Welded Contact Assemblies
Welded and brazed electrical contact assemblies for relays, switches and contactors, with defined joint positions and stamped or formed conductive supports.
Contact side: round contact, mounting holes and carrier outline.
Welded Contact Assemblies · 1 / 3
Part details
- Type
- Welded contact assemblies
- Materials
- Specified contact materials with copper or copper-alloy supports
- Applications
- Relays, switches, contactors, circuit breakers
- Key dimensions
- Key joint and assembly dimensions confirmed by drawing or sample
Sampling & supply
- Sample development
- Available after technical review
- Production MOQ
- Confirmed by part, material, tooling and production arrangement; sample and trial quantities assessed separately
- Sample lead time
- Typically 5-10 working days after technical review and agreed start conditions
- Production lead time
- Typically 15-20 days after technical review and agreed start conditions
Joining routes for contact and support materials.
Contact position and support geometry
The photographs show the finished contact and pierced carrier together. Define the working contact position from the mounting holes or another assembly datum, including its orientation and projection above the support.
Welding and brazing options
Manufacturing routes include resistance spot welding, resistance brazing, induction brazing and furnace brazing. The contact and carrier materials, available joint area and formed geometry guide the process selection.
Stamped or formed supports
Include the carrier's holes, bends and locating features in the assembly specification so the contact and support can be supplied as a finished unit.
Checks matched to the joint
Agree the dimensional and visual checks for the finished assembly. Bonding, shear or cross-section checks are included when specified in the inspection plan.
Welded assembly dimensions
The contact material, support, joint position, and geometry determine the welding or brazing route.
| Dimension | How confirmed |
|---|---|
| Support thickness | Drawing or sample |
| Contact size and position | Drawing or sample |
| Joint location and orientation | Drawing or sample |
| Overall assembly length / width | Drawing or sample |
| Tolerances | Technical review |
Confirm these dimensions and tolerances from the drawing or sample, material system, and project review before production.
- Contact and support material combination
- Joint position, orientation, and key assembly dimensions
- Welding or brazing route selected for the finished part
- Agreed visual, bond, and section checks
Understand the Structure and Key Features
Fusion welding · example
A local fused region joins the contact and conductive support.
- Contact
- Conductive support
- Local fused region
Brazing · principle
Filler metal melts to form the joint while the base materials remain solid.
- Contact
- Conductive support
- Brazing filler metal
Compare the contact material, conductive support and joining method.
Manufacturing & inspection
Manufacturing route
The joining method is selected according to the part design and the required assembly outcome.
- Resistance spot welding where applicable
- Resistance brazing, induction brazing, or furnace brazing where applicable
- Support stamping or forming as required
- Joint positioning and sampling to the approved assembly specification
Inspection focus
Inspection focuses on the joint, geometry, and agreed evidence for the specific assembly.
- Joint position, key dimensions, and overall appearance
- Weld or braze visual condition
- Bonding or shear checks where specified
- Cross-section or metallographic checks when required by the inspection plan
Materials & applications
Material systems
- Specified contact materials
- Copper or copper-alloy support materials
- Silver or specified finished surface conditions
Typical applications
- Relays
- Switches
- Contactors
- Circuit breakers
- Temperature controllers
Related technical data
Check the material data before selecting the material and manufacturing process.
Confirm the joint, support geometry, and assembly dimensions.
Send the joint location, materials, surface condition, drawing, or sample before production.
- 01Share the application and any drawing, sample or photo you have.
- 02We review feasibility and quote from sufficient drawings or specifications.
- 03We agree any sample or process validation required for your part.
- 04Production starts after the agreed validation and written approval.
Before you request a sample
Does the supplied assembly include the conductive carrier?
Yes. The finished assembly includes the contact and its stamped or formed conductive carrier. Share the complete assembly drawing or sample, including carrier holes, bends, contact position and orientation, so we can review the unit you need to install.
What determines the welding or brazing process?
The contact material, carrier material and thickness, joint geometry and required finished condition determine the process. Provide the current joining specification if one exists. We confirm the suitable route during technical review.
How are joint position and inspection requirements agreed?
Identify the critical dimensions, contact orientation and acceptance criteria on the drawing or sample specification. Dimensional and visual checks are agreed for the finished assembly; bonding, shear or cross-section checks are included when specified in the inspection plan. Test methods and limits are confirmed for the project.
Can we review a sample before ordering production?
Yes. Assembly samples, tooling needs, sample charges and freight are assessed for the particular part before work starts. We can quote from sufficient drawings or specifications and agree any validation needed before mass production.
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Need a welded or brazed contact assembly?
Send the joint location, materials, and acceptance checks for assessment.