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Plunge Milling siemens NX

Plunge Milling is a unique milling operation that is best used in deep areas that require a long tool. Successive plunge motions take advantage of the increased rigidity when a tool moves along the z-axis to efficiently rough out large volumes of blank. The reduced radial force makes it possible to use long slender tools and maintain a high rate of material removal. Plunge Milling is attractive for finishing hard-to-reach deep walls using long slender tool assemblies.

Using Plunge Milling to rough contoured shapes usually leaves large scallops and steps. Use an In Process Workpiece in the following operations to get a more consistent remaining stock.

The distinctive characteristics of Plunge Milling are:

  • Roughs out material

  • Drills down the tool axis

  • When there are multiple regions, Plunge Milling starts at the deepest plunge depth. Each successive region then ignores the previous region.

Plunge Regions

Plunge Milling starts at the deepest plunge depth. Each successive region then ignores the previous region.

When a cavity has multiple regions, they are grouped and cut in order (bottom-up). The figure below shows a sample cutting order for multiple regions.

Multiple Plunge Region

plunge_mult_regionss

Cutting From the Top Down

Because Plunge Milling is a bottom-up operation, to cut from the top down you must create multiple operations, each with a range below the previous one. The first operation range would be from the top of the part to some midway level, the next below that, etc. Within each operation, the cutting remains bottom up.

Where do I find it?

Application

Manufacturing

Toolbar

Insert→Create Operation

Menu

Insert→Operation

Location in dialog box

Create Operation dialog box→[valid operation Type option]→Operation Subtype group→PLUNGE_MILLING

Incoming search terms:

  • NX CAVITY PLUNGE

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