End Mills For Hard Milling
Greenleaf Corporation now offers Excelerator mills, a line of small-diameter end mills engineered for hard milling.
Designed to excel in milling difficult-to-machine materials, the product uses the company’s ceramic inserts. The cutter bodies, shanks and insert clamps are said to offer solid performance at spindle speeds as high as 40,000 rpm.
Typical application areas include most hardened materials above 40 Rc, as well as nickel- and cobalt-based alloys. Specifically, hard milling applications in the mold making and tool and die industries; pocket milling; and ramping and helical milling are applications for which the end mills are suited.
Reducing cutting fluid use offers the chance for considerable cost savings. Tool life may even improve.
With macros and canned cycles resident in the CNC on most contemporary turning centers, single point turning of OD threads can seem like almost a default process decision. However, for numerous applications, OD thread rolling has inherent advantages as an alternative to cutting threads.
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.