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Manufacturing method of eddy current conformal cooling water channel based on metal 3D printing

A conformal cooling and 3D printing technology, which is applied in the field of mold manufacturing, can solve problems such as the influence of mold structure strength and precision, high manufacturing difficulty, and complex shape, and achieve the effects of improving heat dissipation, reducing collapse, and increasing contact area

Active Publication Date: 2022-04-29
SHANTOU UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal additive manufacturing has obvious advantages when forming a relatively simple conformal cooling channel: simple process, rapid forming, strong integrity and high reliability; but the conformal cooling channel based on metal additive manufacturing is usually too complicated due to its shape. Lack of sufficient support may affect the structural strength and precision of the mold. In severe cases, the mold will collapse inside, so it is difficult to manufacture

Method used

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  • Manufacturing method of eddy current conformal cooling water channel based on metal 3D printing
  • Manufacturing method of eddy current conformal cooling water channel based on metal 3D printing
  • Manufacturing method of eddy current conformal cooling water channel based on metal 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1-3 The shown eddy current conformal cooling waterway based on metal 3D printing includes two spiral cooling water channels 1 arranged on the mold body. The spiral cooling water channel 1 has a water inlet and a water outlet, and the two spiral cooling water channels 1 are arranged in parallel according to the same spiral direction; the inner wall of the spiral cooling water channel 1 is provided with a strip-shaped heat dissipation unit protruding toward the inner cavity of the spiral cooling water channel 1, and the strip-shaped heat dissipation unit moves forward according to the spiral direction of the spiral cooling water channel 1 The outlet to which the spout extends.

[0040] The strip heat dissipation unit includes six riflings 2 protruding from the inner wall of the spiral cooling water channel 1 , and each rifling 2 is distributed along the circumferential direction of the spiral cooling water channel 1 .

[0041] In the above-mentioned eddy ...

Embodiment 2

[0056] The difference between this embodiment and embodiment 1 is: as Figure 4 As shown, the cross section of the rifling 2' is trapezoidal.

Embodiment 3

[0058] The difference between this embodiment and embodiment 1 is: as Figure 5 As shown, the rifling 2" has a rectangular cross-section.

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Abstract

The invention discloses a method for manufacturing an eddy current conformal cooling waterway based on metal 3D printing, which includes designing a three-dimensional model of the eddy current conformal cooling waterway. The three-dimensional model includes at least one cooling waterway arranged on the mold body. The cooling waterway has further The water outlet and the water outlet, the cooling water channel is a spiral cooling water channel; the inner wall of the spiral cooling water channel is provided with a strip-shaped heat dissipation unit protruding toward the inner cavity of the spiral cooling water channel, and the strip-shaped heat dissipation unit follows the spiral direction of the spiral cooling water channel. The water inlet is extended to the water outlet; then the three-dimensional model is printed into a complete mold body by 3D printing. This kind of eddy current conformal cooling water channel can increase the contact area between the cooling water channel and the cooling liquid, thereby improving the heat dissipation effect and improving production efficiency; at the same time, it can play a role of supporting structure for the whole mold in the process of metal 3D printing, reducing the increase in temperature. The collapse of the material during the material manufacturing process.

Description

technical field [0001] The invention relates to the field of mold manufacturing, in particular to a method for manufacturing an eddy current conformal cooling water channel based on metal 3D printing. Background technique [0002] In the injection molding production process, after the raw materials are filled into the mold and shaped, it is necessary to wait for the raw materials to solidify and the temperature to drop to the ejection temperature, and the injection molding process is basically completed before the product can be taken out. The cooling system of the traditional mold generally adopts a linear cooling water channel. When the structure and surface shape of the product are relatively complex, the traditional cooling system will have poor cooling efficiency during the production process. Not only the production efficiency is low, but also the injection molding product warpage Therefore, the cooling efficiency of the injection mold plays a vital role in the product...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F5/00B29C45/73B33Y10/00B33Y50/02
CPCB22F5/007B33Y10/00B33Y50/02B29C45/7312B22F10/00B22F10/36B22F10/32B22F12/41B22F10/28B22F12/37B22F10/68B22F12/17Y02P10/25
Inventor 毛忠发卢向东张汉瑞牛小东张秋娟陈滨
Owner SHANTOU UNIV
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