CN119347345A - Manufacturing method of medium and large molds based on multi-layer laser cutting and wire feeding welding - Google Patents
Manufacturing method of medium and large molds based on multi-layer laser cutting and wire feeding welding Download PDFInfo
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- CN119347345A CN119347345A CN202411507162.4A CN202411507162A CN119347345A CN 119347345 A CN119347345 A CN 119347345A CN 202411507162 A CN202411507162 A CN 202411507162A CN 119347345 A CN119347345 A CN 119347345A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
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- 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
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Abstract
The invention discloses a manufacturing method of a medium-large die based on multilayer laser cutting and wire feeding welding, which comprises the following steps of A1, three-dimensional modeling and multilayer slicing, A2, laser cutting, A3, interlayer positioning and preliminary assembly, A4, wire feeding welding filling, A5, TIG argon arc welding treatment, A6, final milling and finish machining, A7 and surface treatment. Through the combined use of wire feeding welding and TIG argon arc welding, the concave part between layers is effectively filled, and the concave-convex phenomenon generated after the superposition of the multi-layer slices is eliminated. This ensures flatness of the mold surface, greatly improving accuracy and surface quality of the mold. Wire feeding welding not only fills the gaps between layers, but also enhances the bonding strength between sheets. Ensures that the die can bear larger mechanical stress in the use process and is not easy to generate layering or cracking.
Description
Technical Field
The invention relates to the technical field of die processing, in particular to a method for manufacturing a medium-large die based on multilayer laser cutting and wire feeding welding.
Background
Mold fabrication plays a critical role in the modern industry, particularly as an indispensable tool in mass production and high-precision manufacturing. The traditional medium and large die manufacturing process mainly depends on mechanical processing methods such as numerical control turning, milling and the like. These methods process a large block of metal material into a desired mold shape through machining processes such as cutting, milling, drilling, and the like. Although these processes are economical in mass production, conventional processing methods present limitations in the production of small-volume molds that are subject to complex structures and high precision requirements.
First, the material utilization in conventional processing methods is low. Since the turning and milling process requires the gradual removal of excess parts from the bulk raw material, a large amount of material is cut into scrap, increasing material costs and having a certain impact on the environment. In addition, the complex-shaped die needs to be clamped and repositioned for many times, so that the processing time is prolonged, the accumulation of processing errors is easy to cause, and the final precision of the die is affected. In this case, the mold may be rugged during assembly, further affecting the performance of the mold.
Secondly, in the conventional process, the mold is easily deformed during the process due to the cutting force and the heat influence, and particularly in the manufacture of large-sized and complex-structured molds, the geometric accuracy of the mold is directly affected by such deformation, thereby reducing the quality of the final product. To overcome these problems, the industry is continually exploring new processes and techniques to improve the accuracy of mold fabrication, reduce material wastage, and shorten production cycles.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of Invention
The invention aims to solve the technical problem of providing a manufacturing method of a medium-large die based on multi-layer laser cutting and wire feeding welding aiming at the defects of the prior art.
The technical scheme of the invention is as follows:
A manufacturing method of a medium-large die based on multilayer laser cutting and wire feeding welding comprises the following steps:
A1, three-dimensional modeling and multi-layer slicing, namely firstly, carrying out three-dimensional modeling on a die, and slicing the three-dimensional model into a plurality of thin layers by using slicing software;
a2, cutting the metal sheet by using laser cutting equipment, and precisely cutting out the two-dimensional contour of each layer according to a pre-designed slicing drawing;
a3, interlayer positioning and preliminary assembly, namely after cutting is completed, the sheet layer is subjected to preliminary assembly through the positioning holes and the positioning pins;
A4, wire feeding, welding and filling, namely filling the concave parts between the layers through a wire feeding welding process after the sheet layers are initially assembled;
a5, performing TIG argon arc welding treatment, namely after wire feeding, welding and filling are completed, melting the convex angle of the die by using a TIG argon arc welding technology;
a6, final milling and finishing, namely placing the whole die on a high-precision machine tool for milling after welding;
and A7, surface treatment, namely treating the surface of the welded mould according to the use environment and the requirements of the mould.
