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Crooked/wavy bead, Porosity, Excessive spatter – Harbor Freight Tools 94164 User Manual

Page 23: Strike test

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

troubleshooting section at end of manual.

Page 23

SKU 94164

Crooked/wavy bead

pOSSIBLE CAUSES AnD SOLUtIOnS

Stickout too long:

1.

Reduce stickout.
Inaccurate welding:

2.

Use two hands or rest hand on steady

surface.

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porosity

Small cavities or holes in the bead.

pOSSIBLE CAUSES AnD SOLUtIOnS

Stickout too long:

1.

Reduce stickout.
Dirty workpiece or welding wire:

2.

Make certain that workpiece and wire are

both clean and free from oil, coatings, and

other residues.
Insufficient gas flow at weld:

3.

Increase flow of shielding gas.
Dirty nozzle:

4.

Clean nozzle by following the directions

in the cleaning section of this manual.
Wrong type of shielding gas:

5.

Use only the correct welding gas for the

application and wire.

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Excessive Spatter

Spatter that is grainy and large.

Fine spatter is normal.

pOSSIBLE CAUSES AnD SOLUtIOnS

Wire feeding too fast:

1.

Reduce wire feed speed.
Stickout too long:

2.

Reduce stickout.
Dirty workpiece or welding wire:

3.

Make certain that workpiece and wire are

both clean and free from oil, coatings, and

other residues.
Insufficient gas flow at weld:

4.

Increase flow of shielding gas.
Shielding gas being blown away from

5.

weld area:

Protect the weld area from drafts.

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StRIKE tESt

A test weld on a pIECE OF SCRAp can be tested

by using the following procedure.

W E A R A n S I G O G G L E S D U R I n G t h I S

pROCEDURE.

After two scraps have been welded

1.

together and the weld has cooled, clamp

one scrap

*

in a sturdy vise.

Stay clear from underneath while you strike

2.

the opposite scrap with a heavy hammer,

preferably a dead-blow hammer.
A good weld will deform but not break.

3.

A poor weld will be brittle and snap at the

weld.

*

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.