Lincoln Electric High-Speed and High-Deposition Welding manual Tandem Migtm

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APPLICATION

W A V E F O R M C O N T R O L T E C H N O L O G Y T M

Tandem MIGTM

High-Speed and High-Deposition Welding

Low cost and profitability are key business objectives, whether the product offering is a wheel, a water tank, or a truck frame. It used to be thought that on the road to lower cost, quality had to be sacrificed. That’s no longer true with Tandem MIG welding.

The following factors affect pricing per welded part:

Capital Equipment

Overhead

Labor cost

Part production rates

Lincoln Tandem MIG welding systems are designed to produce quality welds at welding speeds well above accepted single wire processes. The unique engineered output control of the Tandem MIG dual wire process is designed to overcome the barriers limiting the travel speed capabilities of conventional single wire GMAW processes.

Fast travel speeds on thin

lap welds increase the number of parts per day.

Increased deposition on thicker materials reduces welding time and distortion.

a d v a n t a g e s

INCREASED TRAVEL SPEEDS

The combined contribution of two separate welding arcs in one weld pool provides the control to overcome the lack of follow tendencies of single arc processes.

INCREASED DEPOSITION

Two small diameter Tandem MIG wire electrodes provide higher melt-off rates per current drawn when compared to a single larger diameter wire electrode at similar current draws.

IMPROVED THROUGHPUT

Higher travel speeds and higher deposition rates reduce part welding time cycles.

 

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© Copyright 2005 The Lincoln Electric Company. All rights reserved.

 

 

NX-3.70 10/05

 

 

 

 

 

 

 

 

 

 

 

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Contents Tandem Migtm Tandem MIG What Is It?How Does It Work? Flat and Horizontal Lap Welds 1.5 mm 5 mm Using Tandem MIGFlat and Horizontal Fillet Welds 3 mm 6 mm Joggle Joints 1.5 mm 4 mmBevel and V Groove Joints Flat and Horizontal Fillet Welds 6 mm and LargerU Groove Butt Welds Earth Moving Equipment Heavy Plate FabricationProblem Single Wire Gmaw Better Weld Metal Follow CharacteristicsSolution Tandem MIG Comparing High-Speed Tandem MIGTravel Speed Comparison Comparing High-Deposition Tandem MIGHigher Deposition rates Horizontal Fillet Weld Reduced Heat Input and Improved Bead ProfilesDeposition Rate Comparison Trail Arc Lead ArcTorch Positioning Work Lead Connection Shielding GasJoint Selection Configuring Tandem MIG Models AD1201 1 and AD1201 Configuring Tandem MIGLincoln Welding Systems Featuring Tandem MIG Power Feed 10R Wire FeederPower Wave 655R Power Wave 455MAccu-Pak SuperArc/SuperGlideAccu-Trak