2. electrode and amperage selection chart, 3. striking an arc – scratch start technique, 4. striking an arc – tapping technique – Hobart Welding Products CHAMP 2060 User Manual

Page 47

Advertising
background image

OM-499 Page 43

11-2. Electrode and Amperage Selection Chart

Ref. S-087 985-A

3/32

1/8

5/32
3/16
7/32

1/4

1/16
5/64
3/32

1/8

5/32
3/16
7/32

1/4

3/32

1/8

5/32
3/16
7/32

1/4

3/32

1/8

5/32
3/16
7/32

1/4

3/32

1/8

5/32
3/16
7/32

1/4

3/32

1/8

5/32
3/16
3/32

1/8

5/32

6010

&

6011

6013

7014

7018

7024

Ni-Cl

308L

50

100

150

200

250

300

350

400

450

ELECTRODE

DC*

AC

POSITION

PENETRA

TION

USAGE

MIN. PREP, ROUGH

HIGH SPATTER

GENERAL

SMOOTH, EASY,

FAST

LOW HYDROGEN,

STRONG

SMOOTH, EASY,

FASTER

CAST IRON

STAINLESS

DEEP

DEEP

LOW

MED

LOW

LOW

LOW

LOW

ALL

ALL

ALL

ALL

ALL

FLAT

HORIZ

FILLET

ALL

ALL

EP

EP

EP,EN

EP,EN

EP

EP,EN

EP

EP

6010

6011

6013

7014

7018

7024

NI-CL

308L

*EP = ELECTRODE POSITIVE (REVERSE POLARITY)
EN = ELECTRODE NEGATIVE (STRAIGHT POLARITY)

ELECTRODE

AMPERAGE

RANGE

DIAMETER

11-3. Striking an Arc – Scratch Start Technique

S-0049

1

Electrode

2

Workpiece

3

Arc

Drag electrode across workpiece
like striking a match; lift electrode
slightly after touching work. If arc
goes out electrode was lifted to
high. If electrode sticks to work-
piece, use a quick twist to free it.

1

2

3

11-4. Striking an Arc – Tapping Technique

S-0050

1

Electrode

2

Workpiece

3

Arc

Bring electrode straight down to
workpiece; then lift slightly to start
arc. If arc goes out, electrode was
lifted too high. If electrode sticks to
workpiece, use a quick twist to free it.

1

3

2

Advertising