Sheet Laser Cutting Service

Sheet Laser Cutting Service

Introduction
Laser cutting is a sheet metal fabrication process that uses a high-powered laser to melt or vaporize material, leaving a precise cut edge. It is a versatile process that can be used to cut a wide variety of metal thicknesses, including stainless steel, aluminum, and mild steel.
Fabricators first convert CAD and drawing data into machine code. A laser cutting machine will then precisely remove sheet material. If any assembly or post-processing is required, our manufacturers will provide turnkey finishing to the part.
Laser cutting is often used for complex or intricate cuts that would be difficult or time-consuming to make with traditional methods, such as punching or shearing.

Capabilities
Nhat Nam provides quality laser cut components to the OEM, and specialties industries. Our equipment includes a 3000-Watt Fiber Laser with twin pallets and a 6000-Watt C3 Bodor Fiber Laser with an autoload cell for maximum efficiency.
We deliver short and medium runs alike with unmatched precision.

Sizes & Tolerances

• Blank Size: 3048x1524mm (118”x59”)
• Sheet Thickness: Up to 25mm (0.99")
• General Tolerances: Edge to edge tolerances of +/- 0.010” nominal on the top-cut surface. Thicker materials may have a tolerance deviation on the bottom face due to tapers inherent in laser cutting

Materials & Post-processing

Insert
For custom enclosures or parts, self-clinching fasteners are probably the most useful hardware components at a designer’s disposal. They solve a whole host of challenges when it comes to mounting components, and because of their compact design and low profile, they provide excellent aesthetics as well. Themost popular are PEMS Fasteners.

If you require a fastener we don’t stock, contact us – we’d be happy to source what you need, for added lead time and cost.

Part Marking
Part marking is a great way to add high-contrast markings, part numbers, logos, and more.

Finishes
Applying a finish to your sheet cut parts can not only improve their cosmetic appeal but also provide surface protection and increased performance. Below you will find some of the post-processing options and finishes we offer:

Design Guide
File Preparation Reference Sheet
File Types
Use vector files such as .DXF for 20 designs as well as for artwork such as engravings and part markings
Recommended 3D design formats:

• .STEP
• .STP
• .SLDPRT
• .PRT
  

File Optimization
Check that your design file does NOT contain:

• Duplicate or overlapping lines, curves, points, etc.
• Open curves or broken paths
• Lines with a length of less than zero
• Extraneous curves preventing the detection of boundaries
• Stray points or empty objects
  

Tolerances

• Design for edge to edge tolerances of +/- 0.010" nominal on the top-cut surface
• Designate which is the top face on your drawing
  

Kerf

• Dont forget to account for the thickness for laser cutting: 0.008-0.012"
• Kerf width generally becomes larger as the material thickness increases
  

Distance Between Features
MT = Material Thickness

• Minimum Hole to Edge Distance = 2X MT or 0.125”, whichever is smaller
• Minimum Hole to Hole Distance = 6X MT or 0.125”, whichever is smaller
• Minimum Relief Cuts = 0.010” or 1X MT, whichever is greater
• Minimum Corner Fillets = 0.5X MT or 0.125”, whichever is smaller
• Minimum Tab Thickness = 0.063” or 1X MT, whichever is greater
• Minimum Slot Thickness = 0.040” or 1X MT, whichever is greater