Post on 07-Jul-2018
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WELDING ENGINEERING
OVERVIEW
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Welding Fabrication
• Selected –
• Application –
• Employment requires…
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WHAT IS WELDING?
• A JOINING PROCESS THAT IS
INTENDED TO
• HOMOGENOUS IN TERMS OF
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SO, WHAT IS WELDING?
• WELDING IS MORE OF A PROCESS OF
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WHEN CAN WELDING
HAPPEN?
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HOW CAN WELDING HAPPEN IN
SOLID PHASE?
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HOW IS WELDING BEING
CLASSIFIED?
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WHAT ARE THE PROCESS
PHASES IN WELDING?
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WHAT IS SOLID PHASE
WELDING PROCESS?
• THIS IS BY BRINGING THE MATERIAL AT THE
JOINT INTO PLASTIC CONDITION SUITABLE FOR
WELDING TO OCCUR.(IN THIS CONDITION THE
MATERIAL IS STILL IN A SOLID STATE)
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WHAT IS LIQUID PHASE
WELDING PROCESS?
• THIS IS BY BRINGING THE MATERIAL AT THE JOINT
INTO LIQUID STATE
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WHAT ARE THE EXAMPLES OF WELDING THAT
UNDER THE CATEGORY OF SOLID PHASE!!
• EXAMPLES ARE:
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WHAT ARE THE WELDING PROCESSES
UNDER LIQUID PHASE?
• EXAMPLES ARE:-
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SMAW (MMAW)
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GTAW (TIG)
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GMAW (MIG)
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SAW
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IS SOLDERING WELDING?
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IS BRAZING WELDING?
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Then, what is the difference
between Soldering and Brazing?
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WHAT IS THERMAL CUTTING?
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EXAMPLES OF THERMAL
CUTTING
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AIR ARC CUTTING/GOUGING
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WHY ARE WELDING
TECHNOLOGIES DEVELOPED?
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SMAW HAS SHORTCOMING!!
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WHY GTAW BEING
DEVELOPED?
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HOW ABOUT GMAW?
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WHY SAW DEVELOPED?
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WHY FCAW DEVELOPED?
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WHY PLASMA WELDING?
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WHY NEW EVOLUTION OF
WELDING POWER SOURCES?
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Rectification