Sheet Metal Bending & Forming
Multi-axis 200-ton CNC press brake bending delivering precise angle repeatability, custom enclosures, and complex sheet metal assemblies right from flat laser blanks.
Precision 200-Ton Press Brake Forming
Lumicision turns flat 2D cut metal blanks into complex 3D finished assemblies. Equipped with a 200-ton high-precision CNC bending machine, we execute multi-stage bends, hems, offset flanges, and heavy custom enclosures with micron-level backgauge positioning.
From Digital CAD Blank to Formed Assembly
- Seamless Laser-to-Bend Integration: Because our laser cutting and bending operations are under one roof, our CAD engineers calculate exact bend allowances and K-factors before cutting, eliminating dimensional errors.
- 200-Ton Heavy-Duty Versatility: Tuned for sheet metals from delicate 26-gauge foils up to structural plate, guaranteeing smooth radius bends without surface cracking or die witness marks.
- Turnkey Enclosures & Chassis from Scratch: We fabricate full electronic and industrial enclosures right from scratch—including vent cutouts, PEM stud insertion, and laser welded corner seams.
- ISO 9001:2015 Verified: Every flange angle is verified using calibrated digital angle gauges and optical comparators to ensure 100% assembly fit.
Compatible Materials & Alloys
Our laser systems are optimized with assist gases (Nitrogen, Oxygen, Shop Air) and beam frequency controls for clean cuts across:
Typical Industrial Applications
- ✓ Custom electronics enclosures and server chassis
- ✓ Heavy-duty structural mounting brackets
- ✓ NEMA-rated weather-resistant electrical cabinets
- ✓ U-channels, Z-brackets, and hat-section stiffeners
- ✓ Internal PCB mounting trays and heat shield baffles
Engineering Tolerances & Capability Guide
| Material & Grade | Thickness / Envelope | Feature / Geometry | Standard Tolerance | Process & Assist Notes |
|---|---|---|---|---|
| Cold Rolled & Hot Rolled Steel (10GA - 24GA) | 0.024" to 0.135" (0.6mm to 3.5mm) | Enclosure flanges & 90° box bends | ±0.2° angular / ±0.010" (±0.25mm) flange dimension | CNC dynamic crowning with precision hardened segmented tooling |
| Heavy Steel Plate (A36 / 1020) | 0.187" to 0.375" (4.7mm to 9.5mm) | Heavy structural brackets & gussets | ±0.5° angular / ±0.015" (±0.38mm) flange | High-tonnage hydraulic air bending in heavy V-dies |
| Aluminum (5052-H32 / 3003-H14) | 0.032" to 0.250" (0.8mm to 6.35mm) | Chassis panels & heat shield bends | ±0.2° angular / ±0.010" (±0.25mm) flange | Generous punch radius preventing outer bend line cracking |
| Stainless Steel (304 / 316 #4 Polish & 2B) | 0.024" to 0.187" (0.6mm to 4.75mm) | Architectural reveals & sanitary washdown boxes | ±0.3° angular / ±0.010" (±0.25mm) flange | Urethane die film to prevent tool galling and surface scratching |
* Tighter non-standard tolerances available upon engineering review. Contact our quality department for specific GD&T and CMM inspection requirements.
Frequently Asked Technical Questions
What is the capacity of Lumicision's CNC press brake?
We operate a 200-ton multi-axis CNC press brake with dynamic hydraulic crowning compensation and an 8-to-10 foot bed length. This allows us to bend heavy 3/8" structural steel plate as well as delicate 0.030" precision aluminum instrument enclosures with consistent angle accuracy from end to end.
How do you prevent tool marks on polished stainless steel or pre-painted parts?
We utilize protective non-marking urethane die films and specialized composite tooling inserts. This creates an unmarred cosmetic bend surface, essential for architectural fascia, food-grade sanitary tanks, and visible consumer housings.
Can Lumicision calculate K-factor and flat pattern bend deductions from 3D CAD models?
Yes. Our sheet metal engineering team imports your native 3D STEP or SolidWorks models directly into our CAM bending software, applying calibrated empirical K-factors specific to our tooling and material lot to generate mathematically exact laser-cut flat blanks.
Do you offer hardware insertion like PEM nuts, studs, and standoffs?
Yes. We provide complete turnkey assembly including self-clinching PEM fastener insertion, spot welding, countersunk rivets, and edge deburring before delivery.
Have CAD Files Ready?
We accept STEP, STP, DXF, DWG, AI, and PDF drawing packages for instant tooling & turnaround evaluation.