CN110216285A

CN110216285A - A kind of compound high-thermal conductive metal 3D printing method

Info

Publication number: CN110216285A
Application number: CN201910530937.2A
Authority: CN
Inventors: 张占波; 赵波
Original assignee: Shanghai Yisu Laser Technology Co Ltd
Current assignee: Shanghai Yisu Laser Technology Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2019-09-10

Abstract

The invention discloses a kind of compound high-thermal conductive metal 3D printing methods, comprising: 1) chooses printing powder 420, printing powder need to be sieved through through 300 mesh with upper screen cloth；2) powder drying and processing；3) filling powder is filled out inside powder cabin to printer, and fills in reality；Compound high-thermal conductive metal 3D printing method provided by the invention increases inlaid piece of mould because the heat at the smaller position that profile-followed water route can not be arranged of size conducts, reduces the molding cycle of product, increase the yield in the unit of the product time, improve productivity.

Description

A kind of compound high-thermal conductive metal 3D printing method

Technical field

The present invention relates to 3D printing technique field more particularly to a kind of compound high-thermal conductive metal 3D printing methods, mainly answer It needs to increase on cooling inlaid piece of mould in mould applications.

Background technique

Although existing 3D printing technique can produce the inlaid piece of mould for having profile-followed water route in inside, however, to ensure that The intensity of workpiece, the wall thickness in water route to the edge of work need to guarantee certain size, if water route to the edge of work wall thickness compared with Thin, the service life of workpiece can have a greatly reduced quality.

Summary of the invention

The application provides a kind of compound high-thermal conductive metal 3D printing method, and increasing inlaid piece of mould can not be arranged because size is smaller The heat conduction at the position in profile-followed water route, reduces the molding cycle of product, increases the yield in the unit of the product time, improve life Yield.

Specifically, the application is achieved by the following technical solution:

1) metal 3D printing powder material is chosen；

2) powder drying and processing；

3) filling powder is filled out inside powder cabin to printer, and fills in reality；

4) on installation printing bottom plate to printer；

5) closed printing chamber door, pre- hot print bottom plate simultaneously rush inert protective gas to reduce Photocopy Room oxygen content；

6) after bottom plate preheating to be printed and oxygen content reduce, importing, which prints data to, to be started to print in printer；

7) pause when printing to the height to be inlayed of metal needle opens door, and metal needle is inserted into and is stayed in advance Hole in；

8) 5-6 step is repeated, remainder is printed.

Optionally, metal 3D printing powder material is that 420 molds print powder, and printing powder is sieved through 300 mesh with upper screen cloth It crosses.

Optionally, printing workpiece is taken out after the completion of printing, and floor is online to be cut off from printing workpiece.

Optionally, printing workpiece is put into tempering furnace, workpiece is taken out after tempering.

The present invention has the following beneficial effects with respect to the prior art: the pause when printing workpiece and printing to certain height Door is opened, and copper needle is inserted into the hole stayed in advance, then proceedes to printing remainder, such copper needle can be inlayed completely In inside workpiece, the molding cycle of product is reduced, increases the yield in the unit of the product time, improves productivity.

Detailed description of the invention

Fig. 1 is the print procedure schematic diagram of compound high-thermal conductive metal.

In figure:

1 profile-followed water route, 2 inlaid piece of mould, 3 copper rods

Specific embodiment

3D printing: 3D printing technique is also known as increases material manufacturing technology, laser accumulation type technology or rapid laser-shaping technique, is One kind is based on digital model file, with the adhesive material of powdery metal or plastic, by layer-by-layer printing To construct the technology of object

Mold: refer to the three-dimensional shape plastics for going molding that there is certain shapes and size using itself particular encapsulated cavity The tool of product

The application provides a kind of compound high-thermal conductive metal 3D printing method, inlaid piece of mould can not be arranged because size is smaller with The position in shape water route increases highly heat-conductive material, to increase the heat conduction of size smaller part position.

Specific steps are as follows:

1. choosing printing powder 420, printing powder need to be sieved through through 300 mesh with upper screen cloth.

2. powder drying and processing.

3. filling powder is filled out inside powder cabin to printer, and fills in reality.

4. on installation printing bottom plate to printer.

5. closed printing chamber door, pre- hot print floor simultaneously rushes inert protective gas to reduce Photocopy Room oxygen content.

6. bottom plate to be printed is preheating to certain temperature and oxygen content is reduced to after certain value, importing prints data to printing Start to print in machine.

7. the pause when printing to the height to be inlayed of copper needle opens door, and copper needle is inserted into the hole stayed in advance It is interior.

8. repeating 5-6 step, remainder is printed.

9. taking out printing workpiece after the completion of printing, and floor is online to be cut off from printing workpiece.

10. a printing workpiece is put into tempering furnace, workpiece is taken out after being tempered a period of time at a certain temperature.

Copper needle can be substituted for acupuncture needle, other high thermal conductivity materials such as aluminium needle.

The section of copper can be replaced rectangularity, square or other odd-shaped cross sections by circle.

Although the present invention is disclosed as above with preferred embodiment, however, it is not to limit the invention, any this field skill Art personnel, without departing from the spirit and scope of the present invention, when can make a little modification and perfect therefore of the invention protection model It encloses to work as and subject to the definition of the claims.

Claims

1. a kind of compound high-thermal conductive metal 3D printing method, it is characterised in that:

1) metal 3D printing powder material is chosen；

2) powder drying and processing；

4) on installation printing bottom plate to printer；

7) pause when printing to the height to be inlayed of metal needle opens door, and metal needle is inserted into the hole stayed in advance It is interior；

8) 5-6 step is repeated, remainder is printed.

2. compound high-thermal conductive metal 3D printing method as described in claim 1, it is characterised in that: metal 3D printing powder material Powder is printed for 420 molds, printing powder is sieved through through 300 mesh with upper screen cloth.

3. compound high-thermal conductive metal 3D printing method as described in claim 1, it is characterised in that: take out printing after the completion of printing Workpiece, and from printing, floor is online to be cut off workpiece.

4. compound high-thermal conductive metal 3D printing method as claimed in claim 2, it is characterised in that: printing workpiece is put into tempering In furnace, workpiece is taken out after tempering.