Custom Sheet Metal Fabrication Services
Precision sheet metal fabrication services for enclosures, brackets, panels, and complex assemblies.
Reviewed by PiPrecision Engineering Team on August 25, 2026
Overview
PiPrecision produces custom sheet metal brackets, panels, enclosures, and assemblies using cutting, bending, hardware insertion, welding, assembly, and finishing. Tolerances are reviewed by manufacturing stage and final datum scheme because a cut feature, formed flange, installed insert, weldment, and completed assembly cannot share one universal accuracy statement.
Control Each Fabrication Stage Separately
Cut features, bends, hardware, welds, and completed assemblies do not share one universal tolerance. The drawing should define the function-critical requirements for each stage.
| Stage | Typical quoting basis | Requirements to define |
|---|---|---|
| Laser cutting / punching | Positioning to ±0.1 mm may be reviewed; feature, material, and thickness dependent | Hole and profile size, edge condition, burr direction, minimum web, and critical cut-feature locations |
| CNC bending | Bend angle to ±0.5° may be reviewed; flange location depends on material, tooling, and sequence | Inside radius, angle, flange length, bend relief, bend sequence, and dimensions measured after forming |
| Hardware insertion | Location and retention are drawing- and hardware-specific | Hardware manufacturer and part number, orientation, installation side, torque or push-out requirements |
| Welding | No universal tolerance; distortion and weld acceptance must be stated | Weld symbol, process, length, cosmetic class, distortion limits, penetration, and inspection method |
| Completed assembly | ISO 2768-m applies only when explicitly called out; critical interfaces require separate controls | Datum scheme, overall envelope, mating interfaces, finish, and inspection state |
Sheet Metal DFM and RFQ Checklist
Provide revision-matched 3D and 2D files so bend intent, hardware, welding, finish, and inspection are unambiguous.
- Material specification, temper, sheet thickness, grain direction, and any restricted substitutes.
- Inside bend radius, bend allowance or K-factor responsibility, minimum flange, relief geometry, and hole-to-bend spacing.
- Controlled flat pattern if mandatory; otherwise authorize PiPrecision to develop the manufacturing flat pattern from the formed model.
- Self-clinching hardware, rivets, inserts, weld nuts, assembly components, and installation requirements.
- Finish and masking, weld cleanup, deburring and edge-break requirements, quantity breaks, and inspection documents.
Documented Project Examples
Results below are specific to the linked project, part, volume, process, and inspection scope. They are not universal capability guarantees.
Engineering Resources
Use these guides to prepare drawings, tolerances, finish requirements, and inspection expectations before RFQ.
Capabilities
These are general, drawing-reviewed capabilities. The quotation confirms the applicable process, tolerance, inspection method, evidence, and any outside operation for the specific part.
Fiber laser for steel, stainless, aluminum
High-speed punching for holes and features
Multi-axis press brakes for complex forms
PEM® nuts, studs, standoffs
TIG, MIG, spot welding certified processes
Mechanical assembly and kitting
Deburring, graining, painting, plating
Quality Assurance
- First Article Inspection for new parts
- In-process dimensional checks
- Weld inspection (visual, dye penetrant)
- CMM verification of critical dimensions
Specifications
| Laser Max Sheet Size | 1000mm × 1500mm (3' × 5') |
| Laser Positioning Accuracy | ±0.1mm (±0.004") |
| Laser Minimum Feature Size | 0.5mm (0.020") |
| Laser Kerf Width | 0.1mm - 0.3mm |
| Steel Thickness Range | 0.5mm - 6.0mm (0.020" - 0.250") |
| Stainless Thickness Range | 0.5mm - 5.0mm (0.020" - 0.200") |
| Aluminum Thickness Range | 0.5mm - 6.0mm (0.020" - 0.250") |
| Bend Max Length | 1500mm (60") |
| Bend Max Force | 110 tons |
| Bend Angle Accuracy | ±0.5° |
| Bend Minimum Flange Height | 2× material thickness + 1mm |
| Overall Tolerances | ±0.3mm (±0.012") per ISO 2768-m |
Published capabilities are indicative and subject to drawing review.
