling pressure and the rolling temperature are sequentially adjusted in the initial m layers in the steps S7 and S8, components from the m layer to the N layer are printed, after the printing is finished, the control system sequentially closes each module, after the oxygen content in the laser room is increased back to the oxygen content of the air, the temperature of the components is reduced to the room temperature, an operator takes out the components and performs post-processing, and the printing work is finished.
Example 2
Unlike embodiment 1, the table of the present embodiment is a rectangular table fixed to a base, and the members are stacked and molded layer by layer on the printing substrate.
In this embodiment, the printing rotary drive mechanism performs rotary work in the absence of the carrying rotary drive mechanism; the roller 7 is started in a rotating function, the printing rotation driving motor 10 works, the roller 7 dynamically rotates along with the processing track, and the axis direction of the roller 7 is perpendicular to the processing track, so that the cladding head 1 can correspondingly move according to the fixed installation relation of the mounting plate 11 and the roller 7, and four-axis linkage processing is carried out.
The embodiment is mainly used for forming large-scale components without reverse buckling angles, and is particularly suitable for processing some large-scale bearing components. According to the characteristics of the actual printing workpiece structure, a user can switch the two-axis rotary workbench and the rectangular workbench, so that the equipment has wider application value.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and equivalents thereof, which are intended to be included in the scope of the present invention.

Claims (6)

