Video: Maximizing Cutter Life
A shop owner describes his simple approach to evaluating cutting tool performance and finding the best parameters.
Doug Noxell, owner of Surkut Machine Technology in London, Ontario, describes how he evaluates cutting tool performance to ensure that he is running at the best parameters. “In the first 10 or 15 minutes, you can get a lot of information,” he says. Once wear has begun, the level of wear or chipping indicate specifically how to adjust speed and feed rate. In this video from MMSOnline contributor Todd Schuett, Mr. Noxell explains his tool-observation technique.
Creating threaded holes in titanium alloys calls for proper techniques based on an understanding of both the properties of these materials and the peculiarities of the tapping process.
Running rotary milling cutters at the proper speeds and feeds is critical to obtaining long tool life and superior results, and a good place to start is with the manufacturer's recommendations. These formulas and tips provide useful guidelines.
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.