Prospot UK brochure 2024/2025 - Catalog - Page 19
RESISTANCE SPOT WELDING GUIDELINES
RESISTANCE SPOT WELDING GUIDELINES
ELECTRODE FORCE KGF
SINGLE
SHEET
THICKNESS
ELECTRODE
TIP
DIA
MM
MM
WELD TIME 50 HZ
UNCOATED MILD
STEEL
WELD CURRENT K AMPS
UNCOATED MILD
STEEL
COATED MILD STEEL
MEDIUM
HIGH
FORCE
FORCE
SETTING SETTING
HOT
DIP
ZINC
EZ
I Z & MEDIUM HIGH
HOT
ZINC
FORCE
FORCE
DIP
NICKEL SETTING SETTING ZINC
EZ
COATED MILD STEEL
UNCOATED MILD
STEEL
COATED MILD STEEL
I Z & MEDIUM HIGH
HOT
ZINV
FORCE
FORCE
DIP
NICKEL SETTING SETTING ZINC
EZ
IZ&
ZINV
NICKEL
SINGLE
MIN
SHEET
SLUG
THICKNESS DIA
MM
MM
0.4 - 0.6
4 from
90
133
150
150
140
5
4
6
6
4
4
5
7
6
6
to
115
183
204
204
196
7
5
8
8
6
6
8
9
8
8.5
0.6 - 0.8
4 from
125
175
194
194
183
7
6
8
8
6
5
6
8
7
7
0.6
3.9
to
133
204
224
224
224
10
8
10
10
8
7
9
10
9
9.5
0.7
4.2
0.8 - 1.0
5 from
140
194
224
224
214
9
7
9
9
7
6
7
9
8
8
0.8
4.5
to
150
265
296
296
285
12
10
12
12
10
8
10
11
10
10.5
0.9
4.7
1.0 - 1.2
5 from
163
255
285
285
275
11
8
10
10
8
7
8
10
9
9
1.0
5.5
to
183
326
367
367
347
15
12
13
13
12
9
12
13
13
12
1.1
5.5
1.2 - 1.6
6 from
194
306
347
347
326
14
9
11
11
9
8
10
14
12
11
1.2
5.5
to
214
408
459
459
438
18
13
15
15
13
11
13
16
15
14
1.4
5.9
1.6 - 2.0
7 from
265
398
449
449
428
18
10
12
12
10
9
12
18
14
13
1.6
6.3
to
296
527
561
561
540
22
14
16
16
14
13
15
21
17
16.5
1.8
6.7
2.0 - 2.5
8 from
347
510
550
550
530
22
12
14
14
12
10
14
22
17
16
2.0
7.1
to
377
632
693
693
663
28
16
18
18
16
15
18
26
22
21
2.2
7.4
2.5 - 3.0
9 from
449
612
673
673
652
28
15
17
17
15
12
17
26
19
18
2.5
7.9
to
479
765
815
815
795
35
20
21
21
20
17
20
30
24
23
3.0
8.6
Taken from British Standards BS 1140 : 1993 Resistance spot welding of uncoated & coated low carbon
steel.
IMPORTANT: These are recommendations only, settings must take account of actual conditions and be
verified using a destruct test.
NOTES: When welding sheets of dissimilar thickness, welding conditions may be based on the thinner
sheet or the second thinnest sheet on three thicknesses.
SINGLE SHEET
THICKNESS
Nugget
Diameter
ELECTRODE
WELD TIME CYCLES
t
mm
dn
mm
D
mm
R
mm
Force
kN
Weld 琀椀me
ms
Current
kAkA
0.50
3.6
16
75
1.8
40
26
0.75
4.5
16
75
2.2
60
26
1.00
5.0
16
75
3.0
60
31
1.25
5.5
20
100
3.5
80
36
1.50
6.0
20
100
4.0
100
39
2.00
7.0
20
100
5.0
120
44
2.50
8.0
20
100
6.5
140
50
3.00
8.5
25
100
8.0
160
52
Prospot
Linked in
R
Welding Parameters
Prospot
D
19
