Lincoln Electric C2.410 manual High-Deposition Welding, Jetweld LH-3800 E7028H8

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High-Deposition Welding

High deposition applications includes groove, fillet, lap and corner welds in 3/16” and thicker plate welded with the work level or slightly downhill. These joints are capable of holding a large molten pool of weld metal as it freezes.

These welds are made with Jetweld electrodes because the high iron powder content in the coating produces high deposit rates to fill joints in the shortest time for economical welding.

Procedures

Lap welds . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11 Corner Welds . . . . . . . . . . . . . . . . . . . . . . . . . page 11 Groove Welds . . . . . . . . . . . . . . . . . . . . . . . . page 12 Flat Fillet Welds . . . . . . . . . . . . . . . . . . . . . . . page 14 Horizontal Fillet Welds . . . . . . . . . . . . . . . . . . page 15

Alternate Electrodes

When desired, the following alternate electrodes can be used with similar procedures:

Recommended	Alternate
Jetweld 1 (E7024-1)	Jetweld 3 (E7024)
Jetweld 1 or 3 (E7024)	Jetweld LH-3800 (E7028H8)

Jetweld Operating Techniques

Polarity and Current – Use AC for fast welding speeds, high deposit rates, and good arc characteristics. DC can be used but the resulting arc blow may complicate control of the molten puddle.

Optimum current for most jobs is 5-10 amps above the center of the electrodes range. Do not exceed the center of the range for x-ray quality deposits.

Use a Drag Technique – Tip the electrode 10 to 30° in the direc- tion of travel and make stringer beads. Weld with the electrode end lightly dragging on the work to force the molten metal out from under the electrode tip allowing adequate penetration. The smooth welds look almost like automatic welds.

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Contents Stick Electrode Welding Guide Page Table of Contents Welding Procedures Out-Of-Position Welding Vertical and OverheadVertical Up Techniques for Fillet and Groove Welds Vertical Up Groove Welds Vertical Down WeldsWeld Vertical Up Fillet Welds160 Polarity High-Deposition Welding Jetweld LH-3800 E7028H8Wrong End view Side view Corner Welds Jetweld 2 E6027 Amps. AC at 14/Min Groove WeldsGroove Welds First Pass Deep Groove Welds Joint a Pass E6011T Over E6011 Root PassesFlat Fillet Welds Plate Size T 14 ga 12 ga 10 ga No. of Passes Leg Size LFt. of Weld/Hr Lbs. of Elec./Ft. 049 082 117 162 WeldHorizontal Fillet Welds Welding Inclined Plate 180 Downhill Angle degPolarity Arc Speed In./Min.3 Lbs. of Elec./Ft. High Speed Welding Sheet Metal AlternatePage Edge Welds Fillet Welds Lap WeldsDiameter Position Current Amps 110 155 PolarityCurrent Amps 120 170 Polarity 018 028Burnthrough Spot Welds Roof Decking to Beam Roof Beam Flange Roof Deck Thickness 22 ga 20 ga 18 ga 16 gaLow Hydrogen Welding E7018-1Multipass Page Overhead Groove Welds Diameter Current Amps 155 PolarityOverhead Fillet Welds Also see Out-of Position Procedures, No. of Pass Leg Size LArc Speed In./Min Ft. of Weld/Hr Lbs. of Elec./Ft. No. of Passes Leg Size LHorizontal Groove Welds Back gouge first bead as needed Plate Size T No. of PassesDiameter Current Amps 230 200 Polarity Arc Speed In./Min Ft. of Weld/Hr Lbs. of Elec./Ft. of WeldUse steel backing as on 230 200 PolarityWith E7028 Electrode 132 195 272 409 727 With E7018 Electrode275 350 260 335 157 236 320785 Ft. of Weld/Hr.2 Lbs. of Elec./Ft.203 335 Minimum Preheat and Interpass Temperature1 Stick Electrode Typical Operating Procedures Out-of-Position GroupHigh Deposition Group High Speed GroupLow Hydrogen Group Low Hydrogen, Low Alloy Steel GroupFleetweld Jetweld Fleetweld 5P Shield-Arc Fleetweld 5P+Fleetweld Fleetweld 35LS Jetweld Shield-Arc 70+ Shield-Arc HYP+Electric Shock can kill Fumes and Gases can be dangerous For Electrically powered Electric and Magnetic Fields Stick C2.410 12/04