Multi-Flute Indexable Thread Milling
The Vardex multi-flute indexable thread mill is said to reduce thread machining cycle times. The inserts are available in either 0.
The Vardex multi-flute indexable thread mill is said to reduce thread machining cycle times. The inserts are available in either 0.988" or 1.575" (25 or 40-mm) lengths in a variety of holder styles. For high feed rates, the mills are available with as many as nine inserts. With cutting diameters as small as 0.67", the tools are designed provide excellent stability in deep holes, the company says.
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.
Applying ceramic inserts is not a simple substitution of one cutting tool material for another. There are significant process considerations that shops should examine carefully in order to realize performance and tool life expectations from ceramic inserts. Here's a look at some of the ways they are used.
Reducing cutting fluid use offers the chance for considerable cost savings. Tool life may even improve.