Jan. 13, 2026
Tolerances & Edge Quality in Sheet Metal Fabrication — Rollyu Precision
At Rollyu Precision, controlling tolerances and achieving superior edge quality are fundamental to our precision sheet metal fabrication services. Across industries such as medical devices, photonics, semiconductors, automation, and aerospace, dimensional accuracy and clean edges are critical to both function and aesthetics.
1️⃣ Dimensional Tolerances in Sheet Metal Fabrication
Tolerances depend on material thickness, fabrication process, and part geometry. The table below summarizes the general capabilities at Rollyu Precision:
Process | Typical Tolerance Range |
Laser Cutting | ±0.05 mm to ±0.10 mm |
CNC Punching | ±0.10 mm to ±0.20 mm |
Bending/Forming | ±0.20 mm to ±0.30 mm (depending on part size, bend length, material type) |
Welding & Assembly | ±0.30 mm to ±0.50 mm (depending on accumulated tolerances) |
Post-Machining (if required) | Down to ±0.01 mm |
Note: Medical, semiconductor, and photonics applications often require customized tighter tolerances, which Rollyu Precision achieves through controlled processes, in-process inspections, and precision fixturing.
2️⃣ Edge Quality Considerations
Edge quality directly affects part functionality, fit-up, and cosmetic appearance, especially for visible components or critical interfaces.
Cutting Process | Edge Quality Description |
Fiber Laser Cutting (Default at Rollyu Precision) | Clean, sharp edges with minimal burrs; suitable for medical-grade and cosmetic applications |
CO₂ Laser Cutting | Smooth edge finish, slightly more oxidation on thicker materials |
CNC Punching | May exhibit slight burrs or tool marks on complex features; often followed by deburring |
Post-Cut Deburring (Optional) | Removes micro-burrs for improved safety, coating, and assembly fit |
Electropolishing or Surface Finishing | Applied for medical, semiconductor, or photonics parts requiring ultra-clean, burr-free edges |
3️⃣ Why Tolerances & Edge Quality Matter
Medical Devices: Precision fit for assemblies, no sharp edges that may pose patient risk.
Photonics & Optics: Edge smoothness affects alignment and optical path stability.
Semiconductor Equipment: Clean edges minimize particle generation in cleanroom environments.
Automation Systems: Accurate mating of assemblies ensures long-term repeatability.
Aesthetics: Cosmetic panels, covers, and enclosures benefit from flawless edge finishes.
Rollyu Precision — Total Control from Cutting to Assembly
With ISO 9001 and ISO 13485 certified quality management, Rollyu Precision tightly controls each stage of sheet metal fabrication:
✅ Laser Cutting with micron-level precision
✅ CNC Bending with programmable angle control
✅ TIG, MIG, and laser welding with minimal heat distortion
✅ In-process dimensional inspections using CMM and precision gauges
✅ Post-processing including deburring, anodizing, and powder coating
Every part we fabricate is engineered for accuracy, consistency, and cosmetic excellence — ready for demanding industries where quality is non-negotiable.
Tolerances & Edge Quality in Sheet Metal Fabrication — Rollyu Precision
At Rollyu Precision, controlling tolerances and achieving superior edge quality are fundamental to our precision sheet metal fabrication services. Across industries such as medical devices, photonics, semiconductors, automation, and aerospace, dimensional accuracy and clean edges are critical to both function and aesthetics.
1️⃣ Dimensional Tolerances in Sheet Metal Fabrication
Tolerances depend on material thickness, fabrication process, and part geometry. The table below summarizes the general capabilities at Rollyu Precision:
Process | Typical Tolerance Range |
Laser Cutting | ±0.05 mm to ±0.10 mm |
CNC Punching | ±0.10 mm to ±0.20 mm |
Bending/Forming | ±0.20 mm to ±0.30 mm (depending on part size, bend length, material type) |
Welding & Assembly | ±0.30 mm to ±0.50 mm (depending on accumulated tolerances) |
Post-Machining (if required) | Down to ±0.01 mm |
Note: Medical, semiconductor, and photonics applications often require customized tighter tolerances, which Rollyu Precision achieves through controlled processes, in-process inspections, and precision fixturing.
2️⃣ Edge Quality Considerations
Edge quality directly affects part functionality, fit-up, and cosmetic appearance, especially for visible components or critical interfaces.
Cutting Process | Edge Quality Description |
Fiber Laser Cutting (Default at Rollyu Precision) | Clean, sharp edges with minimal burrs; suitable for medical-grade and cosmetic applications |
CO₂ Laser Cutting | Smooth edge finish, slightly more oxidation on thicker materials |
CNC Punching | May exhibit slight burrs or tool marks on complex features; often followed by deburring |
Post-Cut Deburring (Optional) | Removes micro-burrs for improved safety, coating, and assembly fit |
Electropolishing or Surface Finishing | Applied for medical, semiconductor, or photonics parts requiring ultra-clean, burr-free edges |
3️⃣ Why Tolerances & Edge Quality Matter
Medical Devices: Precision fit for assemblies, no sharp edges that may pose patient risk.
Photonics & Optics: Edge smoothness affects alignment and optical path stability.
Semiconductor Equipment: Clean edges minimize particle generation in cleanroom environments.
Automation Systems: Accurate mating of assemblies ensures long-term repeatability.
Aesthetics: Cosmetic panels, covers, and enclosures benefit from flawless edge finishes.
Rollyu Precision — Total Control from Cutting to Assembly
With ISO 9001 and ISO 13485 certified quality management, Rollyu Precision tightly controls each stage of sheet metal fabrication:
✅ Laser Cutting with micron-level precision
✅ CNC Bending with programmable angle control
✅ TIG, MIG, and laser welding with minimal heat distortion
✅ In-process dimensional inspections using CMM and precision gauges
✅ Post-processing including deburring, anodizing, and powder coating
Every part we fabricate is engineered for accuracy, consistency, and cosmetic excellence — ready for demanding industries where quality is non-negotiable.
Have questions about tolerance capability, edge finish, or process selection for your sheet metal parts?
Contact our engineering team to discuss your application and quality requirements.
