Coldweld™

The Coldweld™ Process

Cold welding is a method for joining non-ferrous metals and their alloys without using heat, fillers or fluxes. Round wire sections, dissimilar materials and materials of different sizes can all be welded with BWE’s proven cold welding technology. A cold weld is generally stronger than the parent material and has the same electrical characteristics.

In order to obtain a true weld, all contaminants (oxides, oils, chemicals etc) must be removed so that clean surfaces can be brought together. BWE’s cold welding machines achieve this by using a multiple upset technique which ejects the contaminated material from the weld zone eliminating the need for any special preparation.

A wide range of cold pressure welding machines are available covering applications from rod to fine wire. BWE offers a facility for test welding customers material to confirm its suitability for cold welding.

BWE Ltd is the world’s longest established manufacturer of Cold Pressure Welding equipment, having manufactured Cold Pressure Welding Machines at its Ashford factory since 1969.

Today, many machines and dies are manufactured by BWE’s subsidiary company, BWE Shanghai Ltd. BWE Shanghai supplies the Chinese domestic market and exports through BWE and BWE’s North American associate Koldweld LLC. Final assembly of powered machines is carried out by BWE in the UK where the electrical control circuitry is also built to ensure strict compliance with IEC Regulations.

All dies are hand-lapped to the highest possible standard. For the Chinese domestic market this is carried out in Shanghai while for European and most other markets this is still based in the UK where substantial stocks of unfinished dies are maintained to ensure a rapid response.

Products: CW10CW20CW1ECW2ECW3ECW4ECW4ERCW5EAW813AW1320Dies

CW10

Operation
Manual

Capacities
Aluminium/Copper
0.08mm – 0.60mm

CW20

Operation
Manual

Capacities
Aluminium/Copper
0.30mm – 1.20mm

CW1E

Operation
Manual

Capacities
Aluminium/Copper
0.10mm – 0.60mm

CW2E

Operation
Manual

Capacities
Aluminium/Copper
0.30mm – 2.0mm

CW3E

Operation
Manual

Capacities
Aluminium/Copper
1.0mm – 5.50mm

CW4E

Operation
Pneumatic

Capacities
Aluminium/Copper
1.0mm – 6.35mm

CW4ER

Operation
Pneumatic

Capacities
Aluminium/Copper
2.0mm – 6.50mm

CW5E

Operation
Pneumatic

Capacities
Aluminium/Copper
2.0mm – 10.0mm

AW813

Operation
Electric

Capacities
Aluminium/Copper
4.0mm – 13.0mm

AW1320

Operation
Electric

Capacities
Aluminium/Copper
6.0mm – 20.0mm

Coldweld Applications

The Coldweld process is used for joining non-ferrous metals and their alloys without using heat, fillers or fluxes. Round wire sections, dissimilar materials and materials of different sizes can all be welded with BWE’s proven cold welding technology.

    ADDRESS

    BWE Ltd
    Beaver Industrial Estate
    Ashford
    Kent
    England
    TN23 7SH

    PHONE

    +44 (0) 1233 627 736

    EMAIL

    mail@bwe.co.uk