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16
NOZZLE/TIP
RELATIONSHIPS
Shown
below
are
typical
relationship
between
the
contact
tip
and
nozzle
in
GMAW
Semi-Automatic
applications.
Nozzles
to
tip
relationships
are
usually
dictated
by
the
process
and
application
but
not
necessarily
the
standard.
Keep
in
mind
that
decreased
tip
life,
increased
spatter
cleaning
cycles
may
be
required
if
the
tip
relationship
is
changed
to
achieve
other
objectives.
Extended
Tip
–
Short
Circuit
(Short
Arc,
Dip
Transfer)
Welding
Applications
The
tip
stick
out
is
usually
1/8
”
or
1/4”
from
the
nozzle.
Keep
in
mind
that
the
further
the
stick
out
the
more
susceptible
to
gas
porosity
issues.
Typically,
this
used
in
short
circuit,
lower
amperage
applications,
and/or
where
you
may
need
to
reach
into
a
corner.
Flush
Tip
–
Higher
current
Short
Circuit
(Short
Arc,
Dip
Transfer)
Welding
Applications
The
tip
is
flush
with
the
end
of
the
nozzle.
Typically
used
in
higher
current
and
voltage
short
circuit
applications.
Recessed
Tip
–
Spray
Arc,
Pulsed,
Flux
Core
Welding
Applications
The
tip
is
usually
recessed
in
the
nozzle
1/8
”
or
1/4”.
Usually,
the
higher
the
heat
and/or
current
the
further
the
recess.
However,
this
is
also
dependent
on
the
wire
used
and
the
arc
length
requirement.
Содержание 607CG
Страница 20: ...19 PARTS BREAKDOWN 607 CG ...