CN103481024A - Molding method for steel part - Google Patents
Molding method for steel part Download PDFInfo
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- CN103481024A CN103481024A CN201310376494.9A CN201310376494A CN103481024A CN 103481024 A CN103481024 A CN 103481024A CN 201310376494 A CN201310376494 A CN 201310376494A CN 103481024 A CN103481024 A CN 103481024A
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- layer
- sheet material
- steel part
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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
Abstract
The invention relates to a molding method for a steel part and belongs to the technical field of machinery machining. The method comprises the steps of firstly layering a steel part to be molded from top to bottom in sequence to obtain the geometric shape of each layer; machining panels by adopting a casting, rolling or extruding machining method, and adopting a high-pressure water, linear cutting or mechanical machining method to machine the panels into corresponding geometric shapes; pickling the machined panels, spot-welding the panel at the bottommost layer onto a substrate, and laminating the second layer of panel on the first layer of panel; and connecting the second layer of panel onto the first layer of panel while the second layer of panel is subjected to the stirring and machining by utilizing a needle-less stirring, machining and connecting method; milling or grinding the outer surfaces of the panels and the inner surfaces of the hollow cavities at the same time; repeating the process until the whole steel part is molded. The molding method for the steel part has low demands on raw materials, and is small and uniform in structure of the manufactured steel part, so the steel part is stable in performance, high in material utilization rate and high in work efficiency.
Description
Technical field
The present invention relates to a kind of manufacturing process of steel part, belong to the Machining Technology field.
Background technology
When preparing hardware, high-strength steel structure for example, in order to prepare high performance part, often need the structural member after casting is carried out to the processing of heat engine tool, the processing such as the heat engine tool such as extruding, forging, rolling, thereby can smash thick original as cast condition crystal grain, make tissue obtain refinement, thereby obtain high performance structural member.But traditional preparation technology carries out the processing of heat engine tool to the prefabricated blank after casting, and generally needs large-scale heat engine tool process equipment, for example, extrusion equipment, forging equipment etc., also exist distortion inhomogeneous for large-sized part heat engine tool processing, causes tissue, the inhomogeneous problem of performance.And adopt traditional manufacturing process, heat engine tool processing technologys such as forging, rolling, extrusion molding can improve structural member tissue and performance, but larger in the difficulty for preparing the structural member that much there is complex appearance and boring structure.
Summary of the invention
The objective of the invention is to propose a kind of manufacturing process of steel part, the some shortcomings that exist during for existing manufacture high-strength steel parts, adopt the processing of heat engine tool to be connected with the needleless stirring and processing method combined, shaping high-performance steel parts, to improve raw-material utilization rate, and increase work efficiency.
The manufacturing process of the steel part that the present invention proposes comprises the following steps:
(1) according to the geometry of steel part, by steel part to be formed layering successively from top to down, the thickness of every layer is 0.3 millimeter～1 millimeter, obtains the geometry of every layer of steel part to be formed;
(2) adopt the processing method of casting, rolling or extruding to process sheet material, the thickness of sheet material is 0.3 millimeter～1 millimeter;
(3) adopt the method for water under high pressure, line cutting or machining, according to the geometry of above-mentioned every layer, respectively sheet material is processed into to corresponding geometry;
(4) respectively the sheet material after processing is carried out to pickling processing, remove oxide skin and the dirt of plate surface;
(5) sheet material of basecoat point is welded on substrate, according to order from bottom to top, second layer sheet metal layer is stacked on ground floor sheet material;
(6) adopt needleless stirring and processing and method of attachment, when second layer sheet material is carried out to stirring and processing, second layer sheet material is connected on ground floor sheet material;
(7) carry out milling or grinding to passing through needleless stirring and processing and the sheet material outer surface of connection and the inner surface of sheet material cavity;
(8) repeat (5)～(7), until the whole steel part that is shaped.
The manufacturing process of the steel part that the present invention proposes, compare with traditional method for preparing steel construction, and the present invention adopts the processing of heat engine tool and the combined method of stirring and processing to prepare steel part, has the following advantages:
1, the steel part manufacturing process that the present invention proposes, the sheet material that raw material can adopt casting, heat engine tool to process, to raw-material require low.
2, the steel part manufacturing process that the present invention proposes, when sheet material is connected, carried out stirring and processing to sheet material, prepares the fine microstructures of steel part and evenly, makes the stable performance of steel part.
The manufacturing process of the steel part that 3, the present invention proposes, according to the profile of steel part, carry out needleless stirring and processing and connection by steel board, and successively near-net-shape goes out steel part, and stock utilization is high, high efficiency.
4, the steel part manufacturing process that the present invention proposes, can be used for preparing the structural member of many materials.
