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A Design Methodology for Composite Support Structures for Additive Manufacturing

A support structure and additive manufacturing technology, applied in the field of additive manufacturing, can solve the problems of increased manufacturing time, troublesome post-processing, and difficult to judge, and achieve the effect of improving the problem that cannot be formed

Active Publication Date: 2020-01-07
苏州德普润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the first method increases powder consumption, and it is difficult to judge whether it is feasible after modification; the second method increases manufacturing time, and at the same time brings a lot of trouble to post-processing, because the solid support can only be removed by machining

Method used

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  • A Design Methodology for Composite Support Structures for Additive Manufacturing
  • A Design Methodology for Composite Support Structures for Additive Manufacturing
  • A Design Methodology for Composite Support Structures for Additive Manufacturing

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0039] figure 2 A flow chart of the design method of the combined support structure of Embodiment 1 is illustrated. In step S101, a model of a three-dimensional part is created. Usually, a 3D drawing software is used to create a model of a 3D part. The three-dimensional drawing software used in this embodiment is Materialize Magics (vision.18.0&19.0). image 3 The operation interface of the 3D mapping software is shown. Open the Magics software and import the part model.

[0040] In step S102, after repairing and orientation adjustment, the placement form and position of the three-dimensional part model are determined.

[0041] In step S103, a grid support structure is automatically generated. Figure 4 Schematic of a 3D part with automatically added mesh support structures. Such as Figure 4 As shown, after the placement form and position of the parts 101 are determined, the grid support structure 102 is automatically generated by design software.

[0042] In step S1...

Embodiment 2

[0062] Figure 9 A flow chart of the design method of the combined support structure of Embodiment 2 is illustrated. The difference between the design method of the combined support structure of the second embodiment and the first embodiment lies in step S103, and the step S105 of the first embodiment is omitted. The following combination Figure 9 Introduce the design method of the combined support structure of embodiment 2.

[0063] Steps S201 and S202 are basically the same as steps S101 and S102 in Embodiment 1, creating a three-dimensional part model. After repair and orientation adjustment, determine the placement form and position of the 3D part model.

[0064] In step S203, a solid support structure is automatically generated. This step is different from step S103 in Embodiment 1, the difference lies in the type of the automatically generated support structure. In step S103 of Embodiment 1, a grid support structure is automatically generated, and in step S203, a s...

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Abstract

The invention relates to a design method for a combined support structure for additive manufacturing, comprising the following steps: a. creating a three-dimensional part model; b. determining the placement form and position of the part model; c. creating a amount of the first type of support structure so that there is a certain space between the first type of support structure and the part; d. create a second type of support structure with the same height as the offset amount, and set in said space.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a design method for a composite support structure used for additive manufacturing. Background technique [0002] Selective laser melting metal additive manufacturing has a similar manufacturing state to metal welding, that is, a large amount of heat will be generated during the manufacturing process, and a certain temperature gradient will be formed when the thermal conductivity of the material is small and / or the shape of the part is not conducive to heat dissipation; and Because different heights and different regions in the horizontal direction are not melted and solidified at the same time. The two factors of temperature gradient and non-simultaneous melting and solidification will cause great internal stress. If it is not improved by reasonable methods, the parts will be distorted and deformed, hindering the continuation of the manufacturing process. Even if the manufac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y40/00
CPCB33Y10/00B33Y40/00B22F10/00B22F10/47B22F10/28Y02P10/25
Inventor 王志会许淑泽
Owner 苏州德普润新材料科技有限公司