Welding sound database for benchmark metal transfer modes in gas metal arc welding

This database contains the synchronized sound, current and voltage signals measured at different benchmark transfer modes in gas metal arc welding. The benchmark metal transfer modes include three groups, i.e., contact, free flight and controlled. In each group, there are four modes. In Group 1 (contact transfer), the four modes are pure liquid bridge (1b2), forced contact (1c3), repel globular (1g4) and gasless explosive (1e10). In Group 2 (free flight transfer), the four modes are repel globular (2g4), forces spray (2s2), pure stream (2t2) and gasless explosive (2e10). In Group 3 (controlled transfer), the four modes are pure contact (3c2), forced pulse (3p3), projected spray (3s7) and gasless explosive (3e10). Four samples were welded at each mode, hence there are a total of 3 (group) × 4 (modes in each group) × 4 (sample for each mode) = 48 samples in the database. In the experiments, a Lincoln Electric PowerWave C300 welder was used with the torch being positive and the negative cable being connected to the workbench. During welding, the torch was fixed and the workbench was moving at a travel speed that was controlled by a servo motor. A GRAS 40PH free field microphone was hanged 0.6 m above the weld pool to record the welding sound. The microphone was connected to an NI 9234 Sound and Vibration module. An LEM HTA 300-S current sensor was installed around the torch cable to measure the welding current through the torch. The current sensor was connected to an NI 9215 Analogue Voltage Input module. Both the NI 9234 and NI 9215 modules were installed in an NI cDAQ 9185 chassis, which was connected to a desktop computer. The computer and the data acquisition system was in the black cabinet on the right of the photo in Fig. 6 and therefore is not shown here. A software with a user interface was developed with LabWindows/CVI 2017 to acquire, display and store the signals in synchronisation. The sampling rate for the sound and current/voltage signals are 51.2 kHz and 3.2 kHz, respectively. In the experiments, the pure argon was used as the shielding gas and the diameter of the feeding wire was 0.9 mm. The workpiece metal was carbon steel.

本数据库收录了熔化极气体保护电弧焊（Gas Metal Arc Welding）不同典型熔滴过渡模式下采集得到的同步声、电流及电压信号。典型熔滴过渡模式分为接触过渡、自由飞过渡与受控过渡三大类，每类包含4种具体模式：接触过渡组（第1组）含纯液桥过渡（1b2）、强制接触过渡（1c3）、排斥球状过渡（1g4）及无气爆炸过渡（1e10）；自由飞过渡组（第2组）含排斥球状过渡（2g4）、强制喷射过渡（2s2）、纯射流过渡（2t2）及无气爆炸过渡（2e10）；受控过渡组（第3组）含纯接触过渡（3c2）、强制脉冲过渡（3p3）、投影喷射过渡（3s7）及无气爆炸过渡（3e10）。每种过渡模式下均完成4组焊接试样采集，故本数据库总计包含3（组数）×4（每组模式数）×4（单模式试样数）=48个样本。本实验采用林肯电气（Lincoln Electric）PowerWave C300焊机，采用焊枪接正极、负极电缆连接至工作台的接线方式。焊接过程中焊枪固定不动，工作台由伺服电机控制以恒定行走速度移动。在熔池上方0.6m处悬挂GRAS 40PH自由场麦克风采集焊接声信号，该麦克风连接至NI 9234声振采集模块；在焊枪电缆外侧安装LEM HTA 300-S电流传感器，以采集流经焊枪的焊接电流，该传感器连接至NI 9215模拟电压输入模块。NI 9234与NI 9215模块均安装于NI cDAQ 9185机箱内，该机箱连接至台式计算机。计算机与数据采集系统位于图6照片右侧的黑色机柜内，故未在本图中展示。本研究采用LabWindows/CVI 2017开发了带用户界面的专用软件，用于同步采集、显示与存储上述信号。声信号与电流/电压信号的采样率分别为51.2kHz与3.2kHz。本实验采用纯氩气作为保护气，送丝直径为0.9mm，工件材质为碳钢。

搜集汇总

背景与挑战

背景概述

该数据集包含同步记录的焊接声音、电流和电压信号，涵盖气体金属弧焊接中的12种基准金属转移模式，共48个样本。数据采集使用了高精度的声音和电流/电压传感器，采样率分别为51.2 kHz和3.2 kHz，适用于声学和信号处理研究。