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An overview of the basic turning toolpath parameters.
Type:
Tutorial
Length:
5 min.
Transcript
00:03
The Turning Part strategy, also called a cut-off or part-off strategy, cuts off a part from the rest of the stock.
00:10
You can use the remaining stock to machine more parts.
00:14
Turning Part is usually the final operation in a setup, after turning the part to the required shape and size.
00:21
In this example part, there has already been a 1/4-inch-wide cutoff tool created for this purpose.
00:27
Before you start the toolpath, zoom in to the back of the part.
00:31
You need to know the radius on the back corner of the rear edge.
00:35
On the Manufacture workspace toolbar, Turning tab, Inspect group, click Measure.
00:42
On the part, select the two edges on either side of the fillet.
00:47
The distance between them is 0.02 inches and can be used as the size of the corner radius.
00:54
From the Turning group, click Turning Part.
00:57
In the Part dialog, Tool tab, click Select to open the Tool Library.
01:03
For this example, under the Documents heading, select Tutorial6 in the list.
01:09
Next, select the .250 wide groove and cut off tool, then click Select.
01:16
Depending on the configuration of your machine,
01:18
you can select Use Part Catcher to extend a basket to catch the part before the final cut off position.
01:25
For this example, leave this option deselected.
01:28
Switch to the Geometry tab.
01:31
Back Mode sets the reference point for the cut.
01:34
Set this to the Model back position.
01:38
You want to create an edge break on the outer corner.
01:41
Select Edge Break, then set the Edge Break Type to Fillet and the Fillet Radius to 0.020.
01:50
Switch to the Radii tab.
01:52
Leave the Clearance and Retract settings at their defaults.
01:56
The break edge radius that you set on the Geometry tab is in reference to the outer radius position.
02:02
In the Outer Radius group, set the From position for this reference to the Outermost of selected,
02:07
and make sure that Stock OD is selected.
02:11
Next, you want the contact point of the cut off tool to continue all the way to the center line.
02:16
Set the Inner Radius From position to Stock ID.
02:20
There is a thirty thousandths radius on the edge of the cut off tool, so set the Distance to Cut Below Inner Radius to 0.030.
02:29
Switch to the Passes tab.
02:32
Depending on the diameter of the part and the material type, you can choose to cut off the part in one pass.
02:38
If you select Use Pecking, you can take multiple pecks for the length of the cut.
02:43
Pecking Depth sets the amount per peck and Pecking Retract controls the back off distance between pecks.
02:49
Leave these set at 0.4 and 0.08, respectively.
02:55
Another beneficial parameter is Use Reduced Feed and Speed.
02:59
If you select this parameter, you can set a radius position where the feed rate will change.
03:05
This can reduce the load on the tool at the end of the cut.
03:08
In this case, leave the default values.
03:12
Leave the defaults on the Linking tab as well, and then click OK to generate the toolpath.
Video transcript
00:03
The Turning Part strategy, also called a cut-off or part-off strategy, cuts off a part from the rest of the stock.
00:10
You can use the remaining stock to machine more parts.
00:14
Turning Part is usually the final operation in a setup, after turning the part to the required shape and size.
00:21
In this example part, there has already been a 1/4-inch-wide cutoff tool created for this purpose.
00:27
Before you start the toolpath, zoom in to the back of the part.
00:31
You need to know the radius on the back corner of the rear edge.
00:35
On the Manufacture workspace toolbar, Turning tab, Inspect group, click Measure.
00:42
On the part, select the two edges on either side of the fillet.
00:47
The distance between them is 0.02 inches and can be used as the size of the corner radius.
00:54
From the Turning group, click Turning Part.
00:57
In the Part dialog, Tool tab, click Select to open the Tool Library.
01:03
For this example, under the Documents heading, select Tutorial6 in the list.
01:09
Next, select the .250 wide groove and cut off tool, then click Select.
01:16
Depending on the configuration of your machine,
01:18
you can select Use Part Catcher to extend a basket to catch the part before the final cut off position.
01:25
For this example, leave this option deselected.
01:28
Switch to the Geometry tab.
01:31
Back Mode sets the reference point for the cut.
01:34
Set this to the Model back position.
01:38
You want to create an edge break on the outer corner.
01:41
Select Edge Break, then set the Edge Break Type to Fillet and the Fillet Radius to 0.020.
01:50
Switch to the Radii tab.
01:52
Leave the Clearance and Retract settings at their defaults.
01:56
The break edge radius that you set on the Geometry tab is in reference to the outer radius position.
02:02
In the Outer Radius group, set the From position for this reference to the Outermost of selected,
02:07
and make sure that Stock OD is selected.
02:11
Next, you want the contact point of the cut off tool to continue all the way to the center line.
02:16
Set the Inner Radius From position to Stock ID.
02:20
There is a thirty thousandths radius on the edge of the cut off tool, so set the Distance to Cut Below Inner Radius to 0.030.
02:29
Switch to the Passes tab.
02:32
Depending on the diameter of the part and the material type, you can choose to cut off the part in one pass.
02:38
If you select Use Pecking, you can take multiple pecks for the length of the cut.
02:43
Pecking Depth sets the amount per peck and Pecking Retract controls the back off distance between pecks.
02:49
Leave these set at 0.4 and 0.08, respectively.
02:55
Another beneficial parameter is Use Reduced Feed and Speed.
02:59
If you select this parameter, you can set a radius position where the feed rate will change.
03:05
This can reduce the load on the tool at the end of the cut.
03:08
In this case, leave the default values.
03:12
Leave the defaults on the Linking tab as well, and then click OK to generate the toolpath.
Manufacture > Turning (tab) > Turning > Turning Part 
Turning Part is a toolpath strategy that cuts the part off the bar stock. It may be during a bar feed operation, but not always. Parting is usually the final operation in a setup, because the part will fall off into a bin or parts catcher. Fusion is smart enough to know that this toolpath is used to cut off the back of the part. Because of that, you will find there are very few parameters that need to be changed.
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