Crooked/wavy bead, Porosity, Excessive spatter – Harbor Freight Tools 94164 User Manual
Page 23: Strike test
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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.