AC arc welding system and method thereof
A welding system and AC arc technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of inability to effectively reduce energy, limited reduction of base metal heat input, and difficult to popularize welding wire, and achieve easy arc length. Adjustment, easy exchange of reversing, precise and controllable effect of wire feeding process
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[0023] The present embodiment will now be described with reference to the drawings. (Examples are welding of butt welds for 1mm thick 3A21 aluminum alloy plates)
[0024] A specific example of the present invention is a low-energy input arc welding system structure composition such as figure 1 As shown, there are two parts as a whole: welding system and wire feeding system.
[0025] The welding system includes main circuit part 1 and control circuit part 2 with TMS320F2812DSP as the core. The input voltage of the main circuit is three-phase 380V; the input rectifier 1.1 adopts Fuji rectifier bridge rectifier, the model is FUJ 6RI100G-160; the primary inverter circuit 1.3 adopts a half-bridge inverter structure, which is composed of two IGBTs of model BSM150GB120DN2; intermediate frequency transformer 1.4 Using ultra-microcrystalline magnetic core, the transformation ratio is 15:2; the secondary filter 1.6 uses the magnetic core saturation inductance, the inductance is about 30μH;...
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