Chemical Burnishing
Chemical burnishing
Chemical burnishing is used to achieve a surface with a medium lustre. Burnishing is often used together with glass blowing and grinding in order to accentuate the structure of the metal.
Technical specifications:
- E7
Advantages/Disadvantages:
- Burnishes the whole blank, regardless of the geometry of the blank
Application:
- Decorative items
- New technical items where burnishing is desired on difficult geometries
Effect on scratches and minor flaws in the surface:
- Not very effective at removing scratches, etc.
- Drawing bands slightly visible
- Removes the naturally forming oxide layer
Structure and appearance after treatment:
- Medium lustre
- More matt than with mechanical burnishing
Suitable alloys:
- Alloys of aluminium
- Alloys on the basis o AIMg and AIMgSI
- Pure alloys such as A1 99.5
- Pure alloys give a higher lustre
- Alloys with copper should be avoided
Chemical Burnishing
Glass Blowing/ Burnishing