1. Additive manufacturing equipment for forming isometric crystal components is characterized by comprising a laser printing module, a rolling module and a real-time detection module;
the laser printing module comprises a cladding head, a printing driving mechanism for driving the cladding head to move and a cladding posture adjusting mechanism for adjusting the posture of the cladding head, wherein the cladding posture adjusting mechanism is arranged on the printing driving mechanism and comprises a cladding vertical adjusting mechanism, and the cladding head is arranged on the cladding vertical adjusting mechanism;
the rolling module comprises a roller, and the roller is arranged on the printing driving mechanism;
the real-time detection module comprises a pressure detection module for detecting the rolling pressure of the roller, the pressure detection module is electrically connected with the control module, and the control module is electrically connected with the cladding attitude adjusting mechanism;
the real-time detection module also comprises a temperature detection module for detecting a molten pool below the roller, and the temperature detection module is electrically connected with the control module;
the cladding posture adjusting mechanism further comprises a cladding rotation adjusting mechanism, the cladding rotation adjusting mechanism is arranged on the cladding vertical adjusting mechanism, and the cladding head is arranged on the cladding rotation adjusting mechanism;
the additive manufacturing method of the additive manufacturing apparatus comprises the steps of:
(1) Importing a model of a component to be printed into processing software, and designing a processing track, wherein the processing track comprises a rolling adjustment section and a formal construction section; setting technological parameters including rolling pressure;
(2) Starting a laser printing module and a powder feeding module; the powder feeding module conveys powder to a cladding head, and the powder is melted under the action of laser;
(3) According to the set processing track, the printing driving mechanism drives the cladding head and the roller to move on the workbench; the roller is rolled along with the cladding head;
(4) In the processing process of the rolling adjustment section, the rolling force is detected in real time through a pressure detection module;
when the real-time rolling force is larger than the preset rolling force, the control module sends a corresponding adjusting instruction, the printing driving mechanism drives the roller and the cladding head to synchronously rise for a certain distance, and the rolling force acting on the material of the forming area is reduced, so that the real-time rolling force is equal to the preset rolling force; the cladding vertical adjusting mechanism drives the cladding head to move downwards for the same distance, so that the height of the laser focus of the cladding head from the printing plane is ensured to be unchanged;
when the real-time rolling force is smaller than the preset rolling force, the control module sends a corresponding adjusting instruction, the cladding vertical adjusting mechanism drives the cladding head to move upwards for a certain distance, the printing driving mechanism drives the roller and the cladding head to synchronously descend for the same distance, and the rolling force acting on the material in the forming area is increased, so that the real-time rolling force is equal to the preset rolling force;
when the real-time rolling temperature is higher than the preset rolling temperature, the control module sends out a corresponding adjusting instruction; the cladding vertical adjusting mechanism drives the cladding head to move upwards for a certain distance, the cladding rotary adjusting mechanism drives the cladding head to rotate for a certain angle in the direction away from the roller, the horizontal distance between the laser focus of the cladding head and the center of the roller is increased, and the rolling temperature is reduced;
when the real-time rolling temperature is lower than the preset rolling temperature, the control module sends out a corresponding adjustment instruction; the cladding rotary adjusting mechanism drives the cladding head to rotate a certain angle in the direction close to the roller, the cladding vertical adjusting mechanism drives the cladding head to move downwards for a certain distance, the horizontal distance between the laser focus of the cladding head and the center of the roller is reduced, and the rolling temperature is increased;
(5) After finishing the processing of the rolling adjusting section, performing material additive processing of the formal construction section according to the adjusted processing;
(6) And after the printing of the formal construction section is finished, the staff carries out the pickup and the subsequent treatment.
2. The additive manufacturing apparatus for molding of an isometric crystal member according to claim 1, wherein the rollers are arranged on a connecting rod, the bottom end of the connecting rod is connected with the rollers, and the top end of the connecting rod is connected with the printing driving mechanism through the pressure detection module.
3. The additive manufacturing apparatus for isometric crystal member molding according to claim 1, wherein the printing drive mechanism comprises a printing transverse drive mechanism, a printing vertical drive mechanism, and a printing rotary drive mechanism, the printing rotary drive mechanism being disposed on the printing vertical drive mechanism, the printing vertical drive mechanism being disposed on the printing transverse drive mechanism;
the printing transverse driving mechanism comprises a printing transverse driving motor and a printing transverse transmission assembly, and the printing transverse driving motor is fixedly arranged on the printer frame; the printing transverse transmission assembly comprises a printing transverse screw rod and a printing transverse screw rod nut, and the printing vertical driving mechanism is connected with the printing transverse screw rod nut through a printing transverse moving frame.
4. The additive manufacturing apparatus for isometric crystal member molding according to claim 3, wherein the printing vertical driving mechanism comprises a printing vertical driving motor and a printing vertical transmission assembly, and the printing vertical driving motor is fixedly arranged on the printing transverse moving frame; the printing vertical transmission assembly comprises a printing vertical screw rod and a printing vertical screw nut, and the printing rotary driving mechanism is connected with the printing vertical screw nut through a vertical moving frame.
5. The additive manufacturing apparatus for isometric crystal member formation according to claim 3, wherein the printing rotary drive mechanism comprises a printing rotary drive motor, an output shaft of which is fixedly connected with the mounting plate; the rotating plane of the printing rotation driving motor is parallel to the horizontal plane;
the cladding vertical adjusting mechanism and the roller are fixedly arranged on the mounting plate.
6. The additive manufacturing apparatus for shaping an isometric crystal member according to claim 1, further comprising a carrier drive mechanism for driving the worktable to move, wherein the carrier drive mechanism comprises a carrier transverse drive mechanism and a carrier rotary drive mechanism, and the carrier rotary drive mechanism is arranged on the carrier transverse drive mechanism.
CN202111009855.7A 2021-08-31 2021-08-31 Additive manufacturing equipment and method for isometric crystal component forming Active CN113770390B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111009855.7A CN113770390B (en) 2021-08-31 2021-08-31 Additive manufacturing equipment and method for isometric crystal component forming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111009855.7A CN113770390B (en) 2021-08-31 2021-08-31 Additive manufacturing equipment and method for isometric crystal component forming

Publications (2)

Publication Number Publication Date
CN113770390A CN113770390A (en) 2021-12-10
CN113770390B true CN113770390B (en) 2023-04-14

