CN111069531A - Wax mould tree manufacturing method - Google Patents
Wax mould tree manufacturing method Download PDFInfo
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- CN111069531A CN111069531A CN202010011047.3A CN202010011047A CN111069531A CN 111069531 A CN111069531 A CN 111069531A CN 202010011047 A CN202010011047 A CN 202010011047A CN 111069531 A CN111069531 A CN 111069531A
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- China
- Prior art keywords
- wax
- metal
- mold
- printing
- trimming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention belongs to the technical field of investment casting, and particularly relates to a wax pattern tree manufacturing method which comprises the following steps: the method comprises the steps of metal 3D printing mold making, wax material preparation, wax injection, wax mold trimming and inspection. The invention fully utilizes the advantages of metal 3D printing, namely high precision and capability of producing odd-shaped non-standard parts, utilizes the metal 3D printing to manufacture the wax pattern tree-shaped mould, then injects wax into the mould, and obtains the integrally formed wax pattern tree after mould trimming. Compared with the prior art, the split wax pattern welding and combining process is omitted, the working efficiency is greatly improved, the working environment is improved, and the size precision of the wax pattern tree is improved.
Description
Technical Field
The invention belongs to the technical field of investment casting, and particularly relates to a wax pattern tree manufacturing method.
Background
In the investment casting production process, the split wax pattern combination splicing mode is applied more generally, namely more than two split dies are welded into an integral wax pattern. The existing tool for welding the wax pattern trees is a knife-shaped iron sheet, the iron sheet is placed on an electric furnace to be heated and then welded, the welding surface of the iron sheet is small, the welding time is long, the working efficiency is low, wax can be remained on the iron sheet in the repeated heating process of the iron sheet, the heating process can cause smoke, even the risk of fire, the operation is inconvenient, the efficiency is low, and the adverse effect is caused to the working environment; meanwhile, residual wax liquid drops in the welding process are inconvenient to clean on the ground, influence the environmental sanitation and cause waste.
Disclosure of Invention
Aiming at the problems, the invention provides a wax model tree manufacturing method.
In order to achieve the purpose, the invention adopts the technical scheme that: a wax pattern tree manufacturing method comprises the following steps: metal 3D printing mold making, wax material preparation, wax injection, wax mold trimming and inspection; the metal 3D printing mold is manufactured by applying metal powder to a metal 3D printer.
Preferably, the metal powder is one of steel powder, aluminum alloy powder, copper alloy powder and titanium alloy powder, and has a size of less than 1 mm.
Preferably, the metal 3D printing mold is formed by decomposing the wax pattern tree structure into two parts, printing the two parts separately, and then combining the two parts before the wax injection step.
Preferably, the wax material preparation is that the crushed new wax particles or clean waste wax are completely melted and then are subjected to heat preservation within the range of 90-110 ℃, then the liquid wax is added into a heat preservation cylinder, the heat preservation temperature is 50-60 ℃, the heat preservation time is not less than 12 hours, and the wax can be used for standby after the temperature of the wax in the cylinder is uniform.
Preferably, the wax injection is performed by injecting wax into the mold through a wax injection hole of the mold by using a wax injection machine.
Preferably, the wax trimming mold is used for trimming flash, burr and chamfered defects on the wax trimming mold by using a tool.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention fully utilizes the advantages of metal 3D printing, namely high precision and capability of producing odd-shaped non-standard parts, utilizes the metal 3D printing to manufacture the wax pattern tree-shaped mould, then injects wax into the mould, and obtains the integrally formed wax pattern tree after mould trimming. Compared with the prior art, the split wax pattern welding and combining process is omitted, the working efficiency is greatly improved, the working environment is improved, and the size precision of the wax pattern tree is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below, and fig. 1 is a combined 3D printing steel mold provided in embodiment 1.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Example 1
A wax pattern tree manufacturing method comprises the following steps: : the method comprises the steps of metal 3D printing mold making, wax material preparation, wax injection, wax mold trimming and inspection.
(1) Metal 3D prints system mould
Three-dimensional data of a mold (after a wax pattern tree is decomposed into two parts) to be printed is obtained through a scanner or computer drawing software, then the data is led into a 3D printer, layering processing is carried out through special software, two-dimensional graphic data are formed each time, then line scanning or point printing path planning and automatic changing are carried out through the special software according to the two-dimensional graphic data of each layer, numerical control G code forming identified by the printer is formed, then the printer starts the programs, and point-by-point line-by-line face-by-face printing is carried out until the forming of a real object is completed.
The metal 3D printer is an HAGE industrial grade 3D printer, the metal powder is plain carbon steel metal powder, and the shape of a die cavity is the same as that of two symmetrical parts obtained by longitudinal decomposition of the wax pattern tree.
(2) Wax preparation
Selecting wax for investment casting, namely adding polyethylene hardened paraffin wax, completely melting broken new wax particles or clean waste wax, and then preserving heat for later use at the temperature of 90-110 ℃; and next, adding the liquid wax into a heat preservation cylinder, preserving the heat at 50-60 ℃ for not less than 12h, and standing for later use when the temperature of the wax in the cylinder is uniform.
(3) Wax injection
Selecting a four-column double-port oil pressure type wax injection machine as a wax injection machine, properly coating a release agent before wax injection, and checking whether each part on the combined steel mould is in place, whether fastening is reliable or not and whether dirt exists in a cavity or not; and adjusting the wax injection nozzle to be aligned with the wax injection hole of the mould, and starting the wax injection operation.
