At NEDC, we are a build-to-print vendor specializing in precision laser cutting and custom solutions for materials like epoxy preforms. In my few years here (7 if we’re counting—please don’t count though), I’ve seen customers include odd instructions on their prints, often implying or requesting specific cutting or packaging methods. These requests frequently drive up costs unnecessarily, despite the potential for material-efficient processes. For whatever reason, epoxy preforms seem to attract the most of these peculiar requests. Oftentimes, I see customers write “DO NOT LASER CUT—MUST BE DIE CUT” on their prints. I always wince at this, as it often stems from a fear that laser cutting might damage the material—something I’ve seen happen. However, I believe working with a precision laser cutting vendor like NEDC, which offers custom solutions tailored to material-specific needs, could resolve many of these concerns. I say this with two caveats and one comment:
Comments about Laser vs. Die Cutting Epoxy Preform Materials
Caveats:
A. There are some applications which I’ve seen where laser cutting is prohibited for a justified reason(s)(many not though).
These can include:A tougher preform material where laser cutting just burns too hot, too long. I’ve seen very few of these.Thin cross sections in the preform create precarious situations where I’d be nervous about burning any extra material.
B. Die Cutting does offer a better cut 99% of the time- there is no question about that- however, in complex preforms it can drive the cost up dramatically. Tooling on complex shapes that resemble circuit boards can send prices soaring.
Comment:
- Some concerns I’ve heard when laser cutting epoxy preforms:
A. My edges will be burned so it won’t cure/flow properly- in my experience with OUR laser cut preforms this has never made a difference. It could be an entirely different story with another supplier. As a side note on this- curing of the edges a certain amount may actually may the preform a perfect fit for the application because when the edges cure – it stops it from flowing beyond the bond line intended space.
B. The RF signal won’t be properly shielded because of the burning, then subsequent attempt to cure. Again, I’ve never seen our laser cut preforms make a difference with that. However, I’m sure it could.
Pictures for a Juxtaposition of Laser Cut vs Die Cut
I’ve assembled some pictures below of what Laser Cutting vs Die Cutting Epoxy Preforms looks like to show a minor juxtaposition. If it was my money- I’d give this a hard look before tossing a note on the print “NOT LASER CUT– MUST BE DIE CUT”.
More Information
NEDC specializes in precision die-cutting and custom laser-cutting of epoxy preforms from sheeted goods, using material-efficient processes tailored to your project’s needs. Whether you’re exploring build-to-print requirements or seeking solutions for specialized materials, our expertise ensures optimal results. For detailed insights into precision laser cutting or die-cutting techniques, visit our custom laser cutting services page or contact our team at sales@nedc.com.