Metal or ceramic consumable item for FDM 3D printing, preparation method for metal or ceramic consumable item and finished product printing method

A technology of ceramics and metals, applied in the field of 3D printing, can solve the problems of expensive equipment processing costs, limited application of metals and ceramics, and limited printing structures, and achieve low material and processing costs, wide range of adaptable materials, and high miniaturization capabilities Effect

Inactive Publication Date: 2016-06-15
HUIZHOU RES INST OF SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has many disadvantages: ①The cost of equipment, materials and processing is very expensive; ②The printed structure is limited, such as hollow or closed objects are difficult to print; ③The requirements for the sphericity, particle size distribution, and fluidity of the powder are very strict. High, the quality of the powder has a great influence on the printing effect; ④The types of materials that can be printed are very limited
This ceramic 3D printing technology faces the following problems: ①When clay is printing a large object, it is easy to cause the printed object to collapse due to its own weight; ②The viscosity of the ceramic is relatively high due to the humidity, and air bubbles must be strictly removed , the material is not easy to prepare; ③ ceramics need to be processed or checked manually during the printing process
However, FDM3D printing technology is mostly used to print plastics, and cannot print metals and ceramics, which limits the application of metals and ceramics in 3D printing.

Method used

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  • Metal or ceramic consumable item for FDM 3D printing, preparation method for metal or ceramic consumable item and finished product printing method
  • Metal or ceramic consumable item for FDM 3D printing, preparation method for metal or ceramic consumable item and finished product printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Step S11: Weigh the raw materials of each component according to the component distribution ratio of metal consumables for FDM3D printing, PP3015: 1.0KG, POE610: 0.5KG, PP-g-MAH: 0.2KG, aluminum powder: 8KG, antioxidant 1010: 0.05 KG, antioxidant 168: 0.05KG, EBS: 0.1KG, calcium stearate: 0.1KG.

[0033] Step S12: Mix the materials evenly with a mixer.

[0034] Step S13: Extrude the mixed material through a twin-screw extruder at a processing temperature of 180-220° C., water-cool, air-dry, and pelletize to make PP-bonded aluminum pellets.

[0035] Step S14: The pellets are extruded through a single-screw extruder at a processing temperature of 200°C, water-cooled, air-dried, drawn into strips, and coiled to produce metal aluminum consumables for FDM3D printing.

[0036] Step S15: Print and shape the metal aluminum consumables for FDM3D printing with the FDM3D printer, and the printing temperature is 220°C.

[0037] Step S16: The obtained printed part is subjected to ...

Embodiment 2

[0039] Step S21: Weigh the raw materials of each component according to the component distribution ratio of metal consumables for FDM3D printing, ABS757: 4.0KG, ABS high rubber powder: 1.0KG, maraging steel powder: 5.0KG, antioxidant DLTP: 0.005KG , antioxidant 168: 0.005KG, paraffin: 0.01KG.

[0040] Step S22: mix each component uniformly by a mixer.

[0041] Step S23: Extrude the mixed material through a twin-screw extruder at a processing temperature of 200° C., water-cool, air-dry, and pelletize to make ABS-bonded metal steel pellets.

[0042] Step S24: Extrude the pellets through a single-screw extruder at a processing temperature of 210°C, water-cool, air-dry, draw a strip, and coil to make a metallic steel consumable for FDM3D printing.

[0043] Step S25: The metal steel consumables for FDM3D printing are printed and shaped by the FDM3D printer, and the printing temperature is 220°C.

[0044] Step S26: Solvent degrease the obtained printed part in DBE solution at 60°C f...

Embodiment 3

[0046] Step S31: Weigh the raw materials of each component according to the composition ratio of metal consumables for FDM3D printing, PVA: 3.0KG, titanate coupling agent: 0.05KG, titanium alloy powder: 7.0KG, antioxidant 1010: 0.01KG, Antioxidant 168: 0.02KG, OP wax: 0.05KG.

[0047] Step S32: first mix the titanium alloy powder and the titanate coupling agent uniformly through a mixer, and then add the rest of the materials and mix uniformly.

[0048] Step S33: Extrude the mixed material through a twin-screw extruder at a processing temperature of 230-240° C., air-cool, air-dry, and pelletize to produce PVA-bonded titanium alloy pellets.

[0049] Step S34: Extrude the pellets through a single-screw extruder at a processing temperature of 230° C., air-cool, air-dry, draw a strip, and coil to make a metal titanium alloy consumable for FDM 3D printing.

[0050] Step S35: The titanium alloy consumables for FDM3D printing are printed into shape by the FDM3D printer, and the prin...

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PUM

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Abstract

The invention discloses a metal or ceramic consumable item for FDM 3D printing, a preparation method for the metal or ceramic consumable item and a finished product printing method. The metal or ceramic consumable item comprises, by weight, 15-50 parts of a high polymer material, 0-2 parts of a compatilizer, 50-80 parts of metal powder or ceramic powder, 0.1-1 part of an antioxygen and 0.1-2 parts of a lubricating agent. The cost for equipment, the materials and machining is low; a printing structure is free of limitation, collapsing conditions do not exist in the printing process, supports can be removed before fusion sintering of the product, and treatment is easier compared with a manner that the supports are removed after SLS or EBAM fusion sintering; the requirements for the sphericity degree, the size distribution, the mobility and the like are relatively low; the types of metal and ceramic capable of being printed are wider; and the density of the finished products is higher, the strength is high, the degree of finish is higher, the miniaturization capacity is high, the thin-wall capacity is high, the complexity is high, the design tolerance level is high, and the material adaption scope is wide.

Description

Technical field: [0001] The invention relates to the technical field of 3D printing, in particular to a metal or ceramic consumable for FDM3D printing, a preparation method thereof, and a method for printing finished products. Background technique: [0002] Common metal or ceramic 3D printing technologies require the use of high-density energy, such as laser SLS or electron beam EBAM, to fuse metal or ceramic powder on the printing bed according to a predetermined shape, and create a three-dimensional structure layer by layer. This method has many disadvantages: ①The cost of equipment, materials and processing is very expensive; ②The printed structure is limited, such as hollow or closed objects are difficult to print; ③The requirements for the sphericity, particle size distribution, and fluidity of the powder are very strict. High, the quality of the powder has a great influence on the printing effect; ④The types of materials that can be printed are very limited. Ceramic 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B28B1/00B33Y70/00
CPCB28B1/001B33Y70/00B22F1/10
Inventor 纪红兵代文曾永斌
Owner HUIZHOU RES INST OF SUN YAT SEN UNIV
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