Equipment
Primary Machines
- Trumpf TruLaser 5030 — 6kW fiber, 1000×1500mm cutting area
- Amada EMK 3610 M2 — CNC turret punch
- Amada HRB 220-4 ATC — 4-axis CNC press brake, 220 ton
- Amada RG 100 — 1.5-meter press brake, 100 ton
- Haeger 824 OneTouch — Self-clinching hardware insertion
- Pemserter Series 4 — Pneumatic hardware press
Inspection Equipment
- Digital Height Gauge — 0.001mm resolution
- CMM — For complex formed parts
- Surface Plate — Granite, grade A
- Weld Gauge — Fillet weld measurement
Materials
| Material | Grades | Applications |
|---|---|---|
| Cold Rolled Steel | 1008, 1010, 1018 | Enclosures, brackets, panels |
| Stainless Steel | 304, 316, 430 | Food, medical, marine |
| Aluminum | 5052, 6061 | Lightweight enclosures, heat sinks |
| Galvanized Steel | G90, G60 | Outdoor, automotive |
| Copper / Brass | C110, C260, C360 | Electrical, decorative |
Sample Parts
Why Choose PiPrecision
- 6+ yrs Export Experience
- 24h CAD Quote Review
- 1 piece Minimum Order
- 2 weeks Production Lead Time
Need Sheet Metal Fabrication?
Initial review is targeted within 24 hours for a complete RFQ. Orders from one prototype are supported.
Request QuoteSheet Metal Fabrication FAQs
Process-specific answers from the PiPrecision Engineering and Quality teams.
What files are needed for a sheet-metal fabrication quote?
Provide a formed 3D model and a controlled 2D drawing with part number, revision, units, material specification and thickness, inside bend radii, bend direction and sequence where critical, grain-direction restrictions, critical dimensions and datums, hardware, weld symbols, edge and burr requirements, finish, and inspection scope. State whether formed dimensions or the supplied flat pattern control acceptance. Unless otherwise agreed, the manufacturer should develop the production flat pattern using the selected tooling and validated bend allowance rather than treating an unqualified customer flat as final.
Answer owner: PiPrecision Engineering Team
Which sheet materials and thicknesses can PiPrecision fabricate?
Published cutting references cover common carbon steel and aluminum from about 0.5-6.0 mm and stainless steel from about 0.5-5.0 mm. Forming capability can be more restrictive than cutting capability. Exact limits depend on alloy and temper, stock availability, sheet and blank size, coating or protective film, hole-to-edge and hole-to-bend distances, inside radius, flange length, bend length and tonnage, tooling, grain direction, and cosmetic requirements. Engineering confirms both cutting and forming feasibility from the drawing.
Answer owner: PiPrecision Engineering Team
How are sheet-metal bend tolerances handled?
Formed dimensions vary with actual material thickness, alloy and temper, grain direction, inside radius, V-die and punch, bend method, springback, bend sequence, and measurement setup. Dimension critical features from functional datums and identify whether dimensions apply before or after forming and finishing. Avoid stacking tight tolerances across several bends without functional need. Engineering may recommend reliefs, revised radii or tolerances, tooling trials, first-off approval, or a checking fixture for repeat production.
Answer owner: PiPrecision Engineering Team
Can PiPrecision install hardware and weld sheet-metal assemblies?
PiPrecision can review self-clinching hardware, TIG or MIG welding, resistance spot welding, mechanical assembly, and finishing as part of a sheet-metal project. Specify the hardware manufacturer, exact part number and installation orientation; material condition and finish sequence; weld symbols, process or code, filler and workmanship class where applicable; cosmetic zones; distortion limits; and required leak, strength, penetrant, or dimensional tests. Welding-procedure or personnel qualifications must be requested and verified before quotation rather than assumed.
Answer owner: PiPrecision Engineering Team
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