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Page 24 For technical questions, please call 1-800-444-3353. SKU 68885
EXCESS PENETRATION OR
BURN-THROUGH
PROPER PENETRATIONINADEQUATE PENETRATION
Not hot enough Too hotIdeal heat
Weld Diagnosis
Workpiece Heat Control / Weld Penetration
Good
Weld
Current
Too Low or
Wire Feed
Too Slow
Current
Too High or
Wire Feed
Too Fast
Weld Speed
Too Fast
Weld Speed
Too Slow
Stickout
Too Long
or Wrong
Polarity
Example Weld Diagrams
TO CORRECT:
weld
slower
TO CORRECT:
weld
faster
How to increase workpiece heat
and increase penetration:
(to weld THICKER workpieces properly)
How to reduce workpiece heat
and limit penetration:
(to weld THINNER workpieces properly)
a. Increase weld current
b. Weld more slowly
c. Use faster wire feed
d. Use shorter stickout
a. Decrease weld current
b. Weld more quickly
c. Use slower wire feed
d. Use longer stickout
TO CORRECT:
Decrease
Current
Max2 -> Max1
Max1 -> Min2
Min2 -> Min1
or
MIG 170
WIRE FEED WELDER
ITEM 68885
WIRE FEED SPEED
20A
240V~
Wire
.023″-.035″
(Tip and roller change required)
Capacity 22 Ga. – 1/4″ Steel Plate
Material
Types
Mild Steel and Stainless Steel
(Not for welding Aluminum.)
I
O
TO CORRECT:
Increase
Current
Min1 -> Min2
Min2 -> Max1
Max1 -> Max2
or
MIG 170
WIRE FEED WELDER
ITEM 68885
WIRE FEED SPEED
20A
240V~
Wire
.023″-.035″
(Tip and roller change required)
Capacity 22 Ga. – 1/4″ Steel Plate
Material
Types
Mild Steel and Stainless Steel
(Not for welding Aluminum.)
I
O
TO CORRECT:
maintain
less
than
1
/
2
″
stickout
Check Polarity
and
SAFETY MAINTENANCEBASIC WELDING WELDING TIPSSETUP