Metal tools and implements – making – Blank or process – Rotary cutter
Patent
1989-08-04
1995-07-11
Bilinsky, Z. R.
Metal tools and implements, making
Blank or process
Rotary cutter
407119, 408144, B23B 2716, B23C 520
Patent
active
054310725
ABSTRACT:
The tool face 12 and the flank 13 as well as the cutting edge 14 of a carbide cutting tip 19 for the fine machining of bores or the like are coated with a thin hard-material coating 21, 22 of TiC or TiCN by the PVD method and this coating is not partly ground off again subsequently, as practiced in cutting tips coated by the CVD method to restore a shaper cutting edge. As a result of the fully retained coating, inter alia both the flank wear is reduced and the chip flow over the toll face is improved, which produces an excellent surface quality of a bore. The cutting tip is especially suitable for single-blade reamers.
REFERENCES:
patent: 3078546 (1963-02-01), Kiernan
patent: 3882579 (1975-05-01), Peacock
patent: 4353669 (1982-10-01), Striegl
patent: 4396077 (1983-08-01), Radtke
patent: 4643620 (1987-02-01), Fujii et al.
"Mill With Coated Inserts? Sure!" Modern Machine Shop, Oct. 1987 pp. 52-59.
"PVD coatings for protecting tools against wear" by Balzers translated from VDI Journal, Sep. 1985 pp. 691-696.
"Sintered metal-coated cutting tools of high-speed steel" translated from Industrie anzeiger Dec. 1980 pp. 24-28.
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