The specific embodiment
The manufacturing process of the steel part that the present invention proposes comprises the following steps:
(1) according to the geometry of steel part, by steel part to be formed layering successively from top to down, the thickness of every layer is 0.3 millimeter～1 millimeter, obtains the geometry of every layer of steel part to be formed;
(2) adopt the processing method of casting, rolling or extruding to process sheet material, the thickness of sheet material is 0.3 millimeter～1 millimeter;
(3) adopt the method for water under high pressure, line cutting or machining, according to the geometry of above-mentioned every layer, respectively sheet material is processed into to corresponding geometry;
(4) respectively the sheet material after processing is carried out to pickling processing, remove oxide skin and the dirt of plate surface;
(5) sheet material of basecoat point is welded on substrate, according to order from bottom to top, second layer sheet metal layer is stacked on ground floor sheet material;
(6) adopt needleless stirring and processing and method of attachment, when second layer sheet material is carried out to stirring and processing, second layer sheet material is connected on ground floor sheet material; In order to realize better the connection between two-layer sheet material, can before carrying out stirring and processing and being connected, carry out preheating, the mode of preheating can be electron beam heating, eddy-current heating, the modes such as resistance heated;
(7) carry out milling or grinding to passing through needleless stirring and processing and the sheet material outer surface of connection and the inner surface of sheet material cavity;
(8) repeat (5)～(7), until the whole steel part that is shaped.
Manufacturing process of the present invention when preparing the steel part of oxidizable material, can carry out the processing of heat engine tool to blank, in case oxidation under vacuum condition or argon shield.
In manufacturing process of the present invention, can adopt the method for stirring and processing and connection, also can adopt high temperature insostatic pressing (HIP) to realize the method that diffusion connects.
Below introduce the embodiment of the inventive method:
Embodiment 1:
(1) according to the geometry of steel part, by steel part to be formed layering successively from top to down, the thickness of every layer is 0.3 millimeter～1 millimeter, obtains the geometry of every layer of steel part to be formed;
(2) adopt the processing method of casting, rolling or extruding to process sheet material, the thickness of sheet material is 0.3 millimeter～1 millimeter;
(3) adopt the method for water under high pressure, line cutting or machining, according to the geometry of above-mentioned every layer, respectively sheet material is processed into to corresponding geometry;
(4) respectively the sheet material after processing is carried out to pickling processing, remove oxide skin and the dirt of plate surface, the pickle composition is: hydrochloric acid, water, and the concentration of volume percent of hydrochloric acid is: 10%, pickling time is 6 minutes, pickling temperature is 45 ℃;
(5) sheet material of basecoat point is welded on substrate, according to order from bottom to top, second layer sheet metal layer is stacked on ground floor sheet material;
(6) adopt needleless stirring and processing and method of attachment, when second layer sheet material is carried out to stirring and processing, second layer sheet material is connected on ground floor sheet material.The velocity of rotation of stirring-head is: 500 rev/mins, the speed of related movement of stirring-head and substrate is 0.4 mm/second.Stirring-head is of a size of: shaft shoulder diameter is 8mm.In order to realize better between two-layer sheet material, in the next position of stirring-head processing, carry out preheating before carrying out stirring and processing and being connected, the mode of preheating is eddy-current heating, preheat temperature is 600 ℃;
(7) carry out milling or grinding to passing through needleless stirring and processing and the sheet material outer surface of connection and the inner surface of sheet material cavity;
(8) repeat (5)～(7), until the whole steel part that successively is shaped.
Embodiment 2:
(1) according to the geometry thickness of steel part, it is carried out to layering, determine the geometry of every layer, the thickness of every layer is 0.3mm;
(2) adopt the method for rolling to process steel board, titanium sheet material, the thickness of sheet material is 0.3mm;
(3) adopt the method for water under high pressure cutting, sheet material is processed into according to the geometry of every layer after layering;
(4) steel board and titanium sheet material after processing are carried out to pickling processing, remove surperficial oxide skin and dirt, the pickle composition is: hydrochloric acid, water, and the concentration of volume percent of hydrochloric acid is: 10%, pickling time is 8 minutes, pickling temperature is 45 ℃;
(5) ground floor steel board point is welded on substrate, according to order from bottom to top, second layer titanium sheet metal layer is stacked on ground floor sheet material;
(6) adopt the method for needleless stirring and processing and connection, when second layer sheet material is carried out to stirring and processing, second layer titanium sheet material is connected on the ground floor steel board.The velocity of rotation of stirring-head is: 500 rev/mins, the speed of related movement of stirring-head and substrate is 0.4 mm/second.Stirring-head is of a size of: shaft shoulder diameter is 8mm;
(7) adopt the method for digital control processing to be processed the outer surface of the sheet material through needleless stirring and processing and connection and the inner surface of cavity part, the method for digital control processing is Milling Process;
(8) repeat (5)～(7), until the parts of the whole steel/titanium composite material that successively is shaped.
