Rapid cooling device and system for powder bed 3D printing

Abstract

The invention belongs to the related technical field of 3D printing, and discloses a rapid cooling device and system for powder bed 3D printing. The rapid cooling device comprises a basic base plate, a variable base plate and a cooling water tank, a groove is formed in the basic base plate, the cooling water tank is arranged in the groove, the variable base plate is arranged on the cooling water tank and serves as a 3D printing forming table top, circulating cooling water is introduced into the cooling water tank in the 3D printing process, and the variable base plate is cooled, so that timely and rapid cooling of a formed part in the printing process is achieved. The invention further discloses a 3D printing system using the cooling device. By means of the rapid cooling device and system, forming and cooling are conducted at the same time, grain size increasing in the forming process is restrained, element distribution uniformity is kept, and the strength of the formed part is improved.

Description

technical field [0001] The invention belongs to the technical field related to 3D printing, and more specifically relates to a rapid cooling device and system for powder bed 3D printing. Background technique [0002] With the continuous advancement of science and technology, the requirements for industrial products are also constantly increasing, so the processed parts are also developing in the direction of precision, complexity and integration. However, traditional manufacturing methods, such as casting, forging and other processing methods, can no longer meet the needs of today's industries. 3D printing technology has emerged. Component. [0003] The traditional 3D printing technology performs 3D printing after preheating the substrate, and then naturally cools the molded parts after manufacturing. However, the long-term heating of the substrate results in a long natural cooling time, which causes the grain size to increase, element segregation, and strength to decrease....

AI Technical Summary

Problems solved by technology

However, traditional manufacturing methods, such as casting, forging and other processing methods, can no longer meet the needs of today's industries. 3D printing technology has emerged. Components

[0003] The traditional 3D printing technology performs 3D printing after preheating the substrate, and then naturally cools the molded parts after manufacturing. However, the long-term heating of the substrate results in a long natural cooling time, which causes the grain size to increase, element segregation, and strength to decrease.

Images