A Quick Way to Deburr Holes in Contoured Surfaces
This video shows a device that enables machine tools to quickly deburr both sides of through holes in elliptical and contoured surfaces.
COFA tools are available sizes ranging from 0.157 to 1.614 inch (4 to 41 mm). A cassette option is available for larger holes
One of the most common methods of tapping in use today on CNC machines is 'rigid tapping' or 'synchronous feed tapping.' A rigid tapping cycle synchronizes the machine spindle rotation and feed to match a specific thread pitch. Since the feed into the hole is synchronized, in theory a solid holder without any tension-compression can be used.
The right choices in tooling and technique can optimize the thread turning process.
Consider these alternatives when conventional drilling can't do the job.