Sheet Metal Fabrication for Electronics
Sheet metal fabrication for electronics at K-Display centers on equipment chassis, card cages and subracks, instrument housings, front panels, covers, and mounting plates. The chassis take the board standoffs and power supply mounts, and the front panels take the displays, switches, and connectors.
Chassis, card cages, housings, and front panels for electronics
An electronic enclosure carries the boards, connectors, display, and power supply, and in electronics sheet metal fabrication its accuracy decides whether boards drop onto their standoffs and connectors meet their cutouts. We cut and form chassis, card cages, instrument housings, front panels, and shielding partitions in aluminum, carbon steel, and stainless steel, press in standoffs and self-clinching nuts, and powder coat. We form card cages and subracks to the 482.6 mm width of the 19-inch series (IEC 60297-3-100).
A cover seats on the chassis rim, and the divider inside adds a second seam. A seam conducts across the joint only where the metal stays flat and bare, which sets the flange width and the fastener spacing.
What we make for electronics
- Chassis, card cages, and subracks
- Formed steel and aluminum chassis with board standoffs, power supply mounts, fan cutouts, and connector openings, plus card cages and subracks with guide slots and backplane rails at the board pitch.
- Instrument housings
- Bench-top and rack-mount housings with removable top and bottom covers, formed feet, and handle mounts for test, measurement, and control instruments.
- Front panels and bezels
- Cutout panels for displays, switches, connectors, and indicators, with legends silk-screened or labeled.
- Covers and access plates
- Screw-down and hinged covers with captive fasteners and gasket lands for serviceable equipment.
- PCB mounting plates and brackets
- Board carriers, mounting plates, brackets, and cable clamps that fix components inside the chassis.
- Shielding partitions
- Internal walls and partition plates that separate circuit sections, with flat flanges and gasket lands at the seams.
What electronics jobs require
- Board-to-chassis fit
- Board outline, standoff locations, connector envelopes, and cutout positions in one coordinate system, since the chassis is cut and formed to the same datums.
- EMI shielding provisions
- Panel-to-panel continuity, gasket lands, aperture size limits, and grounding studs, with the FCC Part 15 or other EMC limit the design targets.
- Ventilation and thermal openings
- Louver, perforation, and fan cutout patterns, with the open area they must provide and the airflow direction.
- Sheet thickness and RoHS restrictions
- The sheet thickness of each part, and any RoHS restriction you name on the material.
- Hardware list
- Self-clinching nuts, studs, standoffs, and captive screws by part number, with the sheet thickness each is rated for.
- Panel artwork
- Legend text, colors, and positions for each front panel, supplied as artwork.
Four standoffs hold the board while its edge connector reaches the panel opening. The tolerance on each standoff position adds to the tolerance on the connector position, and the total decides whether the board seats and the connector clears.
How electronics work runs
Cut and form
We laser cut and punch the flat blanks, cutouts, and vent patterns, then form the chassis on the press brake, holding card guide and rail positions to the board pitch through forming.
Join and fit hardware
We spot weld the panels, or fasten them with screws into self-clinching nuts, and press in standoffs and captive fasteners before powder coat. We mask the seam flanges and ground pads so the seams conduct across bare metal.
Finish, mark, and assemble
We powder coat, apply panel legends by silk screen or label, and assemble the chassis and covers. Parts ship assembled or as loose panels, packed for board population or final assembly.