| 摘要: |
| 为探究不同工况条件下碳纤维增强聚醚醚酮（C-PEEK）复合材料制件的摩擦与磨损性能，通过熔融沉积3D打印进行高精度C-PEEK复合材料制件，采用对置往复摩擦磨损试验机对不同配对副、外加载荷、滑动速度、接触时长和温度条件下的C-PEEK样件进行分析。结果表明，随着接触时长、滑动速度以及外加载荷的增加，C-PEEK材料的磨损量虽然会有所提升，但摩擦系数总体均维持在0.3及以下，具有较好的耐磨性。在滑动速度为15 mm/s、载荷为30 MPa、试验时长为1 h时，随温度的升高，C-PEEK材料磨损量也会增大，但摩擦系数逐渐减小。此外，温度为200 ℃时GCr15钢球+C-PEEK摩擦副间的摩擦系数可低至0.15，展示了C-PEEK复合材料良好的摩擦磨损性能。 |
| 关键词: 3D打印；聚醚醚酮复合材料；摩擦磨损性能；摩擦系数；磨损量 |
| 基金项目: |
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| Friction and Wear Properties of 3D Printed Carbon Fiber Reinforced Polyetheretherketone Composites |
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Xu Wenting1, Li Zhiyong1, Chao Bingxuan1, Ma Siqi2, Li Quanhong2, Wang Meirong3, He Peigang2
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1. Avic Changhe Aircraft Industry(Group) Co., Ltd., Jingdezhen 333000;2. Institute for Advanced Ceramics, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080;3. National Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001
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| Abstract: |
| To explore the friction and wear properties of carbon fiber-reinforced polyetheretherketone(C-PEEK) composite specimens under different operating conditions, high-precision C-PEEK composite specimens were fabricated using fused deposition modeling(FDM) 3D printing. The specimens were then subjected to reciprocating friction and wear tests using a pin-on-disc tribometer under various pairing counterparts, external loads, sliding velocities, contact durations, and temperature conditions. The results showed that, although the wear volume of C-PEEK material increased with increasing contact duration, sliding velocity, and external load, the friction coefficient remained generally below 0.3, indicating good wear resistance. Under the conditions of a sliding velocity of 15 mm/s, a load of 30 MPa, and a test duration of 1 h, the wear volume of C-PEEK material increased with temperature elevation, while the friction coefficient gradually decreased. Additionally, at a temperature of 200 ℃, the friction coefficient between GCr15 steel ball and C-PEEK friction pair could be as low as 0.15, demonstrating the excellent friction and wear properties of C-PEEK composite material. |
| Key words: 3D printing；polyetheretherketone composite materials；friction and wear performance；friction coefficient；wear amount |
