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Re: Thread milling

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

ER text would be good too, so that we could check for any missing things compared to our opinion Smiley Wink

Stefan Pendl, Systemmanager CAx, HAIDLMAIR GmbH
Production: NX10.0.3, VERICUT 8.2, FBM, MRL 3.1.7 | TcUA 10.1 MP7 Patch 0 ( | TcVis 11.4
Development: C (ITK), .NET, Tcl/Tk Testing: NX12.0 | AWC 3.4 Preparing: NX12.0

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Re: Thread milling

PLM World Member Legend PLM World Member Legend
PLM World Member Legend

ER Request:

Short Description
When a right-hand thread is milled with "Climb milling" the tool will start at the bottom of the hole and cut in upward direction.
At the moment the user has the choice to: RAPID to the start point or set the Approach Feed to a feedrate, which causes a long travel time -especially after tool change.

What activity in your process is NX not able to currently handle?
Efficiently plunge into the hole at a controllable feed rate

What result are you trying to achieve? (Please provide as many details as possible.)
Rapid to a safe position above the hole, then feed in at a controllable feed rate to start level

Do you currently have a workaround? If yes, please describe it.
Work around is to cut all threads in conventional direction. This has a negative effect on quality and tooltilfe

Do you have a proposal for the solution you envision NX providing for this capability?
Use the Top Offset value from Cutting Parameter > Strategy > Extend Path to switch from RAPID to some type of feed rate the user can specify (like Approach or Step Over or Plunge)

What is the level of productivity gained from such an enhancement?
Efficiently approach and engage into threaded holes
Consistency in NX approaching methods
Being able to use climb milling direction
Improve surface and dimensional quality
Improve Tool life



Your recent call to the Global Technical Access Center, Incident Report (IR) Number 9200613 opened on 29-JUN-2018, has been researched by our GTAC software engineers. They have determined that this perceived problem is an enhancement to the current software functionality.
This IR was converted into an enhancement request (ER) on 02-JUL-2018 and is now referenced as ER Number 9200613. It is not currently scheduled for implementation.


In Non-cutting moves, specify Initial Engage > Helical, Height (a little more than the thread depth).

No the tool plunges into the hole at Engage Feed.



Patrick Delisse
KMWE - Aero Engine
NX 12.0, TC 11.2, CAMPOST V22, Vericut 8.2, TDM 4.8
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