CN113000856A - Machining method of thin metal piece based on three-dimensional digital design - Google Patents
Machining method of thin metal piece based on three-dimensional digital design Download PDFInfo
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- CN113000856A CN113000856A CN202110186137.0A CN202110186137A CN113000856A CN 113000856 A CN113000856 A CN 113000856A CN 202110186137 A CN202110186137 A CN 202110186137A CN 113000856 A CN113000856 A CN 113000856A
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- Prior art keywords
- thin metal
- metal
- thin
- dimensional digital
- metal piece
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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
- B33Y40/20—Post-treatment, e.g. curing, coating or polishing
-
- 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
Abstract
The invention discloses a processing method of a thin metal piece based on three-dimensional digital design, which comprises the steps of scanning a thin metal piece prototype through three-dimensional scanning equipment to obtain the three-dimensional overall dimension of a metal artwork prototype, importing the three-dimensional overall dimension of the thin metal piece prototype into a computer client and then processing to obtain a three-dimensional digital model of the thin metal piece, or directly manufacturing and designing through CAD/CAE/CAM modeling software to obtain the three-dimensional digital model of the thin metal piece; and converting the three-dimensional digital model of the thin metal piece to be formed into a laser near-net-shape forming processing path and a metal powder melting and accumulating model through the main controller, and determining the processing speed on the laser near-net-shape forming processing path. The invention provides no method which is better used for processing thin metal parts, particularly can better carry out three-dimensional digital design and achieves better processing and using effects.
Description
Technical Field
The invention relates to a processing method of a thin metal piece based on three-dimensional digital design, and belongs to the technical field of metal part processing.
Background
The three-dimensional digital acquisition technology is a high and new technology for image identification and processing developed in recent years, and acquires image data of the surface of a shot object in a point cloud form by a scanning measurement method, so that space point location information can be acquired rapidly and massively, and three-dimensional image information of the object can be acquired rapidly and accurately. Based on the development of the technology, in recent years, research and application of a series of three-dimensional digital acquisition technologies are also developed in the field of cultural relic archaeology. Due to the fragility and uniqueness of the cultural relics, how to accurately acquire, protect, inherit and display the cultural relics is particularly important. In the prior art, a method for machining a thin metal part does not exist, particularly, three-dimensional digital design cannot be well carried out, and a good machining and using effect cannot be achieved. Therefore, a processing method based on three-dimensional digital design for thin metal parts is urgently needed to solve the problem in the prior art.
In order to solve the technical problems, a new technical scheme is especially provided.
Disclosure of Invention
The invention aims to provide a processing method of a thin metal piece based on three-dimensional digital design, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a processing method of thin metal parts based on three-dimensional digital design comprises the following steps:
scanning a thin metal piece prototype through three-dimensional scanning equipment to obtain the three-dimensional overall dimension of a metal artwork prototype, importing the three-dimensional overall dimension of the thin metal piece prototype into a computer client and then processing to obtain a three-dimensional digital model of the thin metal piece, or directly manufacturing and designing through CAD/CAE/CAM modeling software to obtain the three-dimensional digital model of the thin metal piece;
converting a three-dimensional digital model of the thin metal piece to be molded into a laser near-net-shape processing path and a metal powder melting accumulation model through a main controller, setting a power value of a laser beam emitted by a laser emitting end, a powder feeding rate and a powder feeding air flow of metal powder conveyed to a molding position by a powder feeding cavity in a coaxial powder feeding mode, and determining a processing speed on the laser near-net-shape processing path;
melting metal powder under the irradiation of laser beams to form a metal molten pool, then solidifying the metal molten pool on a forming table to obtain a forming unit in metallurgical bonding, and forming melt accumulation among the metal powder, the metal powder and the solidified metal on a processing path to form formed metal;
step four, circularly heating the thin metal sheet for a half period, then cooling for a half period, and meeting the following conditions:
and fifthly, annealing the thin metal sheet in vacuum at the temperature of below 700 ℃, and then cold-rolling the thin metal sheet into a thin sheet with the thickness of not more than 1 mm.
Preferably, the condition to be satisfied in step four is that the shear stress is 0.05 to 0.1 of the yield point of the thin sheet metal.
Preferably, the temperature of the sheet metal is above the phase transition point during each half cycle of the heating of the sheet metal in step four.
