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Surface Wave Based Ultrasonic Technique for Finding the Optimal Grinding Condition of High Speed Steel (HSS) Work Rolls
Author(s) -
Palit Sagar Sarmishtha,
Murthy G. V. S.,
Das Tarun Kumar,
Prakash Amit,
Goel Uday Shankar,
Venugopalan T.
Publication year - 2013
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201200133
Subject(s) - high speed steel , materials science , grinding , metallurgy , ultrasonic sensor , work (physics) , composite material , mechanical engineering , acoustics , engineering , physics
Over the last few years, the use of work rolls for hot rolling of flat steel has been changed from clear chill rolls to indefinite chill, then high chrome steel and now high speed tool steel (HSS). HSS rolls are highly crack‐sensitive because of its high surface hardness. The crack propagation develops within the working surface of the roll, gradually increases in depth and width followed by a large “cats‐tongue” band type spalls of the overlying barrel surface and that leads to abnormal roll failure. This paper presents the development of surface wave based ultrasonic technique to optimize the grinding procedure for having crack free roll surface.