Resistance Spot Welding
Join overlapping sheet-metal panels, flanges, and stiffeners at repeated weld points. K-Display integrates resistance spot welding with in-house fabrication and finishing for panel and cabinet assemblies.
Join sheets where they overlap
Resistance spot welding fuses overlapping sheets at individual points without adding filler metal. Opposing electrodes clamp the metal and pass current through it, creating heat at the joint. It is useful for repeated panel connections where a continuous seam is not needed and both sides remain accessible.
Both sides of the overlap must remain accessible to the electrodes. Material, thickness, and any existing coating need to be reviewed as one sheet stack.
Connect panels without a continuous seam
Spot welding can attach reinforcing parts and join overlapping sections while keeping the assembly in sheet-metal form.
- Overlapping sheet-metal joints
- Panels and cabinets
- Repeated point joints
- Fabricated subassemblies
Make the joint while it is accessible
A return flange or installed cover can block an electrode. Because we also cut, form, finish, and assemble, spot welding can be sequenced with the operations that create—and later close off—the joint.
Establish the sheet stack
We consider the material, coating, and thickness of every layer, along with overlap and electrode reach.
Join at the specified points
Weld locations, spacing, joint requirements, and acceptable contact marks guide the spot-welding work.
Complete the panel assembly
Forming, finishing, hardware, and later assembly are coordinated around the welds and the finished surfaces.
Sheet stack and electrode access
The fused region is called a weld nugget. Electrode pressure holds the sheets together as it solidifies. Each spot is a separate joint: the material between spots remains unwelded, so this process alone does not seal a seam. Electrode contact can leave visible impressions.
Include every layer in the joint—not just one sheet's thickness. Material, coatings, overlap, electrode reach, and quantity establish process fit.
- Production fit
- Best fit depends on joint repetition, electrode access, material combination, and quantity.
Design for access and appearance
Provide a flat overlap that lets opposing electrodes contact the joint. Nearby bends, return flanges, or an enclosed shape can obstruct access. Show the assembly sequence when later operations would close off a weld location.
Define spot locations and spacing on the drawing, together with acceptable indentation and critical cosmetic faces. Identify any existing coating as well as the final finish: a coated sheet can need different welding conditions from bare material.
State sealing, load, and applicable code requirements early. A row of separate spots is not a continuous seam; those requirements may call for another joining approach or additional operations.
Separate weld points leave unwelded intervals. If the panel also needs sealing, state that requirement so it can be addressed in the joining scope.
For your spot-welding quote
Show the overlap, weld pattern, and assembled shape, along with any sealing or joint-performance requirements.
- Current drawings
- Part and assembly files with revision and joint details.
- Sheet stack
- Material grade, coating, and thickness of each layer.
- Weld pattern
- Locations, spacing, overlap, and access constraints.
- Finished requirements
- Cosmetic faces, acceptable marks, finish, and joint performance.
- Production plan
- Quantities, repeat demand, and delivery target.