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不同的聚合物棒的旋转摩擦接,含有金属粉末

Chil-Chyuan Kuo^1,2,3,4, Hong-Wei Chen¹, Song-Hua Huang⁵

¹Department of Mechanical Engineering, Ming Chi University of Technology, No. 84, Gungjuan Road, Taishan District, New Taipei City 24301, Taiwan.

|November 25, 2023

概括

旋转摩擦接 (RFW) 连接比3D打印更大的聚合物组件. 用金属粉末接聚乳酸 (PLA) 在45°C时增强了57.5%的强度,提高了表面硬度.

科学领域:

材料科学材料科学材料科学
制造业工程制造工程
聚合物科学聚合物科学

背景情况:

三维打印 (3D打印) 在制造大型元件时受制造量限制.
旋转摩擦接 (RFW) 为连接3D打印部件以创建更大的结构提供了一个潜在的解决方案.
对含有金属粉末的不同聚合物棒的RFW的研究很少.

研究的目的:

使用RFW调查含有金属粉末的不同聚合物棒的接质量.
评估RFW对聚乳酸 (PLA) 基复合材料的机械性能和表面硬度的影响.
建立一个技术数据库,以优化聚合物金属粉末复合材料的RFW环境温度.

主要方法:

从聚乳酸 (PLA) 制造的样本与铜粉和PLA与粉被连接使用RFW在机上.
进行了曲试验,以评估接接头的屈曲强度.
进行了Shore A表面硬度测试,以评估接口和基材硬度.
在RFW期间的高峰温度被记录在不同的材料组合中.

主要成果:

接部件 (PLA和PLA-粉) 的曲强度在45°C时增加了约57.5%.
接接口的表面硬度优于3D打印的部件,PLA-PLA接显示了最高的平均硬度.
接接头表面硬度比基材高~3%,而受热影响区域低~3%.
峰值温度达到了160°C (PLA-Al粉) 和144°C (PLA-Cu粉).

结论:

射频钢丝是有效的聚合物金属粉末复合材料的连接,使得更大的组件制造超出3D打印的限制.
在RFW过程中优化环境温度显著提高机械性能,特别是曲强度.
该研究提供了有价值的数据,用于选择合适的环境温度,用于含有金属粉末的不同聚合物棒的RFW.

关键词:

粉末的粉是什么粉末是什么环境温度环境温度环境温度铜粉是一种铜粉.聚酸聚酸是什么意思旋转摩擦接的接方式

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