Hobart Welding Products 187 guide

9-4. Conditions That Affect Weld Bead Shape

.Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed, thickness of base metal, wire feed speed (weld current), and voltage.

	10°
	Push
	10°
Perpendicular	Drag

GUN ANGLES AND WELD BEAD PROFILES

Short

Normal

Long

ELECTRODE EXTENSIONS (STICKOUT)

Short

Normal

Long

FILLET WELD ELECTODE EXTENSIONS (STICKOUT)

Slow	Normal	Fast
	GUN TRAVEL SPEED	S-0634
		S-0634

OM-228 187 Page 35

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Hobart Welding Products 187 manual Conditions That Affect Weld Bead Shape

Contents

2010−01 OM-228 187BProcesses Description Protect Your Investment From Hobart to You Table of Contents − Parts List HOT Parts can burn Symbol UsageArc Welding Hazards Electric Shock can kill Flying Metal or Dirt can injure eyes Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosion Moving Parts can injure Welding Wire can injureFire or Explosion hazard Falling Equipment can injure About Implanted Medical Devices Principal Safety StandardsCalifornia Proposition 65 Warnings EMF Information UNE Décharge Électrique peut entraîner la mort Symboles utilisés LES Pièces Chaudes peuvent provoquer des brûlures LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un incendie ou une explosion LA Chute DE L’ÉQUIPEMENT peut provoquer des blessures LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées Risque D’INCENDIE OU LE Soudage À L’ARC risque de provoquer des interférences Proposition californienne 65 AvertissementsLes Pièces Mobiles peuvent causer des blessures LES Fils DE Soudage peuvent provoquer des blessures Principales normes de sécurité Informations relatives aux CEMEn ce qui concerne les implants médicaux OM-228 187 − Definitions − SpecificationsSymbols And Definitions Specifications Output Duty Cycle And OverheatingVolt-Ampere Curves Amperes − Installation Installing Nozzle, Contact Tip, And AdapterInstalling Welding Gun Installing Work Clamp Turn off welding power source Process/Polarity TableChanging Polarity Installing Gas Supply Selecting a Location And Connecting Input Power Installing Wire Spool And Adjusting Hub Tension Electrical Service Guide Hold wire tightly to keep it from unraveling Threading Welding Wire Controls − Operation OM-228 187 CFH Weld Parameter Chart 227010 Drive Motor Protection − Maintenance & TroubleshootingRoutine Maintenance Overload Protection Changing Drive Roll Or Wire Inlet Guide Thread wire according to Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting Table OM-228 187 Circuit Diagram − Electrical Diagram 228 180-A Typical MIG Process Connections − MIG Welding Gmaw Guidelines Typical MIG Process Control Settings Wire Size Amperage RangeSelect Voltage Groove Welds Holding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Poor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Excessive Penetration Troubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of Bead Troubleshooting Guide For Semiautomatic Welding Equipment Common MIG Shielding GasesApplication Welding arc not stable Wire slipping in drive rolls Main Assembly − Parts List Dia Part Description Quantity 228 245 H100S2-10 Gun Options Optional Drive Rolls Service SupportAssistance Hobart Welding Products Contact your Distributor for