Embodiment 3:
(1) according to the geometry of steel part, according to certain thickness, it is carried out to layering, thereby determine the geometry of every layer, the thickness of every layer is 1.0mm;
(2) adopt the method for casting to process an ingot casting, adopt the method for line cutting that ingot casting is cut into to the sheet material that thickness is 1mm;
(3) adopt the method for line cutting, sheet material is processed into according to the geometry of every layer after layering;
(4) sheet material after processing is carried out to pickling processing, remove surperficial oxide skin and dirt, the pickle composition is: hydrochloric acid, water, and the concentration of volume percent of hydrochloric acid is: 10%, pickling time is 6 minutes, pickling temperature is 55 ℃;
(5) ground floor sheet material point is welded on substrate, according to order from bottom to top, second layer sheet metal layer is stacked on ground floor sheet material;
(6) adopt the method for needleless stirring and processing and connection, when second layer sheet material is carried out to stirring and processing, second layer sheet material is connected on ground floor sheet material.In order to realize better between two-layer sheet material, in the next position of stirring-head processing, carry out preheating before carrying out stirring and processing and being connected, the mode of preheating is eddy-current heating, preheat temperature is 400 ℃.The velocity of rotation of stirring-head is: 800 rev/mins, the speed of related movement of stirring-head and substrate is 0.8 mm/second.Stirring-head is of a size of: shaft shoulder diameter is 8mm;
(7) adopt the method for digital control processing to be processed the outer surface of the sheet material through needleless stirring and processing and connection and the inner surface of cavity part, the method for digital control processing is Milling Process;
(8) repeat (5)～(7), until the whole steel part that successively is shaped.
Embodiment 4:
(1) according to the geometry of steel part, according to certain thickness, it is carried out to layering, thereby determine the geometry of every layer, the thickness of every layer is 1.0mm;
(2) adopt the method processing tapping fillet of rolling, be of a size of: 20mm * 5mm * 1mm;
(3) the steel fillet after processing is carried out to pickling processing, remove surperficial oxide skin and dirt, the pickle composition is: hydrochloric acid, water, and the concentration of volume percent of hydrochloric acid is: 10%, pickling time is 8 minutes, pickling temperature is 55 ℃;
(4) according to the track of setting, steel fillet paving is layed onto on steel substrate, carry out eddy-current heating to just spreading the steel fillet covered, be preheating to 800 ℃;
(5) the steel fillet after adopting the needleless stirring-head to heating carries out stirring and processing and connection, realizes being connected of steel fillet and substrate, until spread covered with one deck according to the shape of every layer after layering.Wherein the velocity of rotation of stirring-head is: 700 rev/mins, the speed of related movement of stirring-head and substrate is 0.6 mm/second.Stirring-head is of a size of: shaft shoulder diameter is 8mm;
(6) according to the geometry of every layer after layering, adopt the method for digital control processing to be processed just spreading the one deck covered, particularly the profile of every layer and the inner surface of cavity part are carried out to grinding;
(7) repeat (4)～(6), until the steel part that successively is shaped;
Embodiment 5:
(1) adopt the method for rolling to process steel board, the thickness of steel board is 0.3mm;
(2) sheet material after processing is carried out to pickling processing, remove surperficial oxide skin and dirt, the pickle composition is: hydrochloric acid, water, and the concentration of volume percent of hydrochloric acid is: 10%, pickling time is 12 minutes, pickling temperature is 55 ℃;
(3) on the surface of steel plate, do not need the position of connection to apply only weldering-blowing agent, its main component is: acetone, ethyl acetate, yttria, titantium hydride, percent by volume is: 70%:16%:7%:7%.The position connected at needs does not apply only solder flux;
(4) applied the only steel plate lamination of weldering-blowing agent by 10 layers, outermost coat again two layers of thickness be 0.5mm do not apply solder flux only steel plate as panel, then carry out the edge sealing weldering, and reserve a venthole, make weld back pocket in be interlinked to the outside;
(5) pocket of edge sealing weldering is put in vacuum drying oven and carried out vacuum degassing, technological parameter is: 300 ℃, and insulation 4h;
(6), under vacuum condition, adopt the mode of electron beam welding to carry out soldering and sealing to the venthole on pocket;
(7) pocket after soldering and sealing is put in heating furnace, be heated to 300 ℃, be incubated 0.5 hour;
(8) pocket taken out from heating furnace is rolled at once, every time amount of rolling is respectively: 0.8mm, 0.6mm, 0.4mm, 0.2mm;
(9) prefabricated blank after rolling is put in shaping dies, wherein the mould cavity is shaped as cuboid, and it is highly 20mm, and the length and width size is determined as required, and mould and prefabricated blank are put into to heating furnace simultaneously, is warming up to 500 ℃, is incubated 4 hours;
(10) take out mould and prefabricated blank from heating furnace, to prefabricated blank, adopt water under high pressure to be cut, obtain the steel construction with porous.
