Articles tagged with: High Speed Machining

29
July
2012

Feed Optimization

HSMWorks provides various methods for handling sharp corners in the toolpath, one of these is the ability to lower the feed rate in sharp corners, by means of the Feed Optimization options.

To enable feed optimization, enable the Feed Optimization option on the Passes tab.

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Categories: HSM Tips and Tricks

28
July
2012

Understanding HSMWorks Adaptive Clearing Toolpaths

Figure-5

HSMWorks Adaptive Clearing toolpaths reduce part roughing time by an average of 40% while reducing tool wear by half and virtually eliminating tool breaking. This article explains how Adaptive Clearing achieves these extraordinary results. After reading this you will understand how this unique technology works and how it can significantly improve CNC productivity and your bottom line.

Categories: HSM Tips and Tricks

14
July
2012

Understanding Cut and Smoothing Tolerances

CNC machine contouring motion is controlled using line (G1) and arc (G2/G3) commands. To accommodate this, CAM approximates spline and surface toolpaths by linearizing them –creating many short line segments to approximate the desired shape. How accurately the toolpath matches the desired shape depends largely on the number of lines used. More lines result in a toolpath that closer approximates the nominal shape of the spline or surface, as illustrated in Figure 1.

tolerances

Figure 1: Tolerances (Toolpath Centerline)

Categories: HSM Tips and Tricks

13
July
2012

When Are the Different Feedrates Used?

HSMWorks has a set of different feed rates that can be defined on each tool. This list describes when the different feedrates are used:

Cutting feedrate

The primary feedrate used when removing material.

Colored blue in preview and simulation.

Categories: HSM Tips and Tricks

13
July
2012

The Minimum Cutting Radius Parameter

The Adaptive Clearing strategy is designed to always produce smooth cutting passes - as long as there is stock left on a given machining level. When approaching the model for the final pass, the smoothness of the toolpath will however depend on the geometry - and the minimum cutting radius parameter.

Without specifying a minimum cutting radius, you will get a tight trochoidal motion with sharp movements - but only if the geometry has sharp corners like the indent on the right:

 

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Minimum Cutting Radius = 0

Categories: HSM Tips and Tricks

13
July
2012

Reducing Retracts With the Stay-Down Distance Parameter

HSMWorks allows you to control when you want to keep the tool down, and thereby reducing the number of retracts, using the Stay-down Distance parameter, found in the Linking group on both 2D and 3D roughing strategies and the horizontal finishing strategy:

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The Stay-down Distance Parameter

Categories: HSM Tips and Tricks

12
July
2012

Using Toolpath Fillets

Enabling fillets on a parallel finishing toolpath will primarily affect corners perpendicular to passes:

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Parallel toolpath without fillets.

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Parallel toolpath with fillets, radius = 4.0mm.

Categories: HSM Tips and Tricks

12
July
2012

Corner Rounding for 3D Contour

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Comparing sharp and smooth corners

HSMWorks 2011 introduced a new feature for rounding inner corners for the 3D contour strategy. This feature is used to avoid sharp corners and allows machining with higher feeds. The user specifies the minimum cutting radius directly and the passes are then rounded to ensure that no sharp corners occur below the given radius. Minimum cutting radii up to the cutter radius are supported.

Categories: HSM Tips and Tricks

12
July
2012

Adaptive Clearing Shallow Areas

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HSMWorks 2010 introduces support for shallow area machining in Adaptive Clearing.

 

Categories: HSM Tips and Tricks