A rapid precision casting process based on light curing 3D printing technology

Abstract

The invention relates to a rapid precise casting technology based on a photocuring 3D printing technique, and belongs to the technical field of a melted module precise casting. The rapid precise casting technology comprises the following steps: firstly, carrying out a CAD optimization design on an objective part based on 3D modeling software, mainly including establishing a 3D model of the objective part, designing a pouring system, carrying out prescale treatment and carrying out shell drawing treatment; secondly, carrying out photocuring 3D printing and forming on an integral model of the objective part so as to obtain an integral resin prototype of the objective part and a pouring system of the objective part; carrying out silica sol investment casting by taking the integral resin prototype of the objective part as a melted mold, including the working procedures of manufacturing a shell, roasting, pouring, removing the shell, carrying out aftertreatment and the like sequentially; and finally preparing the precise metal casting of the objective part. According to the rapid precise casting technology, the mold manufacturing cost is reduced; the part manufacturing cycle is shortened; the product development efficiency is improved; parts with complex shapes can be rapidly and precisely cast.

Description

technical field [0001] The invention relates to a process, in particular to a rapid precision casting process based on light-curing 3D printing technology, which belongs to the field of investment precision casting technology. Background technique [0002] 3D printing technology is an emerging technology that is rapidly developing in the manufacturing field, and it 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 essentially different from the traditional processing technology to realize the product forming process through cutting, grinding, stamping, etc., only using three-dimensional design data on one device. It can quickly and accurately manufacture parts of any complex shape without the need for molds, effectively shortening the processing cycle, and is easy to realize rapid manufacturing of single-piece small batches of complex-sh...

AI Technical Summary

Problems solved by technology

Although this method reduces the casting cost, shortens the production cycle, and avoids the cracking of the shell during the firing process, the conventional wax pouring system only sets the ingate on the resin prototype, and it needs to be processed after the production is completed. Manually setting wax sticks on the part resin prototype is time-consuming and laborious, and it is difficult to ensure that the manufactured gating system is consistent with the optimal design plan, which will have a certain impact on the quality of the final cast metal parts and will reduce the quality stability of batch casting products. Moreover, it is limited by the manual process, which increases the complexity of the process, so it still has defects.

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