CUTTING TOOL AND CUTTING PLATE THERE FOR Russian patent published in 2013 - IPC B23B27/04 

FIELD: process engineering.

SUBSTANCE: cutting tool comprises plate holder with head and cutting plate coupled with holder that has top and bottom surfaces, peripheral lateral surface extending there between and including front and rear end surfaces, peripheral edges formed at intersection of top and bottom surfaces with peripheral side surface. Note here that, at least, one section of, at least, one of peripheral edges comprises cutting edge while heat includes plate seat open toward holder front end. Note that said seat includes top and bottom surfaces directed in equal lengthwise direction. Note that plate seat bottom surface comprises first contact section located nearby its rear end and second contact section located nearby its front end. Note that clamping contact between the firs of, in fact, cutting plate V-like location surfaces and plate seat bottom surface originates solely at said first contact section. Note that clamping contact between the second of, in fact, cutting plate V-like location surfaces and plate seat bottom surface originates solely at said second contact section. Mind that surface elements of the second, in fact, V-like surface make obtuse sharpening angle α2 while surface elements of the first V-surfaces make sharpening angle α1 smaller than α2.

EFFECT: higher reliability.

20 cl, 26 dwg