Tweco 350 4R Wirefeeder - Manual (Page 9)

safety instructions weldskill 250, 350
1-3 Manual 0-5182 Safety Instructions
Recommended Protective Filters for Electric Welding
Description of Process
Approximate range of Weldi ng
Current in Amps
Minimum Shade Number of
Filter(s)
Manual Metal Arc Welding covered
electrodes (MMAW)
Less than or equal to 100 8
100 to 200 10
200 to 300 11
300 to 400 12
Greater than 400 13
Gas Metal Arc Welding (GWAW)
(MIG) other than Aluminium and
Stainless Steel
Less than or equal to 150 10
150 to 250 11
250 to 300 12
300 to 400 13
Greater than 400 14
Gas Metal Arc Welding (GMAW)
(MIG) Aluminium and Stainless Steel
Less than or equal to 250 12
250 to 350 13
Gas Tungsten Arc Welding (GTAW)
(TIG)
Less than or equal to 100 10
100 to 200 11
200 to 250 12
250 to 350 13
Greater than 350 14
Flux-cored Arc Welding (FCAW)
-with or without shielding gas.
Less than or equal to 300 11
300 to 400 12
400 to 500 13
Greater than 500 14
Air – Arc Gouging Less than or equal to 400 12
Plasma-Arc Cutting
50 to 100 10
100 to 400 12
400 to 800 14
Plasma-Arc Spraying — 15
Plasma-Arc Welding
Less than or equal to 20 8
20 to 100 10
100 to 400 12
400 to 800 14
Submerged Arc Welding — 2(5)
Resistance Welding — Safety Spectacles or eye shield
Refer to standard AS/NZS 1338.1:1992 for comprehensive information regarding the above table.