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Precision casting forming method based on 3D printing technology

A 3D printing and precision casting technology, used in casting molding equipment, casting molds, casting mold components, etc., can solve the problems of inability to achieve casting manufacturing, and do not use mold shell formation, saving production cycle, saving materials, and facilitating baking. Effect

Inactive Publication Date: 2020-05-08
无锡惠思特快速制造科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] For precision castings with complex inner cavities, it is not easy to stick slurry and float sand in the inner cavity, so the formation of the mold shell is not used in the inner cavity, and the above process cannot realize the manufacturing of castings with complex inner cavities

Method used

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  • Precision casting forming method based on 3D printing technology
  • Precision casting forming method based on 3D printing technology

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Embodiment Construction

[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Such as figure 1 As shown, the precision casting molding method based on 3D printing technology of the present invention includes the following processes:

[0023] (1) 3D modeling software is used to draw the digital model of castings and casting system. The casting system is first designed, and then the procast software is used to analyze the mold flow, and then the casting system is improved to obtain the casting process model; at the same time, the casting process model is obtained according to the cavity of the casting. The digital model of the core is drawn, in which the core contains a positioning structure; the positioning structure is used to fix the ceramic core on the mold shell after firing.

[0024] (2) Partition the casting model according to the core structure, and divide it into at least two halves, so that the core can be pla...

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Abstract

The invention discloses a precision casting forming method based on a 3D printing technology. Three-dimensional modeling software is used for drawing a digital model of a casting piece and drawing ofa casting system, and then the core design is carried out according to an inner cavity, so that a model of a ceramic core with a positioning system is obtained. Parting is carried out according to thestructure of the ceramic core so that the ceramic core can be assembled and put in conveniently, and the process model is divided into a front model body and a rear model body. The front model body,the rear model body and the casting system are subjected to 3D printing by using an SLA photocuring process, and 3D printing of the ceramic core is carried out by using a 3DP ink jet process; a part prototype containing the ceramic core and the resin casting system is obtained after fixing and combination; and finally a metal part is obtained through shell making, roasting and casting of a traditional precision casting process. By the adoption of the precision casting forming method based on the 3D printing technology, casting of the casting piece with the complex inner cavity structure can beachieved without using a mold completely, and the precision casting forming method is very suitable for process verification and small-batch production of casting pieces with complex inner cavity structures.

Description

Technical field [0001] The invention relates to the field of precision casting manufacturing, in particular to a precision casting molding method based on 3D printing technology. Background technique [0002] 3D printing technology is an emerging technology that is rapidly developing in the manufacturing industry, and is called "manufacturing technology with industrial revolution significance." The manufacturing principle of 3D printing technology is based on the idea of ​​"additive manufacturing". It is fundamentally different from the traditional processing technology that uses cutting, grinding, stamping, etc. to achieve product molding. It only uses three-dimensional design data on one device. It can quickly and accurately manufacture arbitrarily complex-shaped parts without molds, effectively shortening the processing cycle, and easy to realize the rapid manufacturing of single-piece and small-batch products with complex shapes. It has obvious cost and efficiency advantages ...

Claims

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Application Information

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IPC IPC(8): B22C9/02B33Y10/00B33Y50/02
CPCB22C9/02B33Y10/00B33Y50/02
Inventor 董志根江剑沈光颜炎
Owner 无锡惠思特快速制造科技有限公司
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