Butt | Spot | Projection | Seam | Special Purpose

SEAM WELDING - LOW CARBON STEEL Thickness 'T' Thinnest outside piece Electrode width and Shape Electrode Force Net ON Time OFF Time for Maximum speed Maximum Weld Speed Welds per MM Welding Current (Approx.) Minimum contacting Overlap MM Width min MM Electrode MAX MM N Cycles (50per sec.) CYCLES M/Min CM Amps MM 0.25 10 5 1780 2 1 2.0 6 8000 10 0.50 10 5 2450 2 2 2.0 5 11000 11 0.80 13 6 3100 3 2 2.0 4 13000 13 1.00 13 6 4000 3 3 1.7 3.0 15000 13 1.30 13 8 4670 4 3 1.7 3.0 16500 14 1.60 13 8 5350 4 4 1.6 3.0 17500 16 2.00 16 10 6670 6 5 1.4 2.0 19000 18 2.40 16 11 7560 7 5 1.3 2.0 20000 19 2.80 19 13 8670 9 6 1.2 2.0 21000 21 3.00 19 13 9780 11 6 1.0 1.7 20000 22   Note   TYPE OF STEEL-SAE-1010   MATERIAL SHOULD BE FREE FROM SCALE OXIDES, PAINT, GREASE AND OIL   WELDING CONDITIONS DETERMINE BY THICKNESS OF THINIST OUT SIDE PIECE "T"   DATA FOR TOTAL THICKNESS OF PILE UP NOT EXCEEDING "4t" MAXIMUM RATIO BETWEEN TWO THICKNESS 3 TO1   ELECTRODE MATERIAL CLASS 2   MINIMUM CONDICTIVITY 75% OF COPPER   MINIMUM HARDNESS 75 ROCKWELL "B"   MINIMUM WELD SPACING IS THAT SPACING FOR TWO PIECS FOR WHICH NO SPECIAL PRECAUTIONS NEED BE TAKEN   COMPENSATE FOR SHUNTED CURRENT EFFECT OF ADJACENT WELDS FOR THREE PIECES INCREASE SPACING 30% PERCENT   THE ABOVE DATAS ARE FOR GENERAL GUIDENCE ONLY

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