TECHNICAL SPECIFICATIONS MANUAL TIG TORCH …

1 TECHNICAL SPECIFICATIONS MANUAL TIG TORCH CONNECTIONS AND. POLARITY CHARACTERISTICS. CONNECTION DIAGRAMS FOR GAS COOLED TORCHES. 1 PIECE 2 PIECE. CABLE ASSEMBLY CABLE ASSEMBLY. Power Source Power Source Power cable adapter Shield Shield required gas gas +. supply + supply CONNECTION DIAGRAM FOR WATER COOLED TORCHES. NOTE: Regulator- 1 Quart (1 liter) per min. flow rate Flowmeter Power Source Water in though water line TIG. TORCH Power cable Water out though power cable adapter Coolant WATER required Recirculator Shield OUT. + 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.

2 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 configura- tion. The diagrams below, show arc characteristics of each current polarity type. TIG welding with ACHF (alternating current high TIG welding with DCSP (direct current straight TIG welding with DCRP (direct current reverse frequency) combines the good weld penetration polarity) produces deep penetration because it polarity) produces good cleaning action as the on the negative half cycle with the desired concentrates the heat in the joint area.

3 No argon ions f lowing towards the work strike with cleaning action of the positive half cycle. High cleaning action occurs with this polarity. sufficient force to break up oxides on the surface. frequency reestablishes the arc which breaks each DC TIG DC TIG half cycle. AC TIG. POWER POWER POWER. SUPPLY SUPPLY SUPPLY. + - - +. - + +/- ELE. ELE. ELE. - - - + + +. CTR. CTR. CTR. S. S. S. ION. ION. ION. - - - + + +. ONS. ONS. ONS. - - - + + +. + - +/- 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).

4 70% at work end 30% at work end 50% at work end HEAT BALANCE IN THE ARC HEAT BALANCE IN THE ARC HEAT BALANCE IN THE ARC. 30% at electrode end 70% at electrode 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 CK worldwide , INC. TEL:(253)-854-5820 FAX:(253)-939-1746 TOLL FREE TEL:800-426-0877 2.