影响电弧超声激发强度的参数

Factors influenced arc-excited ultrasonic intensity

关键词:  电弧超声  声发射  激发特性

Key words:  arc-excited ultrasonic  sound emission  excitation character

摘要:

为了加深对电弧超声激发的认识,更好的控制电弧超声,研究了影响电弧超声激发强度的参数。首先搭建了一套电弧超声焊接系统信号检测平台,用以记录电弧超声焊接过程中电信号与声信号。结果表明,该系统能够有效的记录试验过程中的信号变化。在此基础上设计试验,测定不同参数条件下,空气中和试板上的电弧超声信号的强度变化趋势,最终得出激励能量是影响电弧超声激发强度的主要因素,并建立了激励能量与激发电弧超声强度间的关系,这为研究电弧超声改善焊接接头组织和性能的作用机制提供了试验数据。

Abstract:

To enhance the understanding and control of arcexcited ultrasonic, factors that influence the arc-excited ultrasonic intensity were studied.Firstly, a welding information acquisition system was built to track the signal variations during the welding process, and it was effective to record the signal.Secondly, the variations of the arc-excited ultrasonic intensity in the air and the workpiece were measured under different parameters, and it was concluded that exciting power is the main factor to influence the excited ultrasonic intensity, and the relation curve was given, which provided useful experiment data for the mechanism study of arc-excited ultrasonic to improve the quality of welded joint.