工艺与制造英文2022被引 2
采用热塑性树脂外层的碳纤维增强复合材料层板进行碳纤维增强复合材料/铝合金摩擦搅拌点焊
Friction Stir Spot Welding for CFRP/Al Using CFRP Laminated Composites with an Outermost Layer of Thermoplastic Resin
Kazuto TANAKA, Masashi KAWAKAMI, Katsuya Nishiguchi · Doshisha University
摘要整理
摩擦搅拌点焊（FSSW）是一种利用摩擦热熔融热塑性树脂粘合剂来焊接铝合金和碳纤维增强复合材料（CFRP）的新型连接方法。该工艺需要插入热塑性树脂作为粘合剂，因此需要开发更高效的工艺以缩短生产周期并提高CFRP与粘合剂间的界面强度。本研究开发了一种在CF/环氧预浸料最外层层压PA12树脂的复合材料层板用于FSSW应用。制备了三种层板：（1）PA12树脂在环氧树脂固化前熔融的共固化层板；（2）PA12树脂在环氧树脂固化后熔融的共固化层板；（3）通过压模成型工艺在CFRP成型后层压PA12树脂的层板。通过三点弯曲试验评估了各层板的力学性能，其最大弯曲破坏载荷与原始CFRP相当。随后对制备的层板与铝合金进行FSSW，并通过拉伸剪切试验评估焊接强度。采用PA12树脂在共固化过程中于环氧树脂固化前熔融的层板进行焊接，获得了12.1±0.6 kN的剪切强度，该强度高于热塑性树脂直接插入铝合金与CFRP之间时的FSSW强度，表明该层板设计方案能够显著改善焊接性能。
相关论文
A review of recent developments in natural fibre composites and their mechanical performance
Composites Part A Applied Science and Manufacturing · 2015
Non-invasive electrical and magnetic stimulation of the brain, spinal cord, roots and peripheral nerves: Basic principles and procedures for routine clinical and research application. An updated report from an I.F.C.N. Committee
Clinical Neurophysiology · 2015
Lignocellulosic biomass: a sustainable platform for the production of bio-based chemicals and polymers
Polymer Chemistry · 2015
Design for Additive Manufacturing: Trends, opportunities, considerations, and constraints
CIRP Annals · 2016
Nanoimprint Lithography: Methods and Material Requirements
Advanced Materials · 2007
Nanocomposites: synthesis, structure, properties and new application opportunities
Materials Research · 2009
← 返回论文库整理：复材站编辑部