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Deburring is a finishing process used in spectacle frame manufacturing to remove rough edges, flashes, or sharp protrusions left over from the molding or cutting process. This step is performed on both plastic and metal frames to make the final product safe and smooth.
read more about deburring in frame finishing ...The purpose is safety and comfort. Any sharp edges, particularly around the hinge or nose pad area, could irritate the wearer's skin. Deburring smooths these rough spots, which makes sure the frame feels comfortable during long periods of wear.
On plastic or acetate frames, deburring is often done using a tumbling process. The frames are placed in a rotating drum with small wooden pegs, ceramics, or abrasive media. This slow tumbling action gently buffs and smooths the entire surface of the plastic frame.
For metal frames, deburring is usually done by hand using small files or specialized grinding wheels. This precision work is important, especially around the small screws and joints, to remove excess metal material left from soldering or machining.
A properly deburred frame is smooth and comfortable. This is a subtle but important quality for your backup glasses, providing a relief from any mild eye fatigue or dryness experienced during contact lens wear.
No, deburring is a gentle process applied only to the edges to smooth roughness; it does not alter the overall frame shape.
Yes, deburring is a standard, required step in the manufacturing of all finished spectacle frames for quality and safety.
No, if a frame breaks, it creates sharp edges that should only be handled by an optician or repair specialist.
If your new frames feel sharp behind your ears or leave scratches on your temples, they may have missed the deburring stage during production. Do not wear them, as this can lead to skin infections; see your optician for a professional smoothing of the frame edges.
The Vision Council. ANSI Standards for Frame Safety (thevisioncouncil.org). 2024.
Cleveland Clinic. Contact Dermatitis and Eyewear (clevelandclinic.org). 2023.
StatPearls. Ocular Adnexa Trauma (ncbi.nlm.nih.gov). 2024.
Review of Optometry. Frame Manufacturing Quality Control (reviewofoptometry.com). 2024.