In the manufacturing method of the medium-large die, in the step A1, the outline of each thin layer is in a two-dimensional closed shape, the thickness of the thin layer is adjusted according to the complexity degree and the strength requirement of the die, and in the slicing process, a designer needs to consider the joint between layers and reserve a space for subsequent welding.
In the manufacturing method of the medium-large die, in the step A2, the shape and the size of each thin layer are ensured to meet the design requirements by laser cutting, and positioning holes are reserved during cutting so as to ensure the alignment precision in the subsequent assembly process.
In the method for manufacturing the medium and large die, in the step A3, the manufacturing process is carried out on a special assembly table or fixture.
In the manufacturing method of the medium-large die, in the step A4, wire feeding welding can accurately fill gaps among the sheets, the phenomenon of concave-convex layers caused by multi-layer superposition is eliminated, and the compatibility of the welding materials with the sheet materials is considered, so that the welding strength and the stability of the whole structure are ensured.
In the method for manufacturing the medium-large die, in the step A6, additional surface treatment such as polishing or coating can be performed to further improve the performance of the die.
The manufacturing method of the medium-large die in the step A7 comprises polishing, electroplating and coating treatment, so that the wear resistance and corrosion resistance of the die are improved, and the service life of the die is prolonged.
By adopting the scheme, the invention provides a medium and large die manufacturing method based on multilayer laser cutting and wire feeding welding. By combining a multilayer laser cutting technology, a precise wire feeding welding technology and a TIG argon arc welding technology, the concave-convex layer phenomenon of the die can be effectively eliminated, and the high precision and the high strength of the die are ensured.
Drawings
FIG. 1 is a schematic illustration of wire feed weld fill;
FIG. 2 is a schematic diagram of a TIG argon arc welding process;
FIG. 3 is a schematic view of milling and finishing;
1 die slicing, 2 positioning holes, 3 wire feeding welding parts, 4TIG argon arc welding melting parts, 5 milling parts and 6 die final section lines;
Detailed Description
The present invention will be described in detail with reference to specific examples.
The embodiment provides a manufacturing method of a medium-large die based on multilayer laser cutting and wire feeding welding, which specifically comprises the following steps:
A1. three-dimensional modeling and multi-layer slicing, firstly, three-dimensional modeling is carried out on a die, and slicing software is used for slicing the three-dimensional die into a plurality of thin layers. The outline of each thin layer is a two-dimensional closed shape, and the thickness of the thin layers can be adjusted according to the complexity and strength requirements of the die. In the slicing process, a designer needs to consider the bonding part between layers and reserve a space for subsequent welding.
A2. And (3) laser cutting, namely cutting the metal sheet by using laser cutting equipment, and precisely cutting out the two-dimensional contour of each layer according to a pre-designed slicing drawing. The high precision nature of laser cutting ensures that the shape and size of each lamina meets design requirements. Meanwhile, a positioning hole is reserved in cutting, so that alignment accuracy in the subsequent assembly process is ensured.
A3. And (3) interlayer positioning and preliminary assembly, namely after cutting, performing preliminary assembly on the sheet layer through the positioning holes and the positioning pins. This step ensures accurate alignment between the layers of the sheet, avoiding interlayer misalignment. This process may be performed on a dedicated assembly table or fixture to further improve positioning accuracy.
A4. Wire feed weld filling (fig. 1) after the preliminary assembly of the lamina layers, the depressions between the layers are filled by a wire feed weld process. Wire feeding welding can accurately fill gaps among sheets, and the phenomenon of concave-convex layers caused by multilayer superposition is eliminated. The weld material is selected in view of its compatibility with the sheet material to ensure weld strength and overall structural stability.
And A5.TIG argon arc welding treatment (figure 2), wherein after wire feeding welding filling is completed, a convex angle of the die is melted by using a TIG argon arc welding technology.
A6. Final milling and finishing (fig. 3) after the welding is completed, the whole die is placed on a high-precision machine tool for milling treatment. This step not only removes the small deformations that may occur during the welding process, but also ensures that the final geometry of the mould meets the design requirements. For special-purpose molds, additional surface treatments, such as polishing or coating, may also be performed to further enhance the performance of the mold.
