Method of assessing tool-life in grooved tools
AssigneeUniversity of Kentucky Research Foundation
InventorsIbrahim S. Jawahir, Xiangdong D. Fang, Peng X. Li, Ranajit Ghosh
Life of this patent
Estimating the term…
Abstract
A method is provided for assessing tool-wear and predicting tool-life for a selected cutting tool performing a machining operation. The method is broadly defined as including the steps of determining a tool coating effect factor and a chip-groove effect factor for the coated, grooved cutting tool. Additionally, the method includes the calculation of a tool-life for the coated, grooved cutting tool. The method takes into account selected machining operation conditions such as the characteristics of the workpiece material to be cut, the depth of cut, the feed rate, the cutting speed and the cutting tool geometry.
Claims5
In a system having a machine with a tool for cutting a workpiece and a fixture for mounting the workpiece, a method of assessing tool-wear for a selected coated, grooved cutting tool performing a machining operation, said method comprising;
- measuring cutting tool geometry including flank wear VB, width of groove backwall wear BW, length of groove backwall wear BL, depth of groove backwall wear KT, width of secondary face wear SW and depth of secondary face wear SD;
- determining a tool coating effect factor W.sub.c and a chip-groove effect factor W.sub.g for said coated, grooved cutting tool based upon characteristics of the workpiece material to be cut, depth of cut, feed rate, cutting speed and said measured cutting tool geometry;
- and
- calculating a theoretical tool-life for said coated, grooved cutting tool under selected machining operation conditions.
Dependencies are inferred from the claim text.