TABLE OF CONTENTS

SECTION 8 − MIG WELDING (GMAW) GUIDELINES

31

8-1. Typical MIG Process Connections

31

8-2. Typical MIG Process Control Settings

32

8-3.

Holding And Positioning Welding Gun

33

8-4.

Conditions That Affect Weld Bead Shape

34

8-5.

Gun Movement During Welding

35

8-6.

Poor Weld Bead Characteristics

35

8-7.

Good Weld Bead Characteristics

35

8-8.

Troubleshooting − Excessive Spatter

36

8-9.

Troubleshooting − Porosity

36

8-10.

Troubleshooting − Excessive Penetration

36

8-11.

Troubleshooting − Lack Of Penetration

37

8-12.

Troubleshooting − Incomplete Fusion

37

8-13.

Troubleshooting − Burn-Through

37

8-14.

Troubleshooting − W aviness Of Bead

38

8-15.

Troubleshooting − Distortion

38

8-16.

Common MIG Shielding Gases

39

8-17.

Troubleshooting Guide For Semiautomatic Welding Equipment

39

SECTION 9 − PARTS LIST

42

OPTIONS AND ACCESSORIES

 

WARRANTY

 

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Hobart Welding Products OM-925 217 694A manual Options and Accessories Warranty