Casting die based on 3D printing and preparation method thereof

A 3D printing and mold technology, which is applied in casting molding equipment, additive processing, etc., can solve the problems of unguaranteed product quality, poor precision of wooden models, scrapped wooden models, etc., to achieve low production costs, reduce weight, and improve The effect of surface quality

Active Publication Date: 2017-08-29
柳州智云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]1. Metal models are usually processed by mechanical automation, with high processing precision and short processing cycle, but there are disadvantages such as heavy model weight, difficult handling and high production cost;
[0004]2. Wooden models are usually made by hand, by cutting paper samples, measuring the size, making one step, measuring one step, the efficiency is very low, as long as a certain step If there is an error in the production, the entire wooden model will be scrapped and it will be n

Method used

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  • Casting die based on 3D printing and preparation method thereof
  • Casting die based on 3D printing and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 , figure 2 As shown, a casting mold based on 3D printing of the present invention includes parts I1 and parts II2 obtained by 3D printing. The 3D printing materials of parts I1 and parts II2 of the present invention are PLA or ABS materials, and the thermal softening temperature of the printing materials is greater than 80°C; the component I1 and component II2 are connected as a whole through the dovetail groove 4 .

[0036] Part I1 and part II2 of the present invention are both cavity structures, and the planes of part I1 and part II2 are provided with pouring openings 3, through which pouring openings 3 are filled with resin fiber layers 5, Fiber layer 6 and foam layer 7. The pouring opening 3 is arranged on the plane of the component, and after the composite material is filled into the cavity, it is easy to perform grinding treatment on the pouring opening 3 .

[0037] In this embodiment, the resin fiber layer 5 is a mixture of slow-drying resin ...

Embodiment 2

[0042] A method for preparing a casting mold based on 3D printing described in embodiment 1, comprising the following steps:

[0043] (1) Use modeling software to model to obtain the overall model of the casting mold, divide the overall model into several parts connected by dovetail grooves, and export several parts as STL format files;

[0044] (2) Import the STL format files into the slicing software for slicing processing, and print the slicing data with a 3D printer to obtain several hollow structural parts;

[0045] (3) Process a perfusion opening with a diameter of 10-20 mm at the plane of each component obtained in step (2), and process a vent hole with a diameter of 1-5 mm at the dead corner of each component where the gas does not easily flow;

[0046] (4) Fill the cavity of the part obtained in step (3) with the mixture of slow-drying resin and reinforcing fiber respectively through the pouring opening, and shake the part so that a layer of resin fiber layer is evenl...

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Abstract

The invention provides a casting die based on 3D printing. The casting die based on 3D printing comprises a component I and a component II obtained through 3D printing. A cavity of the component I and a cavity of the component II are each filled with a resin fiber layer, a fiber layer and a foaming layer from outside to inside in sequence. A preparation method of the casting die comprises the steps of (1) modeling: segmenting a model into a plurality of components connected through dovetail grooves; (2) using a 3D printer to conduct printing to obtain a plurality of components of a hollow structure; (3) machining a filling port in the plane of each component; (4) filling up a cavity of each component with a mixture of slow dry resin and reinforce fiber; (5) adding glass fiber into the cavity of each component; (6) injecting a foam material into the cavity of each component; (7) connecting the components through the dovetail grooves; and (8) filling up gaps of the dovetail grooves with A/B glue, conducting coating of epoxy resin and then conducting grinding and polishing. The casting die based on 3D printing and the preparation method thereof have the advantages that the precision is high, the preparation cycle is short, the weight is low, the die strength is high, and the production cost is low.

Description

technical field [0001] The invention belongs to the technical field of moulds, and relates to a casting mold, in particular to a 3D printing-based casting mold and a preparation method of the mold. Background technique [0002] Casting mold means that in order to obtain the structural shape of the part, other easy-to-form materials are used to make the structural shape of the part in advance, and then the mold is placed in the sand mold, so a cavity with the same structural size as the part is formed in the sand mold. Then, a fluid liquid is poured into the cavity, and after the liquid cools and solidifies, a part with exactly the same shape and structure as the mold can be formed. Casting molds often use metal models or wooden models, and their characteristics are as follows: [0003] 1. Metal models are usually processed by mechanical automation, with high processing precision and short processing cycle, but there are disadvantages such as heavy model weight, difficult ha...

Claims

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Application Information

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IPC IPC(8): B22C7/02B33Y10/00B33Y80/00
CPCB22C7/023B33Y10/00B33Y80/00Y02P10/25
Inventor 路文虎徐剑
Owner 柳州智云科技有限公司
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