Welding Processes And Features - Kemppi Master 315 Operating Manual

6.3 Welding processes and features

Master 315
A
Arc break
Determines the point where the arc is extinguished in relation to the arc length in MMA welding. The pur-
pose is to optimize the welding termination for each electrode type to prevent the arc from being acci-
dentally extinguished during welding and to avoid burn marks to the weld piece when the welding is
stopped.
Arc force
Adjusts short circuit dynamics (roughness) of MMA welding by changing, for example, current levels.
Arc time
Tells how long the welding arc has been on.
Auto pulse
TIG welding process, where the welding current alternates between two current levels: base current and
pulse current. Only welding current needs to be adjusted and pulse parameters are preset automatically.
Used for optimizing the arc characteristics for desired welding applications.
B
Base current
The lower current level of the pulse cycle. In TIG welding, its main tasks are to cool down the weld pool
and to maintain the arc.
D
DC TIG
Direct current TIG welding process, where the polarity of the electrode is either positive or negative
throughout the welding process. Negative polarity (DC-) allows high penetration, whereas positive polarity
(DC+) is used only in special applications.
H
Hot start
Welding function that uses higher welding current at the start of the weld. After the Hot start period the
current drops to normal welding current level. The values for Hot start current level and its duration are
preset manually. This facilitates the start of the weld especially with aluminum materials.
L
Lift TIG current
Contact current in the beginning of Lift TIG ignition.
Lift TIG ignition
Ignition mode in TIG welding. In Lift TIG ignition you briefly touch the work piece with the electrode, then
press the trigger and lift the electrode to a small distance from the work piece. The Lift TIG ignition must
be activated in the control panel. Also known as "Touch ignition" or "Contact ignition".
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Master 315
Operating manual - EN
1921530 / 2052