(4) Wax trimming die
When the wax mold is taken, the actions of both hands need to be coordinated and light, and a compressed air gun is fully utilized to help demolding when necessary, so that damage or deformation is prevented. And (4) taking out the wax mould, and then carrying out self-inspection, and repairing the defects on the wax mould by using tools such as a mould repairing cutter, an electric soldering iron, an electric hot plate and the like if the defects such as flash, burr, chamfered edge and the like are found.
(5) Examination of
And demolding the wax pattern, carrying out self-inspection, transferring to an inspection link, carrying out 100% appearance inspection on all the wax patterns, carrying out selective inspection on important sizes, and making a complete inspection record of the wax patterns.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the above-mentioned technical details to other fields by using the equivalent embodiments with equivalent changes or modifications, but any simple modification and equivalent changes made to the above embodiments according to the technical spirit of the present invention may still fall within the protection scope of the technical solution of the present invention.
Claims (6)
1. A wax pattern tree manufacturing method is characterized by comprising the following steps: metal 3D printing mold making, wax material preparation, wax injection, wax mold trimming and inspection; the metal 3D printing mold is manufactured by applying metal powder to a metal 3D printer.
2. The method as claimed in claim 1, wherein the metal powder is one of steel powder, aluminum alloy powder, copper alloy powder and titanium alloy powder and has a size less than 1 mm.
3. The method as claimed in claim 1, wherein the metal 3D printing mold is formed by dividing the wax pattern tree structure into two parts, printing the two parts separately, and combining the two parts before the wax injection step.
4. The method for making the wax pattern tree according to claim 1, wherein the wax material is prepared by melting all the new crushed wax particles or the clean waste wax, then preserving heat at 90-110 ℃, then adding the liquid wax into a heat preservation cylinder, preserving heat at 50-60 ℃ for not less than 12 hours, and standing for later use when the temperature of the wax in the cylinder is uniform.
5. The method as claimed in claim 1, wherein the wax injection is performed by injecting wax into the mold through the wax injection hole of the mold by a wax injection machine.
6. The method as claimed in claim 1, wherein the trimming of the wax pattern is performed by trimming flash, burr and chamfered edge on the wax pattern with a tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011047.3A CN111069531A (en) | 2020-01-06 | 2020-01-06 | Wax mould tree manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011047.3A CN111069531A (en) | 2020-01-06 | 2020-01-06 | Wax mould tree manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111069531A true CN111069531A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010011047.3A Pending CN111069531A (en) | 2020-01-06 | 2020-01-06 | Wax mould tree manufacturing method |
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| Country | Link |
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| CN (1) | CN111069531A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589045A (en) * | 2020-11-17 | 2021-04-02 | 连云港源钰金属制品有限公司 | Preparation method of casting die |
| KR102464566B1 (en) * | 2022-08-01 | 2022-11-09 | (주)효진오토테크 | Reactor manufacturing method improvement system |
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| CN102836963A (en) * | 2012-09-09 | 2012-12-26 | 安徽厚林精密金属科技有限公司 | Support casting process |
| CN103801696A (en) * | 2014-02-11 | 2014-05-21 | 北京科技大学 | Method for preparing powder metallurgy complex shape part by using 3D printing mold |
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| CN206663808U (en) * | 2017-04-10 | 2017-11-24 | 重庆科创职业学院 | For implementing the device of 3D printing casting technique |
| CN108247053A (en) * | 2018-01-15 | 2018-07-06 | 昆明理工大学 | A kind of method that 3D printing prepares complex-shaped composite material hot-work die |
| CN108421954A (en) * | 2018-06-08 | 2018-08-21 | 泰州市博世特精密铸造有限公司 | Production method applied to valve wax-pattern |
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2020
- 2020-01-06 CN CN202010011047.3A patent/CN111069531A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201470821U (en) * | 2009-08-07 | 2010-05-19 | 深圳市福麒珠宝首饰有限公司 | Wax pattern forming structure used for jewelry |
| CN102836963A (en) * | 2012-09-09 | 2012-12-26 | 安徽厚林精密金属科技有限公司 | Support casting process |
| CN103801696A (en) * | 2014-02-11 | 2014-05-21 | 北京科技大学 | Method for preparing powder metallurgy complex shape part by using 3D printing mold |
| JP2016078097A (en) * | 2014-10-21 | 2016-05-16 | 冨士ダイス株式会社 | Manufacturing method for powder metallurgy lost wax mold molded by lamination with 3d printer |
| CN104439079A (en) * | 2014-12-24 | 2015-03-25 | 苏州东风精冲工程有限公司 | Preparation method of spheroidal-graphite-cast-iron shifting fork of automobile transmission |
| CN104889348A (en) * | 2015-06-19 | 2015-09-09 | 东方电气集团东方汽轮机有限公司 | Method for measuring high-temperature alloy critical nucleation super-cooling degree |
| CN206663808U (en) * | 2017-04-10 | 2017-11-24 | 重庆科创职业学院 | For implementing the device of 3D printing casting technique |
| CN108247053A (en) * | 2018-01-15 | 2018-07-06 | 昆明理工大学 | A kind of method that 3D printing prepares complex-shaped composite material hot-work die |
| CN108421954A (en) * | 2018-06-08 | 2018-08-21 | 泰州市博世特精密铸造有限公司 | Production method applied to valve wax-pattern |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589045A (en) * | 2020-11-17 | 2021-04-02 | 连云港源钰金属制品有限公司 | Preparation method of casting die |
| KR102464566B1 (en) * | 2022-08-01 | 2022-11-09 | (주)효진오토테크 | Reactor manufacturing method improvement system |
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Application publication date: 20200428 |