Date of Award

5-1980

Degree Type

Thesis

Degree Name

Master of Engineering (ME)

Department

Mechanical Engineering

Supervisor

Dr. J. Tlusty

Abstract

The thesis investigates roll turning for the maintenance of steel mill rolls at DOFASCO and culminates in the specification of a roll turning lathe. The thesis can basically be divided into three main categories: (1) The application of steel mill rolls for both hot and cold rolling processes, their requirements and characteristics.

(2) Present roll maintenance practices and machinery. All rolling mill rolls require a regular redressing to restore the specified surface quality and the specified cylindricity which is necessary to produce a high quality product. Roll surface conditions prior to machining are of particular interest. A new approach to the maintenance of steel mill rolls is investigated. This is the replacement of roll grinding, which is generally applied throughout the steel industry, by roll turning.

(3) The economic justification for roll turning leads to the development of specifications for the selection and procurement of a roll turning lather for the maintenance of steel mills rolls at DOFASCO.



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