摘要
钎焊铝蜂窝板由于其密度小、强度高、减振降噪等优势,在轨道交通车辆制造行业应用越来越广泛。由于轨道交通车辆部件一般结构尺寸较大,多数超出单一铝蜂窝板的板幅,因此需将多块铝蜂窝板拼焊使用。本文提出了三种铝蜂窝板拼焊接头,即平对接拼焊接头、内置铝蜂窝衬垫拼焊接头、T型铝蜂窝衬垫拼焊接头。以规格为25-2-2-0.2×6的铝蜂窝板为例,按照相关标准,通过试验测试了三种铝蜂窝板拼焊接头抗拉强度、抗压强度、弯曲强度、滚筒剥离强度等机械性能,并与单一铝蜂窝板进行对比,得出三种拼焊接头对铝蜂窝板机械性能的影响,对铝蜂窝板拼焊设计给出指导建议。
With the advantages of low density,high strength,vibration and noise reduction,brazed aluminum honeycomb is more and more widely used in railway vehicles manufacturing.As the railway vehicles part structure size is usually larger than single aluminum honeycomb panel,brazed aluminum honeycomb needs to be tailor-welded.This paper puts forward three tailor-welded joints of brazed aluminum honeycomb,including fl at tailor-welded joints,built-in aluminum honeycomb backing tailor-welded joints,and T-shaped aluminum honeycomb backing tailor-welded joints.Taking the brazed aluminum honeycomb test sample with specifi cation of 25-2-2-0.2×6 as an example,the mechanical properties of these three tailor-welded joints of brazed aluminum honeycomb are tested according to the relevant standards,such as extension strength,compressive strength,fl exural strength,drum peeling strength.It studies the mechanical property effect of three tailor-welded joints,and gives suggestions for the design of aluminum honeycomb tailor-welding.
作者
于洪传
涂勤书
李文化
YU Hongchuan;TU Qinshu;LI Wenhua(CRRC Qingdao Sifang Co.,Ltd.)
出处
《中国标准化》
2023年第7期201-205,共5页
China Standardization
关键词
轨道车辆
钎焊铝蜂窝
拼焊接头
轻量化
机械强度
railway vehicles
brazed aluminum honeycomb
tailor-welded joints
lightweight
mechanical strength
