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Method and apparatus for increasing bonding in material extrusion additive manufacturing

一种挤出头、热塑性材料的技术，应用在制造辅助装置、液体材料增材加工、涂层的装置等方向，能够解决聚合物链不能相互混合等问题

Inactive Publication Date: 2017-05-10
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, making the polymer chains of the new layer unable to intermix with those of the previous layer

Method used

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  • Method and apparatus for increasing bonding in material extrusion additive manufacturing
  • Method and apparatus for increasing bonding in material extrusion additive manufacturing
  • Method and apparatus for increasing bonding in material extrusion additive manufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0056] Embodiment 1: A method of forming a three-dimensional object, comprising: depositing a layer of thermoplastic polymer material on a platform in a predetermined pattern to form a deposited layer; via an energy source target area on the deposited layer An energy beam directing energy to increase the surface energy of the deposited layer at the energy targeting region; contacting the energy targeting region with a subsequent layer, wherein the subsequent layer is deposited along a path of a preset pattern ; wherein directing an energy source at an energy-targeting region includes applying energy to a layer at a region prior to deposition of a subsequent layer to the region; and repeating the preceding steps to form a three-dimensional object.

Embodiment approach 2

[0057] Embodiment 2: A method for forming a three-dimensional object, comprising: depositing a layer of thermoplastic material on a platform in a preset pattern through a nozzle to form a deposition layer using a fused deposition modeling apparatus; increasing the deposition layer at least a portion of the surface energy; depositing a subsequent layer on the deposited layer comprising at least a portion of the increased surface energy; repeating the preceding steps to form a three-dimensional object.

Embodiment approach 3

[0058] Embodiment 3: The method of any one of the preceding embodiments, wherein increasing the surface energy comprises directing an energy source at an energy targeting region on the deposited layer to increase the surface energy of the deposited layer at the energy targeting region; wherein, at Directing an energy source at an energy source targeting region includes applying energy to a layer at a region prior to deposition of a subsequent layer to the region.

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Abstract

A method of forming a three dimensional object comprising: depositing a layer of thermoplastic polymeric material in a preset pattern on a platform (14) to form a deposited layer (50); directing an energy source (54), via an energy beam at an energy source target area (56) on the deposited layer (50) to increase the surface energy of the deposited layer at the energy source target area; contacting the energy source target area (56) with a subsequent layer (52) wherein the subsequent layer (52) is deposited along a path of the preset pattern; wherein directing an energy source (54) at the energy source target area (56) comprises applying energy to the layer at an area preceding the depositing of the subsequent layer to that area; and repeating the preceding steps to form the three dimensional object.

Description

Background technique [0001] Additive Manufacturing (AM) is a new production technology that transforms the way various objects are made. AM makes a three-dimensional (3D) solid object of virtually any shape from a digital model. Typically, this is accomplished by generating a digital model of the desired volume using computer-aided design (CAD) simulation software, and then slicing the virtual blueprint into very small digital cross-sections. These cross-sections are formed or deposited in an AM machine in a sequential layering process to generate 3D objects. AM has many advantages, including significantly reducing the time from design to prototype to commercial product. Operational design variations are possible. Multiple parts can be built in a single assembly. No tools required. A minimal amount of energy is required to make these 3D volumes. It also reduces the amount of waste and raw materials. AM also facilitates the production of parts with extremely complex geom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/118B33Y10/00
CPCB33Y10/00B29C64/40B29C64/393B29C64/118B29C64/106B33Y30/00B29C64/209B29C35/08B33Y40/10B33Y50/02B29K2101/12
Inventor 马尔维卡·比哈里萨蒂什·库马尔·加加拉克希米坎特·苏里亚坎特·波沃尔丹尼尔·凯莱布·布鲁克斯彼得·詹姆斯·朱伯
Owner SABIC GLOBAL TECH BV
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