Tig Plasma
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Transcript of Tig Plasma
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WELCOME
TO
WELDING SESSION
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Fusion Welding Principles
Base metal is melted
Filler metal may be added
Heat is supplied by various means Oxyacetylene gas
Electric Arc
Plasma Arc
Laser
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ADVANCED WELDING PROCESSES
TIG/GTAW PROCESS
PULSED & SYNERGIC PULSED TIG PROCESS
MECHANISED TIG WITH COLD WIRE FEEDINGPROCESS
ORBITAL TIG PROCESS
ROBOTIC TIG PROCESS
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Safety
It is important to know what safety equipment
is available to assure you are properly protected
against the hazards of welding.
Ask, dont assume you are protected.
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Personal Safety Equipment
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Work Boots
Leather work boots
should be worn to
prevent the welding
slag and sparks from
burning the feet.
Lace them all the
way and place pants
over the tongue.
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Eye Wash Station
An eye wash
station is availablein the shop and
used whenever any
foreign
contaminates enter
the eyes.
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PERSONAL PROTECTIVE EQUIPMENT FOR TIG PROCESS
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AC/DC PULSED TIG POWER SOURCE
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When TIG welding certain materials, such asstainless steel or nickel alloys, it is necessary to
prevent the reverse side of the weld area oxidising,particularly in pipework when post-weld cleaning ofthe root is impossible.This is usually achieved bypassing a stream of inert gas through the pipe, orover the reverse side of a plate, to exclude, or purge,
oxygen from the area.The gases most frequently used for purging areargon or nitrogen. Which gas is chosen will dependon technical, practical or economic reasons.
Back Purging
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