A7. Surface treatment, namely treating the surface of the die after welding according to the use environment and requirements of the die, including but not limited to polishing, electroplating and coating treatment. These treatment steps can improve the wear resistance, corrosion resistance, and extend the service life of the mold.
The process flow optimizes a plurality of working procedures in the traditional die manufacturing, reduces the time of repeated clamping and processing, and obviously shortens the production period. Particularly, for the die with complex shape and high precision requirements, the invention can quickly respond to design change and production requirements.
The method is suitable for manufacturing moulds with various complex shapes, and can flexibly cope with different design requirements. The present invention can provide a reliable solution, both in complex geometries and in high strength mold requirements.
The laser cutting technology greatly improves the utilization rate of materials. By cutting into a plurality of thin layers, the waste of materials is minimized, and the characteristic is particularly important especially in small-batch production, and the production cost is remarkably reduced.
The combination of the multi-layer laser cutting and the precise welding technology leads the processing precision of the die to be obviously improved. By reasonable positioning design and high-precision processing equipment, accurate alignment of each layer of thin sheet is ensured, and the problem of accumulated processing errors possibly occurring in the traditional method is avoided.
Through the combined use of wire feeding welding and TIG argon arc welding, the concave part between layers is effectively filled, and the concave-convex phenomenon generated after the superposition of the multi-layer slices is eliminated. This ensures flatness of the mold surface, greatly improving accuracy and surface quality of the mold. Wire feeding welding not only fills the gaps between layers, but also enhances the bonding strength between sheets. Ensures that the die can bear larger mechanical stress in the use process and is not easy to generate layering or cracking.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (7)
1. The manufacturing method of the medium-large die based on multilayer laser cutting and wire feeding welding is characterized by comprising the following steps of:
A1, three-dimensional modeling and multi-layer slicing, namely firstly, carrying out three-dimensional modeling on a die, and slicing the three-dimensional model into a plurality of thin layers by using slicing software;
a2, cutting the metal sheet by using laser cutting equipment, and precisely cutting out the two-dimensional contour of each layer according to a pre-designed slicing drawing;
a3, interlayer positioning and preliminary assembly, namely after cutting is completed, the sheet layer is subjected to preliminary assembly through the positioning holes and the positioning pins;
A4, wire feeding, welding and filling, namely filling the concave parts between the layers through a wire feeding welding process after the sheet layers are initially assembled;
a5, performing TIG argon arc welding treatment, namely after wire feeding, welding and filling are completed, melting the convex angle of the die by using a TIG argon arc welding technology;
a6, final milling and finishing, namely placing the whole die on a high-precision machine tool for milling after welding;
and A7, surface treatment, namely treating the surface of the welded mould according to the use environment and the requirements of the mould.
2. The method of manufacturing a large and medium sized mold according to claim 1, wherein in the step A1, each thin layer has a two-dimensional closed shape, the thickness of the thin layer is adjusted according to the complexity and strength of the mold, and the designer needs to consider the bonding portion between the layers and reserve a space for the subsequent welding during the slicing process.
3. The method of manufacturing a medium and large mold according to claim 1, wherein in the step A2, the laser cutting ensures that the shape and size of each thin layer meet the design requirements, and the positioning holes are reserved during the cutting to ensure the alignment accuracy in the subsequent assembly process.
4. The method of manufacturing a medium-large mold according to claim 1, wherein in step A3, the step is performed on a dedicated assembly table or jig.
5. The method of manufacturing a medium-and large-sized die according to claim 1, wherein in the step A4, wire feed welding is capable of precisely filling the gaps between the sheets and eliminating the uneven layer phenomenon caused by the multi-layer superposition, and the welding material is selected in consideration of compatibility with the sheet material to ensure the welding strength and the stability of the overall structure.
6. The method of manufacturing a medium and large mold according to claim 1, wherein in step A6, additional surface treatment including polishing or coating is further performed.
