A kind of 3d printing method and double-beam 3d printing equipment

A 3D printing and 3D printer technology, applied in the field of 3D printing, can solve problems such as thermal stress concentration and lattice damage, and achieve the effects of good corrosion resistance, elimination of mutations, and long durability

Active Publication Date: 2022-01-21
上海梁为科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 3D printing technology generally uses high-power continuous lasers or electron beams to melt and solidify printing materials, but these "thermal processing" methods will lead to thermal stress concentration and lattice destruction on printed points, lines, and surfaces.

Method used

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  • A kind of 3d printing method and double-beam 3d printing equipment
  • A kind of 3d printing method and double-beam 3d printing equipment
  • A kind of 3d printing method and double-beam 3d printing equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The 3D printing method of the present embodiment comprises the following steps:

[0045] 1) Transport the nickel alloy printing powder to the printing beam nozzle, spray out to form the base nickel alloy layer, and the thickness of the base nickel alloy layer is 1mm;

[0046] 2) The aluminum-silicon printing powder is transported to the printing beam nozzle, and sprayed out to form an aluminum-silicon layer on the nickel alloy layer; the thickness of the aluminum-silicon layer is 0.005mm;

[0047] 3) While printing, the interface between the nickel alloy layer and the aluminum-silicon layer is irradiated with a femtosecond intense pulse energy beam to form a continuous gradient transition layer at the interface; the irradiation time is 1 sec. Area is 1×10 -4 mm 2 , the frequency is 1,000 / sec, the wavelength is 1064nm, and the pulse width of the single pulse in the femtosecond pulse energy beam is 1.5×10 -13 sec, the energy density of a single pulse is 1mJ / mm 2 , the...

Embodiment 2

[0050] The 3D printing method of the present embodiment comprises the following steps:

[0051] 1) Transport the nickel-based alloy printing powder to the printing beam nozzle, spray out to form a base nickel-based alloy layer, and the thickness of the base nickel-based alloy layer is 1mm;

[0052] 2) The aluminum-silicon printing powder is delivered to the printing beam nozzle, and sprayed out to form an aluminum-silicon layer on the nickel-based alloy layer; the thickness of the aluminum-silicon layer is 0.005mm;

[0053] 3) After forming a layer of printing layer, the interface between the nickel-based alloy layer and the aluminum-silicon layer is irradiated with a picosecond strong pulse energy beam to form a continuous gradient transition layer at the interface, namely; the irradiation The time is 10sec, and the irradiation area is 10mm 2 , the frequency is 100 / sec, the wavelength is 1064nm, and the pulse width of the single pulse in the picosecond intense pulse energy b...

Embodiment 3

[0056] The 3D printing method of the present embodiment comprises the following steps:

[0057] 1) Transport the nickel-based alloy printing powder to the printing beam nozzle, spray out to form a base nickel-based alloy layer, and the thickness of the base nickel-based alloy layer is 1mm;

[0058] 2) The aluminum-silicon printing powder is delivered to the printing beam nozzle, and sprayed out to form an aluminum-silicon layer on the nickel-based alloy layer; the thickness of the aluminum-silicon layer is 0.005mm;

[0059] 3) After forming a layer of printing layer, the interface between the above-mentioned layers is irradiated with nanosecond strong pulse energy to form a continuous gradient transition layer at the interface; the irradiation time is 10 sec, and the irradiation time Photo area is 100mm 2 , the frequency is 100 / sec, the wavelength is 1064nm, and the pulse width of the single pulse in the nanosecond intense pulse energy beam is 1×10 -8 sec, the energy density...

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Abstract

The invention relates to the field of 3D printing, in particular to a 3D printing method and a double-beam 3D printing device. The 3D printing method of the present invention includes the following steps: delivering the printing material to the printing beam nozzle; driving the printing beam nozzle to move and eject the printing material to form a printing layer on the substrate; layer; the interface between the substrate and the printing layer and between the printing layer and the printing layer is irradiated with an intense pulse energy beam / particle beam to form a continuous gradient transition layer at the interface, that is. The 3D printing method of the present invention uses intense pulsed energy beams / particle beams to perform cold processing on the interface, so that the atoms at the interface instantly diffuse, melt and solidify to form a continuous gradient transition layer, eliminating the sudden change in thermal and mechanical properties on the interface, and thermal processing The resulting thermal stress and lattice defects on printed points, lines, and surfaces greatly improve the durability, high temperature and high pressure resistance of 3D printing additive products.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a 3D printing method and a double-beam 3D printing device. Background technique [0002] 3D printing is first modeled by computer modeling software, and then the built 3D model is "partitioned" into layer-by-layer sections, that is, slices, so as to guide the printer to print layer by layer. The printer reads the cross-sectional information in the file, prints these cross-sections layer by layer with liquid, powdery or sheet materials, and then glues the cross-sections of each layer in various ways to create an entity. The peculiarity of this technique is that it can create objects of almost any shape. The thickness of the section printed by the printer (that is, the Z direction) and the resolution of the plane direction, that is, the X-Y direction are calculated in dpi (pixels per inch) or microns, and the general thickness is several microns to hundreds of microns. [0003] 3D prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/10B29C64/273B33Y10/00B33Y30/00B22F3/105
CPCY02P10/25
Inventor 梁家昌郑震李涛彭志学
Owner 上海梁为科技发展有限公司
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