Preferably, during the half cycle of cooling each thin sheet of metal, the temperature of the metallic material being below the transformation point, the thin sheet of metal is placed in a stream of water at a temperature of less than 35 degrees celsius for cooling, the thin sheet of metal being subjected to at least three heating and cooling cycles, each heating and cooling cycle not exceeding 25 seconds.
Compared with the prior art, the invention has the beneficial effects that: the method is better used for processing the thin metal parts, particularly can better perform three-dimensional digital design and achieves better processing and using effects.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a processing method of thin metal parts based on three-dimensional digital design comprises the following steps:
scanning a thin metal piece prototype through three-dimensional scanning equipment to obtain the three-dimensional overall dimension of a metal artwork prototype, importing the three-dimensional overall dimension of the thin metal piece prototype into a computer client and then processing to obtain a three-dimensional digital model of the thin metal piece, or directly manufacturing and designing through CAD/CAE/CAM modeling software to obtain the three-dimensional digital model of the thin metal piece;
converting a three-dimensional digital model of the thin metal piece to be molded into a laser near-net-shape processing path and a metal powder melting accumulation model through a main controller, setting a power value of a laser beam emitted by a laser emitting end, a powder feeding rate and a powder feeding air flow of metal powder conveyed to a molding position by a powder feeding cavity in a coaxial powder feeding mode, and determining a processing speed on the laser near-net-shape processing path;
melting metal powder under the irradiation of laser beams to form a metal molten pool, then solidifying the metal molten pool on a forming table to obtain a forming unit in metallurgical bonding, and forming melt accumulation among the metal powder, the metal powder and the solidified metal on a processing path to form formed metal;
step four, circularly heating the thin metal sheet for a half period, then cooling for a half period, and meeting the following conditions:
and fifthly, annealing the thin metal sheet in vacuum at the temperature of below 700 ℃, and then cold-rolling the thin metal sheet into a thin sheet with the thickness of not more than 1 mm.
Preferably, the condition to be satisfied in step four is that the shear stress is 0.05 to 0.1 of the yield point of the thin sheet metal.
Preferably, the temperature of the sheet metal is above the phase transition point during each half cycle of the heating of the sheet metal in step four.
Preferably, during the half cycle of cooling each thin sheet of metal, the temperature of the metallic material being below the transformation point, the thin sheet of metal is placed in a stream of water at a temperature of less than 35 degrees celsius for cooling, the thin sheet of metal being subjected to at least three heating and cooling cycles, each heating and cooling cycle not exceeding 25 seconds.
When in use, the invention provides a method for machining thin metal parts, and particularly can better perform three-dimensional digital design to achieve better machining and using effects.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A processing method of a thin metal piece based on three-dimensional digital design is characterized by comprising the following steps:
scanning a thin metal piece prototype through three-dimensional scanning equipment to obtain the three-dimensional overall dimension of a metal artwork prototype, importing the three-dimensional overall dimension of the thin metal piece prototype into a computer client and then processing to obtain a three-dimensional digital model of the thin metal piece, or directly manufacturing and designing through CAD/CAE/CAM modeling software to obtain the three-dimensional digital model of the thin metal piece;
converting a three-dimensional digital model of the thin metal piece to be molded into a laser near-net-shape processing path and a metal powder melting accumulation model through a main controller, setting a power value of a laser beam emitted by a laser emitting end, a powder feeding rate and a powder feeding air flow of metal powder conveyed to a molding position by a powder feeding cavity in a coaxial powder feeding mode, and determining a processing speed on the laser near-net-shape processing path;
melting metal powder under the irradiation of laser beams to form a metal molten pool, then solidifying the metal molten pool on a forming table to obtain a forming unit in metallurgical bonding, and forming melt accumulation among the metal powder, the metal powder and the solidified metal on a processing path to form formed metal;
step four, circularly heating the thin metal sheet for a half period, then cooling for a half period, and meeting the following conditions:
and fifthly, annealing the thin metal sheet in vacuum at the temperature of below 700 ℃, and then cold-rolling the thin metal sheet into a thin sheet with the thickness of not more than 1 mm.
2. The thin metal piece machining method based on the three-dimensional digital design according to claim 1, characterized by comprising the following steps of: the fourth step should satisfy the condition that the shear stress is 0.05-0.1 of the yield point of the thin sheet metal.
