Product category:
Milling cutters
News Release from: NCMT | Subject: Multi-functional metalcutting milling cutters
Edited by the Manufacturingtalk Editorial
Team on 31 March 2006
Cutters do ramp, helical, shoulder, peck
milling
Multi-functional metalcutting milling cutters that perform operations including ramping, helical milling, shoulder milling and peck drilling are available with six insert grades.
BIG Daishowa Seiki, Japan, has expanded its FullCut end mill range with the addition of versions capable of multi-functional metalcutting including ramping, helical milling, shoulder milling and peck drilling Designated FCR, the tools are available through UK agent, NCMT, which will be launching them at MACH 2006
This article was originally published on Manufacturingtalk on 22 May 2001 at 8.00am (UK)
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When introduced in 2001, FCM-type FullCut end mills for slot and square shoulder milling were the first to combine the economy of indexable inserts with eccentric relief of the cutting edge, normally found on solid carbide cutters.
This had the effect of improving the toughness of the edge without reducing its sharpness, which results from having a high positive rake angle in both the radial and axial directions.
Further advantages were reduced noise in operation as well as low cutting resistance, so the tool is both productive and accurate when used on less rigid milling machines and machining centres.
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Users of the new FCR-type FullCut mills will enjoy the same benefits, but across a wider spectrum of machining operations.
Ramping, ie increasing the tool's depth of cut as it traverses, is becoming increasingly important for producing pockets and holes in a component, especially in the die and mould and aerospace sectors.
The technique allows the higher speeds and precise interpolation capabilities of modern machining centres to be exploited, reducing cycle times and the number of cutters needed.
Six FCR insert grades are available for efficient machining of almost any material, from highly alloyed steels to aluminium.
Maximum cutting speed (vc) is 1,500m/min and feed per tooth (fz) is up to 0.25mm.
Maximum cutting depth (ap) is 8mm or 10mm per pass, according to insert type.
Tool diameter ranges from 16 to 32mm and there is a choice of integral taper - BBT 30 or 40, BDV 40 and HSK A50 or A63 - each of which employs the BIG-PLUS face-and-taper contact system for highly rigid, accurate clamping in the spindle.
The smallest diameter cutter takes two inserts while all others require three.
Tool length from the gauge line is up to 135mm.
FullCut mills have spiral chip pockets for high rigidity.
Dry cutting is normally recommended although through-holes are provided for applications where a built-up edge dictates the use of soluble oil coolant.
Secure clamping of inserts with the patented, high tensile steel 'Alpha Screw' system together with maximum support under the insert are further features.
* Further new BIG Daishowa products on show - a new range of BIG Coromant Capto turning tools for static and driven applications will be launched, featuring a two-part design in both 45 and 90 deg styles.
One advantage over single-part tools is that in the event of a machining accident, only the front end needs to be replaced.
A further benefit of the two-piece design is that longer tools may be assembled to improve access to components produced on large mill-turn centres, such as Okuma's MacTurn machines.
An expanded range of HSK tooling will be introduced, to include E and F type versions for high speed machining.
Available on the stand will be a new catalogue from the manufacturer listing DIN 69841 standard BIG Daishowa taper tools, suitable for use with all European machining centres.
There are DV types as well as BDV face-and-taper contact versions.
* NCMT at MACH 2006, NEC, Birmingham, UK, May 15-19, Hall 4, Stand 4312. Request a free brochure from NCMT ...
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