Performing program prove out

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In this video, you’ll apply concepts required to perform program prove out in a multi-axis machine.

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As a program is running, the operator is looking for key details to ensure that the toolpaths are cutting correctly.

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They look for things like making sure the tool isn’t going too deep;

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that the cut sounds normal, and there is no excessive noise or vibration;

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and that the material is being removed as expected without leaving anything behind.

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At this stage of the machining operation, make sure that the cutter isn’t going too deep per pass,

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and that the sound of the cut is what you are expecting.

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Also, make sure the stepover of the tool looks okay.

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It is during the roughing operation, such as this, that you want to observe for chatter.

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If it is, the feedrate could be increased, or the spindle speed could be reduced at the control.

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Here, you can see the drill.

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Things to watch for here would be stringy chips building up on the drill,

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as well as a loud noise coming from the drill if it is taking too heavy of a drilling cycle.

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During the adaptive clearing cycle, check that the cutter isn’t going too deep,

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to make sure it avoids the vise jaw; and that the chosen stepover and depth of cut are in acceptable parameters,

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with no excessive noise or vibration.

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Also, ensure that the chips are being properly evacuated.

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As the ball end mill does the final surfacing finish on the sloped surface,

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look to make sure that there isn’t excess chatter or excess noise coming from the tool.

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Excess chatter or noise indicates that the tool is taking too big of a chip load and is at risk of breaking.

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Also, observe the quality of the surface finish to make sure it is within acceptable tolerances.

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Before the part is removed from the vise in order to set it up to machine the flip side,

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it is a good idea to do a visual inspection of the part to make sure no toolpath adjustments need to be made.

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It is also a good time to correct surface finish issues,

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or areas of stock that may have been missed by the programmer when they added the toolpaths to the part.