Lincoln Electric S350 manual Common Welding Procedures, Making a Weld, NON-SYNERGIC Welding Modes

B-5 OPERATION B-5

COMMON WELDING PROCEDURES

WARNING

MAKING A WELD

The serviceability of a product or structure utiliz- ing the welding programs is and must be the sole responsibility of the builder/user. Many variables beyond the control of The Lincoln Electric Company affect the results obtained in applying these programs. These variables include, but are not limited to, welding procedure, plate chemistry and temperature, weldment design, fabrication methods and service requirements. The available range of a welding program may not be suitable for all applications, and the build/user is and must be solely responsible for welding program selec- tion.

Choose the electrode material, electrode size, shield- ing gas, and process (GMAW, GMAW-P etc.) appro- priate for the material to be welded.

Select the weld mode that best matches the desired welding process. The standard weld set shipped with the Power Wave S350 encompasses a wide range of common processes that will meet most needs. If a special weld mode is desired, contact the local Lincoln Electric sales representative.

All adjustments are made through the user interface. Because of the different configuration options your system may not have all of the following adjustments. See Accessories Section for Kits and Options avali- able to use with the Power Wave® S350.

Definition of Welding Modes

NON-SYNERGIC WELDING MODES

•A Non-synergicwelding mode requires all welding process variables to be set by the operator.

SYNERGIC WELDING MODES

•A Synergic welding mode offers the simplicity of single knob control. The machine will select the cor- rect voltage and amperage based on the Wire Feed Speed (WFS) set by the operator.

Basic Welding Controls

Weld Mode

Selecting a weld mode determines the output charac- teristics of the Power Wave power source. Weld modes are developed with a specific electrode materi- al, electrode size, and shielding gas. For a more com- plete description of the weld modes programmed into the Power Wave® S350 at the factory, refer to the Weld Set Reference Guide supplied with the machine or available at www.powerwavesoftware.com.

Wire Feed Speed (WFS)

In synergic welding modes (synergic CV, GMAW-P), WFS is the dominant control parameter. The user adjusts WFS according to factors such as wire size, penetration requirements, heat input, etc. The Power Wave® S350 then uses the WFS setting to adjust the voltage and current according to settings contained in the Power Wave.

In non-synergic modes, the WFS control behaves like a conventional power source where WFS and voltage are independent adjustments. Therefore, to maintain proper arc characteristics, the operator must adjust the voltage to compensate for any changes made to the WFS.

Amps

In constant current modes, this control adjusts the welding amperage.

Volts

In constant voltage modes, this control adjusts the welding voltage.

Trim

In pulse synergic welding modes, the Trim setting adjusts the arc length. Trim is adjustable from 0.50 to

1.50.1.00 is the nominal setting and is a good start- ing point for most conditions.

UltimArc™ Control

UltimArc™ Control allows the operator to vary the arc characteristics. UltimArc™ Control is adjustable from –10.0 to +10.0 with a nominal setting of 0.0.

POWER WAVE® S350