Основной каталог Winstar 2021 - страница 686

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Навигация

Thread Methods

External Right Hand Thread External Left Hand Thread

Spindle : ClockwiseSpindle : CounterclockwiseSpindle : CounterclockwiseSpindle : Clockwise
Tool : right handTool : left handTool : left handTool : right hand

Internal Right Hand Thread Internal Left Hand Thread

Spindle : ClockwiseSpindle : CounterclockwiseSpindle : CounterclockwiseSpindle : Clockwise
Tool : right handTool : left handTool : left handTool : right hand

Infeed Methods

Infeed MethodsFeatures
Radial Infeed• 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. • Use on short chipping materials.
Modified Flank Infeed• 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. • First choice for internal threading.
Alternating Flank Infeed• Recommended for large pitches. • Recommended for long chipping materials. • Method divides the work between both flanks. • Results in equal wear. • Less cutting pressure. • Not available on all lathes.