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A controlled cold deposition 3D printing method for peek materials

A 3D printing and 3D printer technology, applied in the field of 3D printing, can solve the problem of crystallinity of PEEK material that has not been considered, and has not raised the crystallinity of PEEK material, etc., and achieves the effect of simple process

Active Publication Date: 2019-09-17
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current 3D printing methods for PEEK materials on the market have never considered the crystallinity of PEEK materials after forming, and have not proposed corresponding methods to control the crystallinity of PEEK materials, so as to obtain PEEK parts with different properties.

Method used

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  • A controlled cold deposition 3D printing method for peek materials
  • A controlled cold deposition 3D printing method for peek materials

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] A controlled cold deposition 3D printing method for PEEK materials, comprising the following steps:

[0019] 1) Refer to figure 1 , the overall temperature control system 1 is used to heat the working cavity 2 of the 3D printer as a whole, and the air circulation system 3 is used to circulate the internal airflow of the working cavity 2 of the 3D printer, and the 3D printer is made to work under the heat preservation effect of the heat preservation system 4 The inner cavity 2 forms the required stable global temperature field;

[0020] 2) Then utilize the local temperature measurement system 6 and the local cooling system 7 on the 3D printing head 5 to cooperate with the local temperature disperser 8 to form a real-time and controllable local rapid cooling field near the 3D printing head 5, and the local cooling system 7 Adopt air cooling, liquid coo...

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Abstract

A method for controlled cold deposition 3D printing facing a polyetheretherketone (PEEK) material: first forming a desired stable global temperature field in a 3D printer inner working cavity (2); next forming a real-time, controllable local quick cooling field near a 3D printing head (5); 3D printing a PEEK material (11) such that the PEEK material (11) experiences different cooling rates and steady-state temperatures during extrusion, thereby forming different crystallinities at said locations; or controlling the moving speed and printing path of the 3D printing head (5) that has been heated to a high temperature within the area so as to form a PEEK material (11) having different crystallinities in different printing areas; finally, directly using a PEEK part (13) or performing corresponding heat treatment according to requirements. A PEEK part having different crystallinities and different performances is printed by means of the 3D printing method of using global temperature control, local quick cooling and local printing processing parameter variation, thereby meeting different application requirements, while processing is simple.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a controlled cold deposition 3D printing method for PEEK materials. Background technique [0002] Polyetheretherketone (polyether-ether-ketone, PEEK), is currently recognized as one of the top performance thermoplastics, it has excellent mechanical properties, heat resistance, friction resistance, chemical resistance, water decomposition resistance , heat aging resistance, fatigue resistance, creep resistance, radiation resistance and weather resistance, etc., have been used in various fields as a lightweight high-performance material with great potential to replace metal materials, especially its Excellent biocompatibility and wear-reducing and wear-resistant properties make it one of the ideal materials for bioprosthetic implants. [0003] Fused deposition 3D printing technology is a fully digitally driven macro / microstructure integrated manufacturing process, which has th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/118B29C64/393B29C64/295B29C64/20B33Y10/00B33Y50/02B33Y30/00B29K71/00
Inventor 杨春成曹毅石长全李涤尘
Owner XI AN JIAOTONG UNIV
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