Metabo Invert 130/60 User Manual download pdf (Page 14)

Welding method

Pre-heat the starting point in the work piece, by moving the torch in small circles until the weld bead is formed.

The electrode must be held at about 6 mm (.23 in) from the piece; as soon as the melted bead forms, proceed

slowly at constant speed in order to make a melted seam uniform in penetration and width.

If filling material is used, keep the rod sloped and about 20 mm (.79 in) from the piece.

When the weld seam becomes fluid, move the torch back and add material, touching the rod to the bead.

Pull the rod away and position the torch back near the weld pool.

Repeat this operation quickly and constantly so that the weld remains homogenous.

TIG WELDING PARAMETERS FOR STEEL

Thickness

material

Direct current for

iron (A)

Direct current

for stainless

steel (A)

Tungsten

electrode

diameter

Rod diameter

(if required)

Argon gas

flow (lt/min)

Type of joint

1.0mm

(.04 in)

35-45

40-50

20-30

25-35

1.0mm

(.04 in)

1.6mm

(.06 in)

5-7

(1.3-1.8gal/min)

Corner joint /

Surface joint

1.2mm

(.047 in)

45-55

50-60

30-45

35-50

1.0mm

(.04 in)

1.6mm

(.06 in)

5-7

(1.3-1.8gal/min)

Corner joint /

Surface joint

1.6mm

(.06 in)

60-70

70-90

40-60

50-70

1.6mm

(.06 in)

1.6mm

(.06 in)

(1.8 gal/min)

Corner joint /

Surface joint

3.2mm

(.13 in)

80-100

90-115

65-85

90-110

1.6mm

(.06 in)

2.4mm

(.09 in)

(1.8 gal/min)

Corner joint /

Surface joint

4.8mm

(.19 in)

115-135

140-165

100-125

125-150

2.4mm

(.09 in)

3.2mm

(.13 in)

(2.6 gal/min)

Corner joint /

Surface joint

6.4mm

(.25 in)

160-175

170-200

135-160

160-180

3.2mm

(.13 in)

4.0mm

(.16 in)

(2.6 gal/min)

Corner joint /

Surface joint

TIG welding parameters in direct current (DC).

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 35 36

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Metabo Invert 130/60 User Manual Page 14

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