How many amps do you need to arc gouge?
Gouging Electrodes
| ELECTRODE CURRENT REQUIREMENTS | ||
|---|---|---|
| ELECTRODE | 5/32 | 3/16 |
| MIN. AMPS DC | 90 | 200 |
| MAX. AMPS DC | 150 | 250 |
How many amps is an arc of carbon?
Air Carbon Arc Gouging Procedure Schedule
| Grove Width | Amps Direct Current | |
|---|---|---|
| in. | mm | |
| 5/16 | 7.9 | To make 1/4 in. deep groove, make two 1/8 in. deep passes |
| 5/16 | 7.9 | 270 |
| 5/16 | 7.9 | 300 |
How many CFM do I need for arc gouging?
12-15 cfm will work but will work the compressor full time. The bigger the compressor and the more tank you have the longer it will last and more efficiently it will work. Most work can be accomplished without opening the air all the way on the torch.
What DC current is recommended for use with air carbon arc cutting?
However, any three-phase welding power source of sufficient capacity may be used for air carbon arc gouging. The arc voltage used in air carbon arc gouging and cutting ranges from a low of 35 to a high of 56 volts; thus the open-circuit voltage should be at least 60 volts.
Can you arc gouge cast iron?
Application. As air carbon arc gouging does not rely on oxidation it can be applied to a wide range of metals. DC (electrode positive) is normally preferred for steel and stainless steel but AC is more effective for cast iron, copper and nickel alloys.
What is arc gouging?
Air carbon arc cutting, also referred to as metal arc gouging, and previously as air arc cutting, is an arc cutting process where metal is cut and melted by the heat of a carbon arc. It employs a consumable carbon or graphite electrode to melt the material, which is then blown away by an air jet.
What is the polarity of carbon arc gouging?
reverse polarity
For most applications CAC-A is used with DCEP (reverse polarity). The electrode should extend at most 7 inches from the gouging torch with the air jet between the electrode and workpiece.
How loud is carbon arc gouging?
Air carbon arc cutting and gouging is a welding process that exposes workers to hazardous sound levels from 108-120 dB(A). Welders who perform the gouging process and other workers in close proximity to the process are at risk for noise-induced hearing loss.
What is air carbon arc gouging?
What is the recommended air pressure range for the air carbon arc cutting and gouging?
between 80 psi and 100 psi
A minimum extension of 2″ should be used to prevent damage to the torch parts. Normal compressed air pressures for CAC-A range between 80 psi and 100 psi at the torch; higher pressures may be used, but they don’t remove metal more efficiently. Use 60 psi (413.7 kPa) with the light-duty manual torch.
How does carbon arc gouging work?
Air carbon arc gouging is a process of removing metal by means of heat generated from a carbon arc. The process uses a carbon/graphite electrode, compressed air and a standard power source. The intense electric arc used between the tip of a carbon electrode and a metal work piece cuts and melts the work piece.
What is carbon arc cutting?
carbon-arc cutting. [¦kär·bən ¦ärk ′kəd·iŋ] (metallurgy) An arc cutting process which generates heat in order to melt a base metal with a carbon electrode to eventually produce a cut. An arc-cutting process in which the severing of metal is effected by melting with the heat of an arc produced between the carbon electrode and the metal being cut.
What is carbon arc welding?
Carbon arc welding. Carbon arc welding (CAW) is a process which produces coalescence of metals by heating them with an arc between a non-consumable carbon (graphite) electrode and the work-piece.
What are carbon arc rods?
In popular use, the term arc lamp means carbon arc lamp only. In a carbon arc lamp, the electrodes are carbon rods in free air. To ignite the lamp, the rods are touched together, thus allowing a relatively low voltage to strike the arc. The rods are then slowly drawn apart, and electric current heats and maintains an arc across the gap.