Rolling cutter bit design

摘要

A cutting tool having a tool body with a plurality of blades extending radially therefrom and a plurality of rotatable cutting elements mounted on at least one of the plurality of blades is disclosed, wherein the plurality of rotatable cutting elements are mounted on the at least one blade utilizing multiple side rake angles.

主权项

1. A cutting tool comprising:
a tool body having a tool axis and a plurality of blades extending outwardly therefrom; a plurality of cutting elements mounted on at least one of the plurality of blades, the plurality of cutting elements comprising:
a plurality of rotatable cutting elements mounted on at least one of the plurality of blades, wherein each rotatable cutting element is rotatable around a cutting element axis extending through the rotatable cutting element; andwherein at least one rotatable cutting element is mounted at a side rake angle less than at least one other rotatable cutting element, the at least one rotatable cutting element being at a position radially closer to the tool axis than the at least one other rotatable cutting element.