Indexable cutting insert

Details Indexable cutting insert Indexable cutting insert

1988-10-26

1991-07-16

Schmidt, Frederick R.

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

407114, 407115, 407116, B23P 1528

Patent

active

050320491

ABSTRACT:
The invention relates to an indexable cutting insert for face milling of engine blocks of cast iron. The insert has a free surface and a clearance surface and a cutting edge extending peripherally about the insert. The corners of the insert have a relatively large radius and therefore the setting angle gets close to zero degrees during machining of the engine block when the insert gets close to the border line of the work piece. The free surface and the clearance surface enclose an acute angle and therefore the insert has a positive cutting geometry. A land is provided between the free surface and the cutting edge. The land has a width increasing towards each insert corner.

REFERENCES:
patent: 3487515 (1970-01-01), Contrucci
patent: 3557416 (1971-01-01), Jones
patent: 3733664 (1973-05-01), McKelvey
patent: 3786540 (1974-01-01), Lundgren
patent: 4056871 (1977-11-01), Bator
patent: 4056872 (1977-11-01), Seidel
patent: 4059363 (1977-11-01), Romagnolo
patent: 4616963 (1986-10-01), Habert et al.

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