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LASER CUTTNG FOR SHEET METAL
 | Laser Cutting for Sheet Metal: Overview |
Laser cutting is a precise thermal-based sheet metal fabrication process where a focused laser beam melts, burns, or vaporizes material to create clean cuts. It's ideal for complex geometries, tight tolerances, and clean finishes. |
Feature | Description |
High Precision | Tight tolerances (±0.1 mm or better) for intricate designs |
Clean Cuts | Minimal burrs, no need for extensive post-processing |
Versatile | Works on steel, stainless steel, aluminum, copper, and more |
Non-contact | No tool wear; suitable for thin and delicate sheets |
Flexible Designs | Easily handles CAD-based custom designs |
Fast Turnaround | Especially efficient for prototyping and small batch runs |
Laser Cutting Processing
CAD Design: The part is designed in software (like AutoCAD, SolidWorks).
Material Setup: Sheet metal (typically 0.5mm – 25mm thick) is placed on the laser bed.
Laser Cutting: A focused laser beam (CO₂, Fiber, or Nd:YAG) cuts per design.
Assist Gas: N₂, O₂, or air blows away molten metal and improves quality.
Post-processing (if needed): Deburring, cleaning, and surface treatment.
Laser cutting is widely used for manufacturing a variety of sheet metal parts: | |
Application | Description |
Junction Boxes | Precision cut holes and knockouts for electrical fittings |
Appliance Enclosures | Sleek, vented metal panels for appliances (ACs, ovens, etc.) |
Metal Boxes / Cabinets | Rugged and aesthetic, with detailed cutouts for electronics |
Chassis & Frames | Structural parts for servers, robots, and machinery |
Decorative Panels | Intricate patterns for architecture or retail displays |
HVAC Ducts | Precise flange and connector designs |
Automotive Components | Body panels, mounting plates, brackets |
Parameter | Value |
Material | Stainless Steel 304 |
Thickness Range | 0.5 – 5.0 mm |
Max Cutting Size | 3000mm x 1500mm |
Tolerances | ±0.1 mm (depending on material/thickness) |
Surface Finish | As-cut, brushed, or powder coated |
Cutting Method | Fiber Laser, 2-4kW |
Max Sheet Weight | ~150 kg (depends on setup) |
File Formats | DXF, DWG, STEP, AI |
Applications | Enclosures, brackets, panels, signage |
| Feature / Parameter | Laser Cutting | Shearing | Plasma Cutting | Waterjet Cutting |
| Cutting Method | Focused laser beam | Mechanical blade (guillotine) | Ionized gas (plasma arc) | High-pressure water + abrasive |
| Material Thickness Range | 0.2 – 25 mm (material dependent) | 0.5 – 20 mm | 1 – 50 mm | 1 – 150 mm |
| Material Types | Steel, stainless, aluminum, copper | Steel, aluminum | Conductive metals only | Almost all materials (metal, glass, stone) |
| Cutting Precision | ±0.05 – ±0.1 mm | ±0.5 – ±1 mm | ±0.2 – ±0.5 mm | ±0.1 – ±0.2 mm |
| Edge Quality | Excellent, clean, minimal burrs | Rough edge, may need finishing | Rougher than laser, often needs cleanup | Smooth, clean edges |
| Cutting Speed | Fast (for thin to mid-thick sheets) | Very fast (simple, straight cuts) | Very fast (especially on thick materials) | Slower than laser/plasma |
| Heat-Affected Zone (HAZ) | Small | None | Large | None |
| Kerf Width | 0.1 – 0.5 mm | 1 – 2 mm | 1.5 – 3 mm | 0.8 – 1.2 mm |
| Initial Setup Cost | High | Low | Moderate | High |
| Operating Cost | Medium | Low | Medium to high (gas & parts) | High (abrasive & water costs) |
| Noise Level | Low | Moderate | High (loud arc) | Low to moderate |
| Environmental Impact | Low (minimal waste, fumes managed) | Low | High (fumes, noise) | High water and abrasive consumption |
| Automation Compatibility | Excellent | Moderate | Good | Good |
| Best For | Intricate cuts, fine detail | Straight cuts, fast processing | Thick, conductive materials | Thick, non-metallic, or heat-sensitive materials |
