A Method of Monitoring Arc Length Using Arc Voltage Signal
An arc voltage and signal monitoring technology, applied in arc welding equipment, manufacturing tools, welding equipment, etc., can solve problems such as restricting welding or additive manufacturing quality, affecting the effective energy of arc heat sources, etc., to achieve offline detection and online monitoring, Intuitive monitoring results and strong operability
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Embodiment 1
[0045] For MIG welding, a 6061 aluminum alloy plate with a thickness of 6mm is used as the substrate, and a 4043 aluminum alloy welding wire with a diameter of 1.2mm is used as the metal welding wire. The shielding gas is high-purity argon with a purity of 99.999%, and the flow rate of the shielding gas is 18L / min. First establish the mathematical model of the arc length: set the arc current output as 118A, the arc voltage output as 20.6V, the arc pulse frequency as 100Hz, and the traveling speed as 30mm / s. The aluminum alloy welding wire used is connected to the positive pole of the power supply, and the substrate is connected to the negative pole of the power supply. Install the base plate and fix it reliably horizontally, and clamp the MIG arc welding torch to the traveling mechanism of the 3D CNC work platform. Orient the MIG torch so that it is perpendicular to the plane of the substrate. Set the walking speed along the x direction to 30mm / s, the walking time to 1.55s, a...
Embodiment 2
[0049] For MIG welding, a 6061 aluminum alloy plate with a thickness of 6mm is used as the substrate, and a 4043 aluminum alloy welding wire with a diameter of 1.2mm is used as the metal welding wire. The shielding gas is high-purity argon with a purity of 99.999%, and the flow rate of the shielding gas is 18L / min. First establish the mathematical model of the arc length: set the arc current output as 146A, the arc voltage output as 22.0V, the arc pulse frequency as 100Hz, and the moving speed of the traveling mechanism as 30mm / s. The aluminum alloy welding wire used is connected to the positive pole of the power supply, and the substrate is connected to the negative pole of the power supply. Install the base plate and fix it reliably horizontally, and clamp the MIG arc welding torch to the traveling mechanism of the 3D CNC work platform. Orient the MIG torch so that it is perpendicular to the plane of the substrate. Set the walking speed along the x direction to 30mm / s, the ...
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