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TECHNICAL SPECIFICATIONS MANUAL
TIG TORCH CONNECTIONS AND POLARITY CHARACTERISTICS
CONNECTION DIAGRAMS FOR GAS COOLED TORCHES 1 PIECE CABLE ASSEMBLY
2 PIECE CABLE ASSEMBLY
Power Source
Power Source Power cable adapter required
+
Shield gas supply
Shield gas supply
+
CONNECTION DIAGRAM FOR WATER COOLED TORCHES NOTE: RegulatorFlowmeter
1 Quart (1 liter) per min. flow rate Power Source
Water in though water line
TIG TORCH
Water out though power cable
Power cable adapter required
WATER OUT
Coolant Recirculator
+
Shield gas supply
WATER IN ARGON IN
CHARACTERISTICS OF CURRENT TYPES FOR GAS TUNGSTEN ARC WELDING When TIG welding, there are three choices of welding current. They are: Direct Current Straight Polarity, Direct Current Reverse Polarity, and Alternating Current with High Frequency stabilization. Each of these has its applications, advantages, and disadvantages. A look at each type and its uses will help the operator select the best current type for the job. The type of current used will have a great effect on the penetration pattern as well as the bead configuration. The diagrams below, show arc characteristics of each current polarity type. TIG welding with ACHF (alternating current high TIG welding with DCRP (direct current reverse TIG welding with DCSP (direct current straight frequency) combines the good weld penetration polarity) produces good cleaning action as the polarity) produces deep penetration because it on the negative half cycle with the desired argon ions f lowing towards the work strike with concentrates the heat in the joint area. No cleaning action of the positive half cycle. High sufficient force to break up oxides on the surface. cleaning action occurs with this polarity. frequency reestablishes the arc which breaks each half cycle. DC TIG DC TIG AC TIG POWER SUPPLY
POWER SUPPLY
+
-
POWER SUPPLY
+
-
-
S
S ION
-
-
-
-
S
-
ION
ONS
ION
CTR
+ + +
ELE
ONS
ONS
+
CTR
CTR
+ + +
ELE
ELE
+ + +
+/-
+
-
-
-
-
+/-
-
CURRENT TYPE
DCSP
CURRENT TYPE
DCRP
CURRENT TYPE
ACHF
ELECTRODE POLARITY
Electrode Negative
ELECTRODE POLARITY
Electrode positive
ELECTRODE POLARITY
Alternating
OXIDE CLEANING ACTION
No
OXIDE CLEANING ACTION
Yes
OXIDE CLEANING ACTION
Yes (once every half cycle)
HEAT BALANCE IN THE ARC
70% at work end 30% at electrode end
HEAT BALANCE IN THE ARC
30% at work end 70% at electrode end
HEAT BALANCE IN THE ARC
50% at work end 50% at electrode end
PENETRATION PROFILE
Deep, narrow
PENETRATION PROFILE
Shallow, wide
PENETRATION PROFILE
Medium
ELECTRODE CAPACITY
Excellent
ELECTRODE CAPACITY
Poor
ELECTRODE CAPACITY
Good
FORM #116
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