Arc Welding (AWS) Mini
Inverters for Welding > Arc Welding (AWS) Mini
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The Arc Welding System mini is a 100V/50A continuous current mode switching power generator with an
embedded header driver. Included with the machine is one ignition coil to be placed near the target. The
machine can drive up to two ignition coils.
The most important and unique characteristic of this machine is that it allows the welding to take place
without any added material (tin or brazing alloys); instead, the welding takes place due to the fusion
of the parts.
This method is an improvement versus the conventional tin immersion
method in that it works without mechanically touching the parts being
welded and thus avoiding any mechanical stress or disturbance. More
over, since the welding process takes less than 50ms the thermal stress
is reduced to an area of 1mm2.
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AWS mini is enclosed in a case and is controlled by a microprocessor to permit the connectivity with
robotized systems to obtain perfect synchronization for highly automated welding systems.
AWS mini also monitors every single welding (shot) by storing in the local memory the waveform profile
of current and voltage and is communicated via the serial port to the host system to be analyzed.
The most popular applications for this technology are:
> Relay terminals
> Solenoid terminals
> Lamps terminal
> Thermocouple
Controlled via RS232 serial line by a PC/PLC or CRS remote control unit (Part Number: REM305 or REM306)
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AWS Mini Specifications |
Unit of Measurement |
CWA-A01 Air 50A
100V / 50%
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| Max welding output voltage (Max load) |
Volt |
100 |
| Max output current (Peak value) |
Ampere |
50 |
| Continuous duty cycle |
% |
50 |
| Short term (10 cycles) duty cycle |
% |
100 |
| Minimum primary current requirement |
A/ac |
16 |
| Adjustment precision (In line conforming with EN50160) |
% |
2 |
| Max number of heads |
each |
2 |
| Number of welding profile Phases |
each |
3 |
| Max time for each phase |
Ms |
999 |
| Working frequency on the primary stage |
KHz |
25 |
| Working temperature |
°C |
40 |
| Interface RS232 |
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Present |
| Short circuit protection |
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Autolimit |
| Overheating protection |
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Present |
| Graphic memorization A + V real time |
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Present |
| Mains voltage |
Vac |
400 |
| Mains frequency |
Hz |
50 - 60 |
| Cos § |
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1 |
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The welding process is as follows:
> One cathode tungsten (negative polarity) is placed at 0.6mm from the target.
> The target to be welded is connected to the anode (ground).
> The machine through the control of the embedded header driver brings up the voltage to 15000V and ionizes the gas (air or inert gas) between anode and cathode.
> When the spark is started the power supply generator drives the current to generate and maintain the plasma arc according with the time and current parameters set in the memory.
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