Finishing laser-cut sheet metal
Laser cutting usually leaves lighter burrs than plasma or flame, but parts still need edge work. With oxygen as the assist gas, the cut edge also carries an oxide layer that many shops remove before welding, paint or powder coat.
What laser cutting can leave
| On the edge | Tool |
|---|---|
| Light burrs | Deburring disc |
| Sharp edge | Deburring disc, level chosen for radius needed |
| Oxide layer (oxygen assist) | Oxide brush or oxide wheel |
| Surface to match a finish | Non-woven disc or belt |
Before coating or welding
Oxide and sharp edges are two common reasons for coating problems and weld defects. Handling them in their own steps keeps them from becoming a surprise at the end of the line.
What we need to recommend tools
Your machine and brand, tool size and connection, the material and thickness, the assist gas if you know it, and what the part does next.
Common questions
Does a laser leave burrs?
Often light ones. Heavier burrs can appear depending on material, thickness and settings. A deburring disc handles them.
Why remove oxide before powder coating?
Oxide can interfere with coating adhesion and weld quality, so removing it gives a cleaner bond.
Do I need an oxide brush or a wheel?
Disc-style machines use oxide brushes and roller-style machines use oxide wheels.
Related: Deburring discs · Slag removal brushes · Oxide brushes and wheels · Non-woven discs and belts · Stainless steel · Aluminum · Carbon steel · Glossary · All guides