Page 43 - Iscars_World_Brochure_2018

Turning Miniature Parts Drilling with SUMOCHAM
To accommodate small boring diameters, ISCAR has The small diameter range of ISCAR’s SUMOCHAM
developed positive and negative boring tools with hole making line includes new drilling heads and tools
steel and solid carbide shank options, new small size covering diameters of 4 mm up to 5.9 mm, with 0.1
inserts, and coolant channels directed precisely to the mm increments. The 4 to 5.9 mm drilling range is
insert’s cutting edges. covered by 4 sizes of SUMOCHAM DCN drill bodies
in 3xD and 5xD length to diameter ratios; and is
The tools carry new positive (single-sided) ground designed especially for this industry. A user-friendly key
EPGT and CCGT inserts. The EPGT insert has a was specifically developed to enable easy mounting
75°geometry designed for a minimum bore diameter with no set-up time.
of 4.5 mm, and the CCGT insert features an 80°
geometry for minimum bore diameter of 5.0 mm, with The medical device and implant industries have made
shank sizes in a diameter range of 4 to 7 mm. major and highly significant advances in miniaturizing
medical parts; it is up to cutting tool manufacturers
Tools for negative (double-sided) inserts Dmin=12 mm to enable the realization of these achievements by
carry ground WNGP and DNGP inserts. WNGP has an providing the tools for the job, however small.
80° geometry for a minimum bore diameter of 12 mm
and DNGP features a 55° geometry for minimum bore
diameter of 13 mm, with shank sizes in a diameter
range of 10 to 20 mm for forward and back turning
operations.

The VNGU, CNGX, CNGG and CXMG double-sided
inserts with 4 cutting edges present an alternative to
the conventional ISO standard positive inserts with
only 2 cutting edges; operating similarly to positive
inserts with the same corner angles, they provide the
added advantage of double cutting edges.

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