Model making; including workshop practice, design and construction of models, a practical treatise for the amateur and professional mechanic .. (1919)
Yates, Raymond F. (Raymond Francis), 1895- ed · New York, The Norman W. Henley Pub. Co. · leaf 40
. Brass may be knurledproperly with a surface speed in the neighborhood of300 feet per minute; steel, at 200 feet. These are highspeeds and may not be obtainable without making specialarrangements. If not obtainable at all, then we may usethe best speed possible. The speeds mentioned referto the… … Fig. 16—Turning down a small steel rod screw head of the same size, the 200 feet per minute woulddemand 763 turns in a minute of time. Where the toolis mechanically controlled, we may reduce these speedsto very ordinary ones; say, 60 feet per minute for brass,and 40 feet for steel. A special…
Machinery
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