Page 10 - Iscar_Article_Brochure
P. 10
ISCAR’s FEEDMILL family has recently been When fast feed milling became popular and
expanded by the introduction of FFQ4 shell mill adopted throughout industry, manufacturers
cutters. The cutters are intended for mounting asked, is it possible to “adjust” commonly
square single-sided inserts with 4 cutting edges. used indexable cutters for the more productive
technique of rough machining? The question was
Triple F - fast feed facing - perfectly describes particularly relevant for small manufacturers who
the main applications of the new mills, while were uninterested in purchasing specific FF tools.
the FFQ4 delivers productive roughing of plane ISCAR supplied the required answer by offering
surfaces especially if the mill overhang is high. carbide inserts that, when mounted in existed
If a fast feed milling cutter of a small diameter cutters, turned them into FF mills (Fig. 7). This
(6-20mm) is needed, the use of a solid carbide innovative approach expanded the operational
or MULTI-MASTER tool leads to good results. range of customers stock cutters.
The design of the tools allows the production of Another versatile approach involved the
a cutter with more teeth when compared with an application of a regular insert for fast milling:
indexable FF mill of the same diameter, ensuring In this method, the insert should be oriented
improved productivity. differently and held in a cutter suitable for the
high-efficiency FF technique. This principle is
There are two kinds of the MULTI-MASTER fast reflected in FF SOF 8/16 tools, intended for
feed heads; the first a multiflute design which is “triple F” – fast feed facing.
similar to the solid carbide FF tools.
The second, an economical version, has only two Heavy workpieces have their own demands.
flutes, however, due to these two flutes being When milling the workpieces, considerable inertial
“shaped” by pressing with further sintering, they loading on the feed drive places restrictions on the
feature high strength. In contrast to the multiflute table feed. The same limitations take place when
heads, this enables increase fz to achieve the workholding is poor. In these cases customers
necessary metal removal rate (MRR). In addition, cannot take full advantage of FF milling. A solution
all FF tools also have side plunge-in milling is to moderate the fast feed and simultaneously
capacity providing impressive wall surface finish increase the depth of cut. The secret is to find the
and a flat bottom during machining. Users can most efficient compromise. Fz should be higher
successfully apply the tools to the sculpturing than common values but the produced feed
of various internal and external shapes. speed (known also as table feed, feed per minute
10
