Butt | Spot | Projection | Seam | Special Purpose

PROJECTION WELDING FOR STAINLESS STEEL Tickness "T"of Thinest outside piece Electrode face Diameter "D" Net Electrode Force TIME Welding Current WELDING INTERVAL (HOLD WELDING) AT 50 HZ. M.M D(M.M) N CYCLES CYCLES A  0.35 9.5 1350 6.00 15.00 4500 0.50 13 2270 8.00 15.00 4750 0.80 13 3180 13.00 15.00 5750 1.00 13 3180 17.00 15.00 6000 1.4 16 5500 21.00 15.00 7500 2.00 16 8600 25.00 25.00 10000 2.30 20 8600 25.00 25.00 10000 3.00 12.5 12700 25.00 40.00 13000 3.20 14.3 12700 25.00 40.00 14000   Note   Types of steel- 309,310, 316, 317,321,347, and 349- (Non hardenable; carbon content- 0.15 percent)   Material should be free from scale oxides, paint, grease and oil   Data based on thickness of thinner sheet, and for two thickness only. Maximum ratio between two thickness 3 to 1  Electrode materail                     Class2                  Or         Class 12  Minimum Conductivity              75 Percent                         35 percent IACS (Copper alloy)  Maximum Hardness                  75                                     98 Rockwell "B"

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