When you are using Adaptive Milling to do a morphed spiral to rough an open region (Face Milling or geometries without walls), it can happen that a small pillar is left in the middle during the cut. Especially in hardened or very tough materials it might occur that this pillar starts to bend instead of being cut and, therefore, is a high possibility that it is getting work hardened. This can damage the tool or can heavily increase tool wear. It can also happen that the remaining pillar is getting ripped off and might remain behind in pockets or cavities of the part.
Following tools for finish toolpaths might take damage through plunging on that piece.
This is why Siemens came up with the innovative Adaptive Milling Pillar Cutting feature to address this common problem, which occurs in high dynamic cutting toolpaths. You have the ability to select the Cut with Helical Motion in the Cutting Parameters dialog in Adaptive Milling.
Automatically detects, if a small pillar is left during the Spiral Facing in Adaptive Milling
Leaves a cylindrical geometry which is milled with Helical Motion
Custom Feeds and Speeds and the Ramp Angle from the Helical Engage settings in the NCM dialog will be applied to the Pillar Cutting
The full capabilities of the Pillar Cutting are included in NX version 12.0.2
We recommend using the Pillar Cutting for hard and tough materials and a cut depth up to three times the diameter. In softer steels and aluminum, continuing with the Adaptive Pattern is still the preferred choice, since this has advantages in the machining time.
The video shows the capabilities of the Adaptive Milling Pillar Cutting.
If you are using the Cut with Helical Motion option, Adaptive Milling will automatically detect when a pillar is being left. It will leave a cylinder and cut this cylinder with a helical motion. The helical motion uses the Ramp Angle and Custom Feed & Speed parameters, which are being set in the Closed Area Engages in the NCM dialogue.
Increased Tool Life – especially in hard materials like Inconel or Titanium
Higher Process safety
Please let me know if you have any questions.
Hi Experts, this is Alexander Freund. I am serving as Siemens’ Lead Product Manager for Mold & Die in NX CAM. I have 12 years of experience in the manufacturing industry, starting out with an apprenticeship as a toolmaker. I graduated this apprenticeship with the honors of being one of the best three toolmakers in Germany in 2009. My passion is for modern high speed milling technologies, which will help customers to accomplish their jobs faster. Besides working in the manufacturing industry, I graduated as a mechanical engineer from the Wilhelm Büchner University of Applied Sciences.