Tapping Of External And Internal Threads - Optimum Optiturn TU 2506 Operating Manual

Polished section for threading
The point angle or the shape for chasing tools is depending on the type of thread.
Also refer to:


"Thread types" on page 132


"Pitch angle" on page 137
The measure X must be larger than the depth of thread. Make save that no chip angle is being
ground as in this case there would be a strain of the profile.

Img.3-40: Polished section
for threading
3.23

Tapping of external and internal threads

Threads with smaller diameters and standard thread pitches should be tapped manually on the
lathe with screw-taps or dies by turning the clamping chuck as this is more simple to produce.
CAUTION!
Pull off the mains plug of the lathe if you want to tap a thread as described above.
Img.3-41: die
Bolts and nuts with large thread diameters, deviating thread pitches or special types of thread,
right-handed and left-handed threads may be produced by threading. For this manufacturing
there are as well tool holders and drill rods with exchangeable indexable inserts (one-edged or
multiple-edged).
Version 1.0.1 2014-05-16
X
Img.3-42: screw tap
Original operating instructions
OPTIMUM
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