Claims (1)
1. the manufacturing process of a steel part is characterized in that this manufacturing process comprises the following steps:
(1) according to the geometry of steel part, by steel part to be formed layering successively from top to down, the thickness of every layer is 0.3 millimeter～1 millimeter, obtains the geometry of every layer of steel part to be formed;
(2) adopt the processing method of casting, rolling or extruding to process sheet material, the thickness of sheet material is 0.3 millimeter～1 millimeter;
(3) adopt the method for water under high pressure, line cutting or machining, according to the geometry of above-mentioned every layer, respectively sheet material is processed into to corresponding geometry;
(4) respectively the sheet material after processing is carried out to pickling processing, remove oxide skin and the dirt of plate surface;
(5) sheet material of basecoat point is welded on substrate, according to order from bottom to top, second layer sheet metal layer is stacked on ground floor sheet material;
(6) adopt needleless stirring and processing and method of attachment, when second layer sheet material is carried out to stirring and processing, second layer sheet material is connected on ground floor sheet material;
(7) carry out milling or grinding to passing through needleless stirring and processing and the sheet material outer surface of connection and the inner surface of sheet material cavity;
(8) repeat (5)～(7), until the whole steel part that successively is shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376494.9A CN103481024A (en) | 2013-08-26 | 2013-08-26 | Molding method for steel part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310376494.9A CN103481024A (en) | 2013-08-26 | 2013-08-26 | Molding method for steel part |
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| CN103481024A true CN103481024A (en) | 2014-01-01 |
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| CN201310376494.9A Pending CN103481024A (en) | 2013-08-26 | 2013-08-26 | Molding method for steel part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792507A (en) * | 2021-01-04 | 2021-05-14 | 中国航空制造技术研究院 | Preparation method of titanium alloy blisk |
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| US5031483A (en) * | 1989-10-06 | 1991-07-16 | W. R. Weaver Co. | Process for the manufacture of laminated tooling |
| CN1107090A (en) * | 1993-07-13 | 1995-08-23 | 李源明 | Die making method |
| JPH09220639A (en) * | 1996-02-15 | 1997-08-26 | Toyota Motor Corp | Manufacture of laminated metallic mold |
| US20060138197A1 (en) * | 2003-06-12 | 2006-06-29 | Kinya Aota | Friction stirring-welding method |
| US20090291322A1 (en) * | 2008-05-26 | 2009-11-26 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Joined body and process for manufacturing the same |
| CN102303220A (en) * | 2011-08-03 | 2012-01-04 | 孝感学院 | Manufacturing method of arc plate blade forming die of ventilation fan |
| CN102581551A (en) * | 2011-12-31 | 2012-07-18 | 重庆明珠机电有限公司 | Method for forming workpieces with deep-hole spiral special-shaped curved surfaces |
-
2013
- 2013-08-26 CN CN201310376494.9A patent/CN103481024A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031483A (en) * | 1989-10-06 | 1991-07-16 | W. R. Weaver Co. | Process for the manufacture of laminated tooling |
| CN1107090A (en) * | 1993-07-13 | 1995-08-23 | 李源明 | Die making method |
| JPH09220639A (en) * | 1996-02-15 | 1997-08-26 | Toyota Motor Corp | Manufacture of laminated metallic mold |
| US20060138197A1 (en) * | 2003-06-12 | 2006-06-29 | Kinya Aota | Friction stirring-welding method |
| US20090291322A1 (en) * | 2008-05-26 | 2009-11-26 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Joined body and process for manufacturing the same |
| CN102303220A (en) * | 2011-08-03 | 2012-01-04 | 孝感学院 | Manufacturing method of arc plate blade forming die of ventilation fan |
| CN102581551A (en) * | 2011-12-31 | 2012-07-18 | 重庆明珠机电有限公司 | Method for forming workpieces with deep-hole spiral special-shaped curved surfaces |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792507A (en) * | 2021-01-04 | 2021-05-14 | 中国航空制造技术研究院 | Preparation method of titanium alloy blisk |
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Application publication date: 20140101 |
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