In industries like aerospace, defence, rail, and automotive, custom foam inserts do more than “protect” tools. They make you appear more professional, ensure a smooth workflow process, and increase tool control.
One process designed to make foam inserts more impactful is laser marking. This allows for a production-friendly process to create foam inserts accurately at scale.
What is Laser Marking
Laser marking is considered a “non-contact process”; therefore, it uses high-energy beams (typically fibre or CO₂ lasers) to change the material’s surface. Depending on the substrate, this could be through ablation, foaming, carbonisation, or colour change.
General Laser Marking Specs for Foam Inserts
When using laser marking for foam inserts, specs matter. Typically, we use:
- Beam diameter: typically 20–100 microns
- Resolution: up to 600 DPI
- Repeatability: ±0.01 mm
- Typical marking depth for foam: ~0.1–1 mm (depending on settings and foam density)
Laser Types at Red Box Foam
At Red Box Foam, we use two types of lasers, both of which are used for entirely different purposes. These are:
CO₂ Lasers
CO₂ lasers have a wavelength of 10.6 µm. Because of this, this laser system is more suitable for closed-cell foams like PE. For instance, marking the insert foam with tool numbers. It also works well with plastics, wood, and anodised aluminium.
Fibre Lasers
Fibre Lasers, on the other hand, have a wavelength of 1.06 µm. This shorter wavelength makes it more ideal for hard plastics, metals, glass, and tools. Generally, we use this laser for tool markings, for example, adding serial codes or batch IDs.
Benefits of Laser Marking Foam Inserts
Zero Tool Wear
Unlike mechanical engraving or stamping, laser marking is completely contactless. As a result, instead of cutting the foam with a physical tool, it uses a beam of light.
Because of this laser-engraving foam process, there’s zero mechanical friction. This means, from a machine perspective, no tool wear over time, making it more ideal for large production runs.
Batch Production-friendly
The accuracy of laser systems is unbelievable. They have positioning accuracy as tight as ±0.01 mm.
This, matched with zero tool wear, means that you can precisely replicate thousands of laser markings for foam inserts in batches of hundreds, thousands, and millions.
CAD/CAM Integration
Laser marking systems can also be fully integrated with CAD/CAM design systems. This alone allows for more precise alignment of marketing on foam inserts.
Integrating the laser marking with a digital system means each marking will be placed where it should be. Therefore, it helps avoid misaligned labels or markings that could interfere with fit or function.
No Ink, Chemicals, or Consumables
Laser marking also doesn’t require any printing inks, dyes, chemicals, or stencils. Because of this, it’s a much cleaner and environmentally friendly process than traditional foam marking methods.
How Laser Marking Foam Inserts Works
At Red Box Foam, we follow a 5-step laser marking process to ensure a precise and production-friendly process:
- Step 1: CAD Foam Layout Design: Our in-house design team uses advanced CAD software to create a detailed foam layout.
- Step 2: Laser Program Setup: We then convert the CAD design into a laser marking program and define parameters like marking depth, number of passes, and laser speed and power.
- Step 3: Material Positioning: The foam sheet is then positioned in the CNC laser bed. Automatic alignment features ensure that the foam sheet is positioned correctly.
- Step 4: Laser Marking Execution: Afterwards, the laser carries out the marking process according to the programmed tool paths.
- Step 5: Quality Check & Verification: Finally, our team reviews the foam inserts. We do this via a visual inspection and by verifying the dimensions.
Real-World Applications
There are many ways in which laser-marked foam inserts can be used. Some popular use cases include:
- Shadow Boards: Ideal for tool chests or storage units to improve tool control.
- Aerospace and Defence Kits: Perfect for marking serial numbers or QR codes for auditing and traceability.
- Branded Foam Presentation Cases: Completely customized foam, including a logo and product codes.
Why Choose Red Box Foam?
At Red Box Foam, we combine hands-on expertise with precision technology to deliver remarkable results.
We have access to both types of laser marking systems, CO₂ and fibre, so we’re able to handle an array of tool control foam projects.
Both tools are also integrated with the latest CAD systems, ensuring that each cut is made with extreme accuracy.
Alongside this, we’re based in the UK and operate under the ISO 9001 process traceability, offering quick turnaround times and transparent production.
Contact Red Box Foam Today
If you’re interested in permanent foam marking, consider contacting our team at Red Box Foam. Our team will help you through every step of the process, from CAD design all the way to the final product.
See the difference we can make today.