Основной каталог Winstar 2021 - страница 686

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Indexable Thread Turning Technical Data Thread Methods External Right Hand Thread External Left Hand Thread Spindle : Clockwise Spindle : Counterclockwise Spindle : Counterclockwise Spindle : Clockwise Tool : right hand Tool : left hand Tool : left hand Tool : right hand Internal Right Hand Thread Internal Left Hand Thread Spindle : Clockwise Spindle : Counterclockwise Spindle : Counterclockwise Spindle : Clockwise Tool : right hand Tool : left hand Tool : left hand Tool : right hand Infeed Methods Infeed Methods Features • For pitches of less than 1.5mm or 16 T.P.I. • Most commonly used method on manual lathes. • Equal wear on leading and trailing edge. • Good surface finish on trailing edge. • Use on work hardening materials. Radial Infeed • Use on short chipping materials. • For threads greater than 1.5mm or 16 T.P.I. • Reduced cutting pressure on larger pitches. • Reduced chatter. • Directs chip away from the cutting edge. • Displaced in-feed angle improves surface finish. Modified Flank Infeed • First choice for internal threading. • Recommended for large pitches. • Recommended for long chipping materials. • Method divides the work between both flanks. • Results in equal wear. • Less cutting pressure. Alternating Flank Infeed • Not available on all lathes. D037