摘要
针对搅拌摩擦焊技术在厚板焊接时焊缝深层易出现组织疏松等焊接缺陷的问题,提出将超声振动能量导入到搅拌摩擦焊缝区,设计了超声搅拌摩擦焊接装置。利用ANSYS软件的多物理场耦合功能,将结构场与电场进行耦合,建立了整个超声搅拌摩擦焊系统的有限元计算模型并进行了模态分析和谐响应分析。计算结果表明,其共振频率为19.494kHz,与后来实际测量的共振频率19.56kHz接近。在施加1000V的正弦电压时,其振动输出端的最大振动位移发生在频率为20kHz左右,振幅约为72μm,满足设计要求。
According to FSW technology in the plate welding seam which is easy to appear problems such as osteoporosis in deep welding,put forward the ultrasonic vibration energy into FSW area,design the ultrasound friction stir welding device.Using ANSYS software multi-physical coupling function,coupling the structure field and the field coupling,establishing the whole ultrasound friction stir welding system finite element calculation model and the modal analysis harmonious response analysis.The numerical results show that the resonance frequency of 19.494 kHz,and then the actual measurement of the resonant frequency is close to 19.56 kHz.In 1 000 V sinusoidal voltage applied,the vibration of the maximum output vibration displacement occurred in about 20 kHz for frequency,amplitude is about 72 microns,and meet the design requirements.
出处
《制造技术与机床》
CSCD
北大核心
2012年第10期29-31,36,共4页
Manufacturing Technology & Machine Tool
基金
湖南省教育厅自然科学研究项目:铝合金的超声搅拌摩擦复合焊工艺研究(项目编号:11C1290)
