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3D printing method used for printing elbow pipe in axial direction based on five-axis printing platform

A printing platform, 3D printing technology, applied in the field of space 3D printing to achieve the effect of improving strength

Active Publication Date: 2019-02-22
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no method for 3D printing elbows along their axial direction.

Method used

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  • 3D printing method used for printing elbow pipe in axial direction based on five-axis printing platform
  • 3D printing method used for printing elbow pipe in axial direction based on five-axis printing platform
  • 3D printing method used for printing elbow pipe in axial direction based on five-axis printing platform

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Experimental program
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Embodiment Construction

[0035] The present invention is described in detail below in conjunction with accompanying drawing and embodiment, and present embodiment is carried out under the premise of technical solution of the present invention, provides detailed implementation and specific operation process, but protection scope of the present invention is not limited to the following the embodiment.

[0036] like figure 1 As shown, a 3D printing method based on a five-axis printing platform to print an elbow along the axial direction includes the following steps:

[0037] Step 1: This example uses SolidWorks 2014 software as the 3D modeling software to establish figure 2 The bend pipe fitting model shown is stored as an STL format file;

[0038] The second step: if image 3 As shown, the model is placed in the spatial rectangular coordinate system, and according to the characteristics of the five-axis linkage 3D printer, the A axis rotating around the X axis (the swing axis of the printing platfor...

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Abstract

The invention relates to a 3D printing method used for printing an elbow pipe in the axial direction based on a five-axis printing platform. The method comprises the following specific steps that a model neutral skeleton point set is extracted according to triangular patch data of a model STL file, curve fitting is performed on the neutral skeleton point set to obtain a neutral skeleton curve, slicing points are selected on the neutral skeleton curve of a model, and slicing is performed along a plane perpendicular to the tangential direction of the neutral skeleton curve; a cross section pointset is obtained according to the slicing method and the triangular patch data, and fitting is performed on the point set to obtain a cross section equation; a coordinate on a tangent plane parallel to the Z axis is calculated through the cross section equation; the coordinates of the elbow pipe on the other tangent planes are calculated through rotating and a cross section translating method, andall the coordinates of the elbow pipe are read; the coordinates of the position where the elbow pipe is located currently are converted into printing coordinates through a coordinate converting method; and finally, G codes recognized by a five-axis 3D printer are generated and input into the printer, and printing is completed on exhausting supports.

Description

technical field [0001] The invention relates to the technical field of spatial 3D printing, in particular to a 3D printing method for printing elbows along the axial direction based on a five-axis printing platform. Background technique [0002] 3D printing is a kind of additive manufacturing technology. Based on the digital model file, the computer is used to cut the model into a series of thin slices. The 3D printing equipment manufactures each layer of thin slices from bottom to top, and finally superimposes them to form a three-dimensional entity. This manufacturing technology does not require traditional tools or molds, and can realize the manufacture of complex structures that are difficult or impossible to process by traditional techniques, and can effectively simplify the production process and shorten the manufacturing cycle. [0003] Existing 3D printers are mostly three-degree-of-freedom, and the manufacturing form is stacked layer by layer along the Z-axis direc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/386B33Y50/00
CPCB33Y50/00B29C64/386
Inventor 张海光钟文光黄廷龙王明黔胡庆夕
Owner SHANGHAI UNIV
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