This research is a study of the performance of the robot arm gas covered welding welding AWS A5.18 ER 70S-6 type. Affect the steel grade SS400 and S45C steel designed to study the effects of using different types of welding electrical potential difference. Movement of the welding head Which is variable in the experiment. Experiments to probation welding. Plate size 15 x 10 cm and 6 mm thick, welded to the flat position welding head is perpendicular to the plate.
Experimental results are obtained from the physical and digital microscope to show the comparison of different welding current and weld surface. It can be seen that the weld by the speed of movement of the welding head at a speed of 30 centimeters per minute. And a voltage of 20 volt electrical steel sheets , the two species have the same thickness is 6 mm force a change in power from 90 to 200 amperes found that the welds. SS400 grade steel, electrical steel grades ranging from 90-160 amperes and S45C electricity from 90-200 amperes consistent weld . Size of weld penetration . The results of an experimental digital microscope It can be seen that the melting of the wire connecting the S45C steel SS400 grade steel that has been melted because of the hundreds that showed little porosity.