Serious Education & the most FUN
you can have in metal finishing
No popups, spam, registration or passwords
on this site FORUM
Brush pattern on aluminum
How do the hot rod buliders get that cresent brush pattern on aluminum instrument panels? The patten looks almost jewel like when the sun hits it. Realizing of course that they use a mill or fixture to index the pattern. What material/tool do they use to get that little cresent shape?
- Los Angeles, California
The pattern you describe is called a "machine turned surface". It is usually applied with a machine equipped with an abrasive brush or something similar. The abrasive head is indexed to provide a precise pattern. A similar effect is possible using a brush mounted in a drill press, and moved manually. A satisfactory finish depends on how well one locates each move. Experiment on some scrap metal first....
George Brackett III
- Utica, New York
If you have a question in mind which seems off topic, please Search the Site
Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.
If you need a product/service, please check these Directories:
JobshopsCapital Equip. & Install'nChemicals & Consumables
Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices
How Google uses data when you visit this site.