Family

ID=78840360

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111009855.7A Active CN113770390B (en) 2021-08-31 2021-08-31 Additive manufacturing equipment and method for isometric crystal component forming

Country Status (1)

Country Link
CN (1) CN113770390B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114310492A (en) * 2022-03-03 2022-04-12 季华实验室 Composite processing equipment
CN115007881A (en) * 2022-06-16 2022-09-06 广东省科学院智能制造研究所 Rotary extrusion device, composite additive manufacturing system and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106003712B (en) * 2016-05-18 2017-12-12 太原科技大学 A kind of rolling device for increasing material manufacturing
CN109530689B (en) * 2018-11-26 2021-02-02 西安增材制造国家研究院有限公司 Reinforced assembly, additive machining device with online reinforcing effect and machining method
CN110080049B (en) * 2019-04-04 2020-08-11 华中科技大学 Device and method for repairing steel rail by increasing and decreasing materials by combining laser cladding and machining
CN110076566A (en) * 2019-05-13 2019-08-02 华中科技大学 A kind of the metal parts manufacture system and method for micro- casting forging milling In-situ reaction
CN111215898B (en) * 2019-10-28 2022-05-03 南京航空航天大学 Electric arc additive synchronous ultrasonic hot rolling and rapid cooling combined machining device and method
CN112439904A (en) * 2020-11-02 2021-03-05 中国航空制造技术研究院 Stirring rolling composite additive manufacturing equipment and method for titanium alloy structural member
CN112719273B (en) * 2020-12-18 2021-11-02 燕山大学 Surface pretreatment and restoration rolling integrated device based on semi-solid slurry
CN112496344B (en) * 2021-02-02 2021-07-02 季华实验室 Direct metal deposition additive manufacturing equipment

Also Published As

Publication number Publication date
CN113770390A (en) 2021-12-10

Similar Documents

Publication Publication Date Title
CN113770390B (en) Additive manufacturing equipment and method for isometric crystal component forming
CN107336023B (en) Composite machining center for increasing and decreasing materials
CN109202082B (en) Additive, equal-material and subtractive composite metal 3D laser forming device and method thereof
CN101293419B (en) Digital full-automatic register system for glass screen painting
US20170144242A1 (en) 3d metal printing device and process
CN201195245Y (en) Five-shaft five-linkage machining center
CN101690993A (en) Multi-axis linkage numerical control laser processing system
CN113172242B (en) Selective laser melting forming real-time monitoring device and implementation method
CN104625061A (en) Novel comprehensive CNC (computer numerical control) 3D (three-dimensional) printer and application method thereof
CN1501201A (en) CAM system, CAM program, and method for controlling CAM system
CN205129373U (en) Compound 3D printing apparatus of plasma melting and multiaxis milling process based on internet signal transmission
CN102179517A (en) Laser-induction hybrid melting direct forming method and device
CN102814512A (en) On-line measuring method for radials profile of compressor disc-like part of engine
CN110355366B (en) Powder spreader mechanism and metal additive manufacturing device and method capable of detecting quality on line
CN109175367B (en) Additive and equal-material composite metal 3D laser forming device and method thereof
CN210548098U (en) Powder spreader mechanism and metal additive manufacturing device capable of detecting quality on line
CN111168068A (en) Apparatus for processing material with increased or decreased amount and control method
Kubela et al. Investigation of position accuracy of industrial robots and online methods for accuracy improvement in machining processes
CN106681274A (en) Mesoscale elastic thin-walled workpiece deformation on-line prediction and compensation method
KR20160116167A (en) Forming device for three-dimensional structure and forming method thereof
CN201519839U (en) Multi-shaft linkage numerical control laser processing system
CN102248228B (en) Numerical-control hobbing device for face gear
CN109551179B (en) Method for manufacturing metal part
CN1264630C (en) Laser quick forming system and forming method with six shaft machine hand for powder material
CN110509567B (en) 3D forming machine and method

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