MATERIALS 
MATERIALS
## HOW ARE METALS CLASSIFIED?
Metals play a major role today in all areas of society’s development. These materials are present daily in…
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Month: June 2026
No Catergory 
No Catergory
# WHAT ARE TUNGSTEN INCLUSIONS AND WHY ARE THEY SO SERIOUS?
Tungsten inclusions are almost always associated with the GTAW process, which uses a tungsten electrode to establish the…
QUALITY 
QUALITY
WHAT IS UNDERCUT? A DEFECT OR DISCONTINUITY.
Undercut is a surface discontinuity that occurs in the base metal directly adjacent to the weld bead; depending…
No Catergory 
No Catergory
# WHY DO LACK OF FUSION, LACK OF PENETRATION, AND SLAG INCLUSIONS OCCUR?
By definition, lack of fusion is described as the condition in which the deposited metal is not completely…
MATERIALS 
MATERIALS
# HOW CAN COPPER BE WELDED?
Copper was one of the first metals used by mankind, as it existed in relatively abundant quantities in…