Page 12 - Iscar_Article_Brochure
P. 12
In common with the aforementioned FF cutters,
they also carry the H600 WXCU inserts – another Questions & Answers
example of customer-friendly versatility - the same
insert is mounted in two functionally different
kinds of milling tools.
Q: Can fast feed milling be applied to high
temperature alloys, in particular to titanium?
A: Definitely yes, on condition that the tool
(cutting geometry, carbide grade) and the cutting
data are chosen correctly. For example, when FF
milling titanium alloys by HELIDO 600 UPFEED
indexable milling cutters, HP-type inserts should
be used and the recommended starting feed per
tooth employed.
Q: Can we operate a fast feed tool for rough
milling a full slot?
A: Yes, however, the cutting speed and the feed
per tooth should be reduced when compared
with the usual recommended values for the
machined material.
Q: Is FF milling suitable for hard steels?
The second type of MF cutters is the HELIDO A: Yes, but substantial reductions in the feed per
1200 UPFEED: this range of face mills with tooth starting values of fz will be in average 3-4
double-sided hexagonal inserts has 12 cutting times less compared to the soft steels.
edges. The cutters are intended for productive
milling plane surfaces and have the ability to Q: A virtual “radius for programming” of a FF tool
machine near to the straight wall of square is specified in catalogues and guides, what does
shoulders. High MRR and cost effectiveness per this mean
insert cutting edge make the cutters an attractive A: FF tools have a specific shape that differs from
tool for upgrading low power machines to triple F. ordinary milling cutters. For CNC programming
purposes users may consider the tool like a cutter
In consideration of fast feed milling and its with a corner radius.
moderated derivative, the main applications are:
• rough face milling especially if a machining Q: When milling, the high overhang of a tool
allowance (material to be removed) is high normally requires reduced cutting speed and feed
and a machined surface has relatively per tooth. Is it true for the FF technique?
big dimensions A: Regarding the speed – yes; and speaking
• rough milling of cavities and pockets about the feed, although, our experience shows
• sculpturing by side plunging that rather than reduce feeds, a more effective
method is to reduce the depth of cut and operate
In the majority of cases that are connected with at the unchanged fz. This not only improves the
the listed applications, the smart decision of stability of the tool and enhances chip evacuation,
introducing fast milling into a process significantly it also reduces recutting
improves productivity and cuts production costs. (in many cases the high tool overhang is a direct
12