3. The thin metal piece machining method based on the three-dimensional digital design according to claim 1, characterized by comprising the following steps of: and step four, in each heating half period of the thin metal sheet, the temperature of the thin metal sheet is above the phase change point.
4. The thin metal piece machining method based on the three-dimensional digital design according to claim 1, characterized by comprising the following steps of: during the half cycle of cooling each thin sheet of metal, the temperature of the metallic material being below the transformation point, the thin sheet of metal is placed in a stream of water at a temperature of less than 35 degrees celsius for cooling, the thin sheet of metal is subjected to at least three heating and cooling cycles, each heating and cooling cycle not exceeding 25 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186137.0A CN113000856A (en) | 2021-02-15 | 2021-02-15 | Machining method of thin metal piece based on three-dimensional digital design |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110186137.0A CN113000856A (en) | 2021-02-15 | 2021-02-15 | Machining method of thin metal piece based on three-dimensional digital design |
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| CN113000856A true CN113000856A (en) | 2021-06-22 |
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| CN202110186137.0A Pending CN113000856A (en) | 2021-02-15 | 2021-02-15 | Machining method of thin metal piece based on three-dimensional digital design |
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Citations (9)
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| CN102052342A (en) * | 2009-10-29 | 2011-05-11 | 北京有色金属研究总院 | Titanium alloy integral bladed disc and manufacturing method thereof |
| CN105252001A (en) * | 2015-11-03 | 2016-01-20 | 中国航空工业集团公司北京航空材料研究院 | Laser forming and manufacturing process for titanium alloy blisk blade |
| CN105441655A (en) * | 2015-11-26 | 2016-03-30 | 佛山市高明区杨和金属材料专业镇技术创新中心 | Pressure machining method for metal material piece |
| CN105603168A (en) * | 2015-11-26 | 2016-05-25 | 佛山市高明区杨和金属材料专业镇技术创新中心 | Toughening treatment method for metal material |
| CN106583720A (en) * | 2016-11-28 | 2017-04-26 | 南通金源智能技术有限公司 | 3D printing manufacturing method for aluminum base graphene alloy thin-walled vane |
| CN107206717A (en) * | 2015-02-10 | 2017-09-26 | 大陆轮胎德国有限公司 | Thin slice |
| CN108044122A (en) * | 2017-11-14 | 2018-05-18 | 中国航发北京航空材料研究院 | A kind of preparation method of Nb-Si based alloys hollow turbine vane |
| CN108422793A (en) * | 2018-04-28 | 2018-08-21 | 莱芜职业技术学院 | A kind of 3D printing metal handicrafts manufacture craft |
| CN110238396A (en) * | 2019-06-28 | 2019-09-17 | 北京航天控制仪器研究所 | A kind of metal material colour molding machine and method |
-
2021
- 2021-02-15 CN CN202110186137.0A patent/CN113000856A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052342A (en) * | 2009-10-29 | 2011-05-11 | 北京有色金属研究总院 | Titanium alloy integral bladed disc and manufacturing method thereof |
| CN107206717A (en) * | 2015-02-10 | 2017-09-26 | 大陆轮胎德国有限公司 | Thin slice |
| CN105252001A (en) * | 2015-11-03 | 2016-01-20 | 中国航空工业集团公司北京航空材料研究院 | Laser forming and manufacturing process for titanium alloy blisk blade |
| CN105441655A (en) * | 2015-11-26 | 2016-03-30 | 佛山市高明区杨和金属材料专业镇技术创新中心 | Pressure machining method for metal material piece |
| CN105603168A (en) * | 2015-11-26 | 2016-05-25 | 佛山市高明区杨和金属材料专业镇技术创新中心 | Toughening treatment method for metal material |
| CN106583720A (en) * | 2016-11-28 | 2017-04-26 | 南通金源智能技术有限公司 | 3D printing manufacturing method for aluminum base graphene alloy thin-walled vane |
| CN108044122A (en) * | 2017-11-14 | 2018-05-18 | 中国航发北京航空材料研究院 | A kind of preparation method of Nb-Si based alloys hollow turbine vane |
| CN108422793A (en) * | 2018-04-28 | 2018-08-21 | 莱芜职业技术学院 | A kind of 3D printing metal handicrafts manufacture craft |
| CN110238396A (en) * | 2019-06-28 | 2019-09-17 | 北京航天控制仪器研究所 | A kind of metal material colour molding machine and method |
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Application publication date: 20210622 |