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This note deals with an investigation into the establishment of
manufacturing techniques, on a production scale, for surface
grinding, high tensile heat resistant alloy sheet approximately
7 feet by 5 feet. Rigid manufacturing tolerances are demanded
in which surface finish must not exceed 10 micro-inches and
the thickness tolerance is plus or minus 0. 0002 inches.
The information contained in this report applies to the surface
grinding process in general and can be used to aid production
planning, as a correct estimate of wheel life when operating
under set conditions can be made, and the necessary time for
redressing allowed. Results from the work carried out suggest
that it may be beneficial to pass components to be surface ground
under a roughing wheel (Lumsden) type machine, which will set
the constant metal thickness for final finishing. In this way a
correct estimated time could be allowed for the operations
roughing and finish grinding at optimum conditions. |
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