removal rates than heavy radial engagement with lighter depths of cut. Deflection can be further reduced when using cutting tools capable of segmenting, or splitting the chips into smaller pieces. One such example is Iscar’s P290 milling system. The P290 insert shreds material into fine chips simi- lar to traditional HSS roughing cutters, dramatically reducing radial cutting forces. When applied with an extended flute milling cutter, the P290 system can efficiently cut 6" [152 mm] or more axially in any material with up to .35 times diameter radial engagement. With ports supplying coolant at every insert location, this system is perfectly suited for long reach environments,” said Carrington.
“Failure is not an option for workpieces that are expensive and production that is costly and time-consuming.”
“One of the most significant improvements for turning lately is the development of high-pressure coolant tools,” said Randy Hudgins, Iscar’s national product manager ISO turning and threading. “Our JetHP tooling line combined with 1000 psi [6.89 MPa] high-pressure coolant tooling gives better tool life and better chip control. Even at lower pressures, you can see improvements because of the pinpoint direction of the coolant. Our tooling delivers coolant from two different direc- tions, one on the top of the insert which helps chip control and one from the bottom of the tool.” Iscar’s JetHP coolant is offered on its grooving, threading, and boring lines.
Innovative Taps for Titanium, Nickel Alloys “Tapping titanium alloys such as titanium 6AL4V is more
difficult than tapping most alloyed materials, but certainly do- able with appropriate taps and thread mills featuring innovative geometry and coatings to promote maximum machinability and chip evacuation,” said Mark Hatch, product director, Emuge Corp. (West Boylston, MA). “Nickel alloys, commonly used in aerospace, power-gen and oil field applications, exhibit high hardness and extreme elastic memory and are also dif- ficult to thread. And stainless steels such as 304, 316, etc., can also present challenges due to their high ductility, low yield stress and relatively high ultimate tensile strength.” Emuge has just introduced a comprehensive line of high- performance tools for threading demanding alloyed titanium materials, ranging from taps with unique, new geometry designs to reliable solid carbide thread mills. “The new Ti
January 2015 |
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