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Title: Size and Variability of Cast Steel Shot Particles
Author: Dr. David Kirk
Source: TSP, Vol 23 / Issue 1, Winter 2009
Publication year 2009
Document number: 2009005
Number of pages: 9
Abstract:
Academic Study Dr. David Kirk
INTRODUCTION
Size is probably the most important property of cast steel shot. It affects saturation intensity, coverage rate and depth of work-hardened layer. Any variability of shot
size is therefore important. Specifications, such as SAE J444 and AMS 2431, nominate cast steel shot size in terms
of sieving results. Hence we have nominal shot sizes based on sieve mesh spacing. Cast steel shot size can also be associated with the diameter of a sphere. That is
convenient because (a) cast steel shot particles are approximately spherical and (b) a sphere is the only geometrical figure that has only one dimension. Association of a
particle’s size with sphere diameter is based on the concept of its “equivalent sphere”.
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This page last revised: 03/04/2009