511 Каталог KYOCERA 2016 Инструмент режущий станочный Пластины Резцы Фрезы Сверла Стр.J17

Каталог KYOCERA 2016 Режущий инструмент для станков Стр. J17 0511 Lab2u

Internal Threading Toolholders SIN / CIN Internal Threading Toolholders Refer to page for applicable inserts Nominal Thread Full Profile Partial Profile Nominal Thread Full Profile Partial Profile M: Metric J7 J13 Rc(PT)(BSPT) Tapered Pipe J11 J15 UN: Unified UNF: Unified Fine Thread J9 J13 W: Whitworth J9 J15 NPT American National Tapered Pipe J11 - G (PF): Parallel Pipe J9 J15 Tr: 30° Trapezoidal - J15 Guide for Internal Threading For the internal threading, pay extra attention to “Stabilizing Bore Dia.” and “chip evacuation’. 1 “Stabilizing Bore Dia.” Because small pitch internal threading has small corner-R(re), there is variation in the Bore Dia. which may greatly influence the tool life of an insert. In order to eliminate the variation in the Bore Dia., “0” cutting (zero cutting) should be performed as the zero pass, before the first pass in threading. The Bore Dia. is cut with the specified dimension, and the first pass of threading becomes stable. 2 “Chip evacuation” If machining process is continued when chips are tangled with a toolholder and other parts of the machine, it may cause damages to the insert. Therefore, please ensure that there are no tangled chips in the machine by the following method. Set the program with the “single block” Keep the threading starting point 50mm 100mm away from the side of workpiece, and confirm that coolant is flushing down the chips for each pass. Ensure that chips are not tangled; then, start the continuous run. Std. Item J17 Threading