Method and system of automated measurement of micro drill bit wear

作者：Fu Lianyu^*; Li Jian; Yang Fan

来源：Circuit World, 2009, 35(3): 29-34.

DOI：10.1108/03056120910979521

• Printed circuit boards
• Physical property measurement

Purpose - The purpose of this paper is to provide a method and system to achieve automated measurement of micro drill bit wear.
Design/methodology/approach - A method and system of automated measurement of micro drill bit wear on the basis of machine vision are presented. Experiments are conducted to verify the developed method and system.
Findings - The worn area of the primary face is an appropriate index to reflect the wear condition of a micro drill bit. A machine vision based technique is an applicable tool for capturing and characterising images of worn micro drill bit. The developed system can accurately measure and characterise the wear performance of micro drill bits with different materials and different parameter designs.
Originality/value - The paper highlights the method and the system for achieving automated measurement of micro drill bit wear. The developed method and system can provide fast and precise evaluation of micro drill bit wear.

• 出版日期2009