Hongming Sheng provides precision sheet metal fabrication for custom enclosures, chassis, housings and structural components based on customer drawings and CAD files.

We support laser cutting, CNC punching, CNC bending, welding, machining, hardware installation, surface finishing and mechanical assembly for OEM projects.

Precision Sheet Metal Fabrication

Custom enclosures and chassis often require several sheet metal processes to work together before the finished part is ready for assembly.

• Laser cutting
• CNC punching
• CNC bending and forming
• TIG / MIG welding when required
• Tapping and countersinking
• PEM fastener installation
• Grinding and deburring
• Surface finishing
• Mechanical assembly

Enclosures & Chassis We Support

• Electronic enclosures
• Industrial equipment housings
• Server and rackmount chassis
• Electrical control enclosures
• Power supply housings
• Machine covers and panels
• Custom sheet metal assemblies

Materials & Surface Finishes

Fabrication Process Video

Engineering & DFM Review

Before fabrication, key sheet metal features can be reviewed to improve manufacturability and reduce assembly issues.

• Bend radius and bend relief
• Hole-to-edge distance
• Flange dimensions
• Weld joint locations
• PEM and hardware positions
• Panel and cover interfaces
• Assembly clearances
• Critical dimensions and tolerances

Hardware & Assembly Support

• PEM nuts and studs
• Rivet nuts
• Riveting
• Bolted assembly
• Hinges and latches when required
• Mounting brackets
• Final mechanical fit checks

Prototype & Repeat Production

We support prototype fabrication, trial assemblies and repeat manufacturing for custom sheet metal enclosures and chassis.

Prototype builds can help verify panel fit, mounting positions, internal clearances and assembly sequence before repeat production.

Typical Applications

• Industrial electronics
• Automation equipment
• Communication equipment
• Server and data center hardware
• Power electronics
• Battery and energy equipment
• Testing and measurement systems
• Custom machinery

Quality Inspection

• Material and thickness verification
• Overall dimensional inspection
• Hole and cutout position checks
• Bending geometry inspection
• Hardware installation verification
• Weld appearance checks when applicable
• Surface appearance inspection
• Assembly fit verification when required

Supported Drawing Formats

Common file formats include DWG, DXF, PDF, STEP, IGS and other standard 2D / 3D engineering files.

What to Send for Quotation

• 2D drawing or 3D CAD model
• Material and sheet thickness
• Required quantity
• Critical dimensions and tolerances
• Surface finish and color
• Hardware requirements
• Welding requirements if applicable
• Assembly requirements

Confidential OEM Manufacturing

Customer drawings, CAD models, samples and technical information are treated as confidential. NDA support is available for custom sheet metal enclosure and chassis projects.