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Address: 6th Floor, Building 2, No. 615, Ningqiao Road, Jinqiao Economic Development Zone, Pudong New Area, Shanghai
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BTH BOLTE Welding Studs for Capacitor Discharge Stud Welding
Earth Plug Double Warth Plug
Earth plug Double earth plug
Capacitor discharge stud welding has been successfully used for
many years all over the world. It allows weld studs with a maximum
diameter of M12 to be welded. The welding process is executed by
discharging the capacitor battery within a fraction of a second
from 1 – 3 ms (0.001 – 0.003 sec.) using the welding element’s
ignition tip.
This procedure has proven invaluable especially in vehicle
construction, sheet metal forming and decorative metal design.
Earth plug
Not listed dimensions and materials available upon request
| Material (item number) | |||
| Steel copper-plated | A2-50 | AlMg3 | CuZn37 |
| 30-10-063-PA | 30-20-063-PA | 30-40-063-PA | 30-30-063-PA |
Double earth plug
Not listed dimensions and materials available upon request.
| Material (item number) | |||
| Steel copper-plated | A2-50 | AlMg3 | CuZn37 |
| 30-11-063-PA | 30-22-063-PA | 30-44-063-PA | 30-33-063-PA |
Materials
Our welding studs are standardly made from the following materials:
| Materials | Production standards | Yields trength/point | Tensile strength | Elongation |
| Steel Strength class 4.8 | According to DIN EN ISO 898-1 | (Re)≥340N/mm2 | (Rm)≥420N/mm2 | (A5)≥14% |
| Stainless steel A2-50 | According to DIN EN ISO 3506-1 | (Rp0,2)≥210N/mm2 | (Rm)≥500N/mm2 | (AL)≥0,6d |
| Stainless steel1.4571 | According to DIN EN ISO 3506-1 | (Rp0,2)≥210N/mm2 | (Rm)≥500N/mm2 | (AL)≥0,6d |
| Aluminium AlMg3 | (Rm)≥100N/mm2 | |||
| Brass CuZn37 | (Rm)≥370N/mm2 |
| The materia lspecifications conform with DIN EN ISO 13918 and DIN
EN ISO 14555.Forwelding studs from other materials please send us
you rinquiry or contact us. On demand, the material properties can
be verified by an inspection document (test report,inspection
certificate) according to DIN EN 10204. We are pleased to inform
you about weldability to different base materials and welding
parameters. Dimensions Welding studs dimensions are given in the measurement tables (all
dimensions in mm).All standardised welding studs conform to DIN EN
ISO 13918. Not standardised welding studs are supplied according to
DIN EN ISO 13918. Special welding elements, which are not
described, are delivered upon request. Dimensions that are not
listed in the measurement tables are delivered upon request. Surface protection Standardly our welding studs made fro msteel 4.8 are supplied with
an electrolytic copper plating of 4-8 µm (according to DIN EN ISO
4042) as corrosion protection.Other surface treatments are possible
upon request.Threads The threads of the studs are cold rolled (tolerance limit 6g). For
surface-treated studs the tolerance limit 6h can be reached. We deliver studs with special threads upon request. Stud flange Welding studs for capacitor discharge stud welding have a cold formed flange. The diameter oft he flange is always bigger than the external diameter of the welding element (see following drawings and measurement tables). The flange prevents the electric arc to flash over to the cylindrical part of the welding elemsent and increases the welding area. By this, a high strength of the stud welded joint is guaranteed. Upon request, it is possible to deliver welding studs with flange dimensions other than the ones listed and welding studs without flange. However, we can only recommend the limited use of welding studs without flange–depending on the welded joint requirements. Please contact us for this. Welding pip
Welding studs for capacitor discharge stud welding have a cold formed calibrated welding pip with length and diameter tolerances closely controlled. At the welding pip the welding process is initiated and it determines the length of the welding time.Therefore exact dimensions of the welding pip are decisive for proper welding results. |
