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BMH-22i
6.1.2
Welding parameters for welding operation
NOTE
The set welding parameters influence the reproducibility and quality of the welding results
to a large extent. The parameters depend on the size of the studs and the material
properties. The values indicated in the tables are standard values which are
exclusively valid for studs supplied by SOYER. They may vary depending on the type
of workpiece, the workpiece thickness, the surface condition of the workpiece and on
environmental conditions (e.g. low outdoor temperatures). The settings of the welding gun
or welding head also influence the welding parameters.
Random samples should be taken during any production process to ensure constantly good welding
results (see DIN EN ISO 14 555, "Arc welding of metallic materials").
The welding parameters were determined with the BMH-22i stud welder.
Time =ms
Energy=A
When using stud diameters exceeding 6 mm, we recommend the application of shielding gas or
ceramic ferrules in order to prevent pore formation and to optimise bulging.
6.1.3
Minimum sheet thickness when welding with drawn arc operation
Observance of the minimum sheet thickness prevents the plate from being burnt through during the
welding process.
Method
Drawn arc stud welding with
ceramic ferrule or shielding
gas
Short-cycle drawn arc stud
welding
Capacitor discharge drawn
arc stud welding
CF = ceramic ferrule, SG = shielding gas, NP = no weld pool protection
For studs as per DIN EN ISO 13 918
6
8
10
2,5
3
2,7
3,5
2,8
1,5
1
1,6
1,2
2
150
250
350
200
250
350
450
600
800
350
500
700
Weld time
Stud dia.
> 100 ms
3 up to
25 mm
> 100 ms
3 up to
16mm
≤ 100 ms
3 up to
12 mm
< 10 ms
3 up to
10 mm
12
14
4
3
4,2
3,2
4,5
1,3
2,3
1,5
2,6
1,8
450
--
500
550
1000
--
900
1100
Welding current
in ampere
300 up to 3000
CF
300 up to 3000
SG
up to 1500
NP, SG, CF
up to 3000
NP, SG
16
19
20
3,4
5
3,5
5,5
3,6
3
2
3,5
2,3
3,7
--
--
--
650
800
850
--
--
--
1300
1600
1700
Weld pool
Minimum sheet thickness
protection
¼d but 1 mm minimum
⅛d but 1 mm minimum
⅛d but 0.6 mm minimum
1/10d but 0.5 mm
minimum
22
5,5
4
6
2,6
4
3
--
950
--
1950
39
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