Variable-Helix End Mills Interrupt Chatter
IMTS 2018: Mastercut Tool Corp.’s V4 Ultra line of end mills combines variable-helix, four-flute geometry with a honed cutting edge.
The PowerN coating carries a blue to red color. At approximately 4,500 Vickers, the coating is tough. Performing best in rigid setups, it is said to be useful in applications involving superalloys, hard materials, and high-heat applications. According to the company, he coating reduces friction, enables increased speeds and feeds, and improves tool life. The end mill geometry is designed to interrupt chatter for gains in longevity, throughput and surface finish in materials ranging from cast iron to steel to titanium.
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.
The more common twist drill point geometries often are not the best for the job at hand. By choosing the best point for the material being drilled, it is possible to achieve better tool life, hole geometry, precision, and productivity.
Reducing cutting fluid use offers the chance for considerable cost savings. Tool life may even improve.