CK
Worldwide, Inc.
TUNGSTEN
ELECTRODE
SELECTOR
CHART:
END PREPARATION
GRINDING INSTRUCTIONS
EXTENSION INSTRUCTIONS
TUNGSTEN
PREPARATION:
STANDARD PARTS
General Purpose:
Extension:
3 x Diameter from end of
c u p .
GAS LENS PARTS
General Purpose:
Extension:
3 x Diameter from end of
c u p .
Maximum extension:
6 x Diameter from end of
c u p .
(In draft-free areas)
Shape tungsten by grinding logitudinally, never radially.
Remove sharp point to leave a truncated point with a
flat spot. Diameter of flat spot determines amperage.
The included angle determines weld bead shape and
size. Generally, as the included angle increases,
penetration increases and bead width decreases.
Use a 60 grit or finer aluminum oxide wheel.
Ball tip by arcing on clean metal at low
current DCRP (EP) then slowly increase
current to form the desired ball
diameter.
DCSP (EN)
General Purpose:
Flat:
1/4 to 1/2 x Diameter
Taper:
2 to 3 x Diameter
ACHF
General purpose:
Ball:
Max. 1 x Diameter
BASE METAL
TYPE
Balls easily, tends to spit at higher currents,
used for noncritical welds only.
Balls well, high current, little spitting, good
arc starts, good stability.
Medium erosion rate, high current range, little
spitting, good arc starts, good stability.
Lowest erosion rate, widest current range, no
spitting, best arc starts, best stability.
Medium erosion rate, medium current range,
medium spitting, good arc starts, best stability.
Low erosion rate, wide current range, no
spitting, consistent arc starts, good stability.
Medium erosion rate, medium current range,
medium spit, good arc starts, best stability.
Low erosion rate, wide current range, no
spitting, consistent arc starts, best stability.
Rapid erosion rate at higher currents, low
current range recommended, spitting on starts.
Low erosion rate, wide current range, no
spitting, consistent arc starts, good stability.
Medium erosion rate, medium current range,
medium spitting, good arc starts, best stability.
Low erosion rate, wide current range, no
spitting, consistent arc starts, good stability.
Low erosion rate, widest current range, no
spitting, best (DC) arc starts, best stability.
Rapid erosion rate at higher currents, low
current range recommended, spitting on starts.
Low erosion rate, wide current range, no
spitting, consistent arc starts, good stability.
Lowest erosion rate, highest current range, no
spitting, best (DC) arc starts, best stability.
SHIELD GAS
ELECTRODE
TYPE
Pure
(EW-P)
WELDING
CURRENT
DESIRED RESULT
MATERIAL
RANGE
75% Argon
25% Helium
50% Argon
50% Helium
75% Argon
25% Helium
75% Argon
25% Helium
75% Argon
25% Helium
Argon
Argon
Helium
Argon
75% Argon
25% Helium
75% Argon
25% Helium
75% Argon
25% Helium
75% Argon
25% Helium
Helium
Argon
75% Argon
25% Helium
Zirconiated
(EW-Zr)
2% Thoriated
(EW-Th2)
2% Ceriated
(EW-Ce2)
2% Thoriated
(EW-Th2)
2% Ceriated
(EW-Ce2)
2% Thoriated
(EW-Th2)
2% Ceriated
(EW-Ce2)
Zirconiated
(EW-Zr)
2% Ceriated
(EW-Ce2)
2% Thoriated
(EW-Th2)
2% Ceriated
(EW-Ce2)
2% Lanthanated
(EW-Ce2)
Zirconiated
(EW-Zr)
2% Ceriated
(EW-Ce2)
2% Lanthanated
(EW-Ce2)
ACHF
General purpose
All
Only thin
sections
Control penetration DCRP
DCSP
General purpose
All
Increase penetration
or travel speed
Only thick
sections
Only thin
sections
Control penetration ACHF
Increase penetration
or travel speed
Only thick
sections
DCSP
General purpose
All
Only thin
sections
Control penetration ACHF
Increase penetration
or travel speed
Only thick
sections
Aluminum
alloys and
Magnesium
alloys
Copper alloys
Cu-NI alloys
and
Nickel alloys
Mild steels
Carbon steels
Alloy steels
Stainless steels
and Titanium
alloys
TUNGSTEN PERFORMANCE
CHARACTERISTICS
DCSP
DCSP
DCSP
TECHNICAL
INFORMATION
CHART:
WELDING CURRENT (AMPS)
- TUNGSTEN TYPE
ARGON FLOW (CFH)
- FERROUS METALS
ARGON FLOW (CFH)
- ALUMINUM
AC
PURE
AC
THORIATED
DCSP
PURE
DCSP
THORIATED
STANDARD
BODY
GAS LENS
BODY
STANDARD
BODY
GAS LENS
BODY
CUP
SIZE
ELECTRODE
DIAMETER
(inches)
.020
4 or 5
5-15
5-20
5-15
5-20
5-8
5-8
5-8
5-8
.040
4 or 5
10-60
15-80
15-70
20-80
5-10
5-8
5-12
5-10
1/16
4, 5 or 6
50-100
70-150
70-130
80-150
7-12
5-10
8-15
7-12
3/32
6, 7 or 8
100-160
140-235
150-220
150-250
10-15
8-10
10-20
10-15
1/8
7, 8 or 10
150-210
220-325
220-330
240-350
10-18
8-12
12-25
10-20
5/32
8 or 10
200-275
300-425
375-475
400-500
15-25
10-15
15-30
12-25
3/16
8 or 10
250-350
400-525
475-800
475-800
20-35
12-25
25-40
15-30
1/4
10
325-700
500-700
750-1000
700-1100
25-50
20-35
30-55
25-45
Form No. 5702
CK Worldwide, Inc.
P.O. Box 1636 Auburn, WA. 98071
tel: (206) 854-5820
fax: (206) 939-1746
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