Chicago Electric MIG 170 owner manual Cleaning the Weld, Strike Test, Welding Tips

Models: MIG 170

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Welding Tips

A good way to test welding technique is to examine a weld’s appearance after it has cooled and the slag has been removed. Then, better welding can be learned by adjusting your weld technique

to remedy any problems found.

Cleaning the Weld

A typical flux-core wire (FCAW) weld

 

 

before cleaning.

 

slag

weld bead

spatter

 

 

 

base metal

A typical solid wire (GMAW) weld

before cleaning.

weld bead

spatter

base metal

SAFETY

SETUP

Chipping

TO PREVENT SERIOUS INJURY:Hammer Continue to wear ANSI-approved safety

goggles and protective wear when cleaning a weld.

Sparks or chips may fly when cleaning.

1. A weld from flux core wire will be covered by slag, use

 

the Chipping Hammer to knock this off. Be careful

Wire Brush

not to damage the weld or base material.

 

2.Then, use the Wire Brush to further clean the weld or use an angle grinder (sold separately) to shape the weld.

BASIC WELDING

Strike Test

A test weld on a PIECE OF SCRAP can be tested by

using the following procedure.

WEAR ANSI GOGGLES DURING THIS PROCEDURE.

WARNING! This test WILL damage the weld it is performed on. This test is ONLY an indicator of weld technique and is not intended to test working welds.

1.After two scraps have been welded together and the weld has cooled, clamp one scrap in a sturdy vise.

2.Stay clear from underneath while you strike the opposite scrap with a heavy hammer, preferably a dead-blow hammer.

3.A GOOD WELD will deform but not break, as shown on top.

A POOR WELD will be brittle and snap at the weld, as shown on bottom.

dead-blow hammer

clamp

SCRAP

 

 

workpiece

 

GOOD WELD

 

bends and is not brittle

dead-blow hammer

clamp

SCRAP

 

 

workpiece

POOR WELD

snaps or cracks

WELDING TIPS

MAINTENANCE

SKU 68885

For technical questions, please call 1-800-444-3353.

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Chicago Electric MIG 170 owner manual Cleaning the Weld, Strike Test, Welding Tips