Rapid wax injection mold manufacturing process based on photo-curing 3D printing technique

Abstract

The invention relates to a rapid wax injection mold manufacturing process based on a photo-curing 3D printing technique and belongs to the technical field of rapid manufacturing of molds. The rapid wax injection mold manufacturing process comprises the following steps: firstly building a mold component three-dimensional model and carrying out structure optimization design and shell-drawing design, secondly forming a mold shell three-dimensional model through photo-curing 3D printing to manufacture a resin mold shell, then mounting a metal cooling pipeline in the resin mold shell; finally preparing a metal resin mixture by taking epoxy resin, epoxy curing agents and metal powder as the raw materials, and filling the metal resin mixture in the resin mold shell and manufacturing the rapid wax injection mold after the metal resin mixture is completely cured. Through the rapid wax injection mold manufacturing process based on the photo-curing 3D printing technique, the manufacturing cost of the wax injection mold can be reduced; the manufacturing cycle of the wax injection mold is shortened; the manufactured wax injection mold is high in mechanical strength, high in heat conduction performance and long in service life; the practicability of the wax injection mold in the casting field can be effectively improved; the wax injection mold is conveniently popularized and applied in the field of single-piece, small-batch and rapid casting.

Description

technical field [0001] The invention relates to a process, in particular to a rapid wax-pressing mold manufacturing process based on light-curing 3D printing technology, which belongs to the technical field of rapid mold manufacturing. Background technique [0002] Investment casting is a widely used near-net shape process, especially in the production process of high-precision and complex structure castings, which has irreplaceable advantages. The first process of investment casting production is to make a wax pattern, which is called an investment pattern. Traditional investment casting generally uses a metal stamped wax mold as a pressure pattern to make a wax pattern. There are many traditional mold manufacturing methods, such as CNC milling, forming grinding, EDM, wire cutting, casting molds, electrolytic machining, electroforming and so on. However, due to the complex production process, long development cycle and high manufacturing cost of traditional molds, it is m...

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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