Soyer BMK-8 U - Welding Parameters for Welding Operation; Minimum Sheet Thickness When Welding with Drawn Arc Operation

BMK-8 U / BMK-12 W
36
6.2 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 influence the welding parameters as well.
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")
Table for BMK-8U
ms
ms
ms
Ø 2
Ø 3
5
5
40
40
0
0
M3
RD 6
10
70
40
40
0
300
M4
PD 6
30
90
40
40
0
300
M5
RD 8
50
165
40
40
300
300
M6
PD 8
110
190
40
40
300
300
---
RD 10
--
250
40
40
400
400
Table for BMK-12W
ms
ms
ms
M3
5
40
0
M4
RD 6
10
30
40
40
0
300
M5
PD 6
15
50
40
40
0
300
M6
RD 8
30
80
40
40
300
300
M8
PD 8
80
100
40
40
300
300
M10
RD 10
300
170
40
40
400
400
PD 10
200
40
400
RD 12
220
400
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.
6.2.1 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
Weld time
Stud dia.
Welding
current
in ampere
Weld pool
protection
Minimum
sheet
thickness
Drawn arc stud welding
with ceramic ferrule or
shielding gas
> 100 ms
3 up to
25 mm
300 up to 3000
CF
¼d, but
1 mm min.
> 100 ms
3 up to
16 mm
300 up to 3000
SG
⅛d, but
1 mm min.
Short-cycle drawn arc
stud welding
≤ 100 ms
3 up to
12 mm
up to 1500
NP, SG, CF
⅛d, but
0.6 mm min.
Capacitor discharge
drawn arc stud welding
< 10 ms
3 up to
10 mm
up to 3000
NP, SG
1/10d, but
0.5 mm min.
CF = ceramic ferrule, SG = shielding gas, NP = no weld pool protection