关键词: 旋转刀具, 刀具标识, 激光字符标刻, 字符识别

Abstract:

A new method of tool marking and identification was
introduced,which can mark number code on rotary solid carbide cutting tool's
surface directly with laser.First the law of laser etching carbide was studied,
and the best marking parameters were acquired by single factor experiments.
Then in order to solve the problem of distortion when capturing images of
rotating tool with bigger curvature,a character was improved by using the method of
increasing the bottom line width of the nixie tube character far from the brightly lighted
section.At last,mutation position and line width information were introduced in the traditional eigenvector algorithm.A comprehensive eigenvector recognition method was
introduced,and its accuracy rate has reached 95%,which can satisfy the demands of
tool marking and identification in area of tool life cycle management.

Key words: rotary cutting tool, tool mark and identification, laser character marking, character recognition