Have you ever noticed a strange removal behavior in the simulation? In this QuickTip we will explain to you where this behavior comes from and how you can change it to suit your requirements.
Incremental chip removal
NX CAM QuickTip | Incremental chip removal
Heinrich Flaum | 
Heinrich Flaum explains in this video detailed, how you can change that outcome.
To look at our problem we will check the simulation for a single operation of our fully programmed workpiece. We start the playback of the NC-Text and the machine fetches the tool positioned at the starting point and starts machining. During this process, we can already see that although the machine moves linearly over the workpiece, no material is removed.
Change the settings
Right now the "Simulation setting" in the "Material removal" item in the IPW update is set to Motion-based. This means that the IPW is updated or the material is also removed after each individual movement and not directly. If you switch to "Increment Based" in the settings, you can see in the simulation that the material is removed better but still not directly.
Set the Length Increment
To achieve a direct removal of the material, you must set the "Maximum length increment" in the same setting under "Advanced". The number entered here means that the IPW is updated incrementally after x mm. With a smaller number, you can determine that the material removal is updated earlier.
As you can see it is quite simple to change the settings so that you have the material removal updated sooner.
Heinrich FlaumCAx Senior Pre-Sales Consultant
E-Mail: Heinrich.Flaum@janus-engineering.com
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