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Application of moiré technique in the stress analysis of cutting tools
Author(s) -
CHANDRASEKARAN H.,
NAGARAJAN R.,
PADMANABHA K. N.
Publication year - 1978
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1978.tb01842.x
Subject(s) - moiré pattern , rake , machining , stress (linguistics) , structural engineering , cutting tool , displacement (psychology) , mechanical engineering , stress field , materials science , elasticity (physics) , computer science , engineering drawing , engineering , composite material , computer vision , finite element method , psychology , linguistics , philosophy , psychotherapist
Knowledge of the stress field in cutting tools is necessary for their strength evaluation. However, the experimental analysis of stresses in cutting tools during machining poses a number of problems in view of the steep stress gradient present. Photo‐elasticity and the ‘built‐up tool’ methods are the common techniques used for this purpose. In the present paper results on the stresses in cutting tools obtained during actual machining through the successful application of the transmitted moiré technique, are presented. In these experiments transparent epoxy tools carrying moiré gratings were used to machine commercial lead alloy at low speeds. The tool rake angle was varied. The effectiveness of moiré method, basically a displacement analysis technique, in providing useful data on tool stresses comparable with the other direct stress analysis techniques such as photo‐elasticity is also discussed in the paper.