Evaluation of titanium alloy thread quality during cutting

This article concerns a new method of assessing the thread cutting process and the quality of the formed thread using the method of optical observation of the workpiece during machining. A series of digital images of the thread profile was taken in transmitted light for each tool infeed. Such images...

Full description

Saved in:
Bibliographic Details
Published inMetrology and Measurement systems Vol. 27; no. 4; pp. 563 - 574
Main Authors Zawada-Tomkiewicz, Anna, Żurawski, Łukasz, Tomkiewicz, Dariusz
Format Journal Article
LanguageEnglish
Published Warsaw Polish Academy of Sciences 01.01.2020
Subjects
Angular position
Aspect ratio
Digital imaging
Image resolution
Image transmission
liquid nitrogen
Parameters
process evaluation
Thread cutting
thread measurement
Titanium alloys
titanium and its alloys
Titanium base alloys
Turning (machining)
Workpieces
Online AccessGet full text

Cover

More Information
Summary:This article concerns a new method of assessing the thread cutting process and the quality of the formed thread using the method of optical observation of the workpiece during machining. A series of digital images of the thread profile was taken in transmitted light for each tool infeed. Such images, obtained with high resolution for three angular positions, were binarized, with the space between ridges taken in successive infeeds identified as “void”, and its projection was then parameterized. Two of these parameters, area of void and aspect ratio, were used as indicators of the technological quality of the thread. The suitability of the selected parameters for technological description of the thread was verified using the example of titanium alloy thread turning under ambient and cryogenic conditions.
ISSN:2080-9050
2300-1941
DOI:10.24425/mms.2020.134838