7. The method of manufacturing a medium-large mold according to claim 1, wherein in step A7, including but not limited to polishing, electroplating and coating processes, the wear resistance and corrosion resistance of the mold are improved and the service life of the mold is prolonged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411507162.4A CN119347345A (en) | 2024-10-28 | 2024-10-28 | Manufacturing method of medium and large molds based on multi-layer laser cutting and wire feeding welding |
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| CN202411507162.4A CN119347345A (en) | 2024-10-28 | 2024-10-28 | Manufacturing method of medium and large molds based on multi-layer laser cutting and wire feeding welding |
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| CN119347345A true CN119347345A (en) | 2025-01-24 |
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| RU2110383C1 (en) * | 1997-03-31 | 1998-05-10 | Научно-производственное объединение энергетического машиностроения им.акад.В.П.Глушко | Method for producing braze-welded structures |
| JP3101271B1 (en) * | 2000-04-18 | 2000-10-23 | 株式会社細川製作所 | Manufacturing method of laminated mold using thick metal plate |
| JP2003053544A (en) * | 2001-08-07 | 2003-02-26 | Babcock Hitachi Kk | Tig welding method for fillet joint using galvanized steel sheet |
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| CN200970664Y (en) * | 2006-03-01 | 2007-11-07 | 邢洁 | Automatic wire feeder for TIG welding |
| CN107457404A (en) * | 2017-08-02 | 2017-12-12 | 华中科技大学 | A kind of increasing material suitable for complicated part and mould shapes method |
| CN110539079A (en) * | 2019-09-29 | 2019-12-06 | 华南理工大学 | additive manufacturing equipment and method based on plasma beam-laser composite heat source |
| JP2019217517A (en) * | 2018-06-18 | 2019-12-26 | 株式会社神戸製鋼所 | Manufacturing method of laminated molding, and inspection method of laminated molding |
| CN116000457A (en) * | 2022-12-06 | 2023-04-25 | 哈尔滨焊接研究院有限公司 | Laser coaxial-induction multi-TIG electric arc multi-wire rapid additive manufacturing method and manufacturing system |
| CN117564471A (en) * | 2023-11-27 | 2024-02-20 | 大连理工大学 | A method and system for additive manufacturing of laser-induced TIG arc for magnesium alloy structural parts |
-
2024
- 2024-10-28 CN CN202411507162.4A patent/CN119347345A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2110383C1 (en) * | 1997-03-31 | 1998-05-10 | Научно-производственное объединение энергетического машиностроения им.акад.В.П.Глушко | Method for producing braze-welded structures |
| JP3101271B1 (en) * | 2000-04-18 | 2000-10-23 | 株式会社細川製作所 | Manufacturing method of laminated mold using thick metal plate |
| JP2003053544A (en) * | 2001-08-07 | 2003-02-26 | Babcock Hitachi Kk | Tig welding method for fillet joint using galvanized steel sheet |
| CN1792513A (en) * | 2005-12-28 | 2006-06-28 | 华中科技大学 | Method for mouldless directly mfg. of parts and mould |
| CN200970664Y (en) * | 2006-03-01 | 2007-11-07 | 邢洁 | Automatic wire feeder for TIG welding |
| CN107457404A (en) * | 2017-08-02 | 2017-12-12 | 华中科技大学 | A kind of increasing material suitable for complicated part and mould shapes method |
| JP2019217517A (en) * | 2018-06-18 | 2019-12-26 | 株式会社神戸製鋼所 | Manufacturing method of laminated molding, and inspection method of laminated molding |
| CN110539079A (en) * | 2019-09-29 | 2019-12-06 | 华南理工大学 | additive manufacturing equipment and method based on plasma beam-laser composite heat source |
| CN116000457A (en) * | 2022-12-06 | 2023-04-25 | 哈尔滨焊接研究院有限公司 | Laser coaxial-induction multi-TIG electric arc multi-wire rapid additive manufacturing method and manufacturing system |
| CN117564471A (en) * | 2023-11-27 | 2024-02-20 | 大连理工大学 | A method and system for additive manufacturing of laser-induced TIG arc for magnesium alloy structural parts |
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