: Pitch
: Tolerance of pitch diameter for producing internal thread
: Shrinkage after cutting
(Set up in the middle of pitch diameter tolerance)
22. Features of MC-Helical Thread Mills
─Metric thread ─Metric thread
: Difference between of basic thread profile and O.D. of the cutters.
[ Minor dia. basis] [ Tool basis]
Tool cut Tool transverse


Description of products
■Approaching and leaving to and from work material
On approaching and leaving to and from work material, the cutter must always be traversed in
helical interpolating movement so that the cutter enables smooth cutting in and out. And it is
necessary to cut the material gradually by the lead of screw thread. Otherwise, threads can be
where,
thinned.
: Nominal size of internal threads
: Basic minor diameter of internal threads Initial cutting A<B
: Minor diameter before cutting
: Outside diameter of tool
■Helical cutting trouble countermeasure
: 0.866025P
Trouble location
: Pitch Finished internal thread Finished internal thread Finished internal thread Finished internal thread Tool Environment
Trouble contents
: Tolerance of pitch diameter for producing internal thread Cutting sound,
Chattering Gouges Burrs Taper Chipping
Check section : Shrinkage after cutting mechanical vibration
(Set up in the middle of pitch diameter tolerance)
Hardness Pay attention to variations.
Work material Shape ・Pay attention to cutting position, material thickness, etc.
■Thread Milling Programmer
: Difference between ofNC program
basic application
thread profile and O.D.for thread
of the mill
cutters.
Prepared hole ・Pay attention to work hardening and inclination. ・Increase prepared hole size as much as possible. ・Pay attention to work hardening and inclination.
It’s easyMachine tool
to create a program with Thread Milling Programmer. ・Pay attention to rigidity.
Tooling
Simply select ・Pay
a tool to use and input a “nominal diameter”, “pitch”, “tapping attention
length” andtoother
rigiditynecessary
and grip.
Jig ・Pay attention to rigidity.
■ Approaching
information and
to create leaving to and from work material
a program.
Cutting conditions ・Lower cutting speed and feed.
You can output the created program as an NC program file or text file and
・Use
Cutting fluidand leaving to and from work
On approaching material, the
insoluble cutter of
oil instead must always be
water-soluble traversed
oil. Use insolubleinoil with extreme pressure additive.
send it directly to your machining center.
helical interpolating movement so that the cutter enables smooth cutting in and out. ・Add
Andzero-cut
it is process. ・Perform rough
・Perform rough
cutting and finish
necessary to cut the material gradually・Add
by the leadprocess.
of screw thread. Otherwise, threadscutting
can and
be finish ・Perform rough
Download Thread Milling Programmer from our zero-cut
website. cutting in the radial
cutting in the radial cutting and finish
Processing method ・Perform rough cutting and finish cutting in the radial direction. Perform
thinned. direction. Perform
direction.procedure and basic instructions for use is also available.
cutting in the radial
rough cutting and
An instruction manual describing the installation rough cutting and direction.
finish cutting in the
finish cutting in the
depth direction.
depth direction. Initial cutting A<B
Notes Selection ・Use MC-HLC. ・Use MC-CSLC. ・Use MC-HLC.
Helical thread
We do not guarantee the accuracy
Design of internal
・Use smaller rake. threads of NC・Use
programs created in Thread Milling
larger rake. ・Use Programmer.
proper rake. ・Use smaller rake. ・Use proper rake.
mills
Thread Milling Programmer
Resharpening has been tested and verified on Windows 10. ・Use proper rake.
We cannot be held liable for any problems resulting from the use of NC programs created in Thread
Milling Programmer.
Thread Milling Programmer cannot be used on smart devices.
(It works on Windows 10 only.)
■Thread Milling Programmer NC program application for thread mill
It’s easy to create a program with Thread Milling Programmer.
Simply select a tool to use and input a “nominal diameter”, “pitch”, “tapping length” and other necessary
information to create a program.
You can output the created program as an NC program file or text file and
send it directly to your machining center.

Download Thread Milling Programmer from our website.
An instruction manual describing the installation procedure and basic instructions for use is also available.

Notes
We do not guarantee the accuracy of internal threads of NC programs created in Thread Milling Programmer.
Thread Milling Programmer has been tested and verified on Windows 10.
We cannot be held liable for any problems resulting from the use of NC programs created in Thread
Milling Programmer.
Thread Milling Programmer cannot be used on smart devices.
Information
Technical


(It works on Windows 10 only.)


Technical-78