multiblade machining
TRANSCRIPT
SolidCAM 2013
Application Tutorial: Multiblade Machining
©1995-2014 SolidCAM
All Rights Reserved.
Contents
iii
Contents
1. Introduction............................................................................................1
2. CAM-Part Definition................................................................................5
3. Stock and Target Definition...................................................................11
4. Multiblade Roughing Operation............................................................15
5. Blade Finishing Operation.....................................................................21
6. Fillet Finishing Operation......................................................................27
7. Hub Finishing Operation.......................................................................33
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Introduction 1
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About this course
The goal of this course is to teach you how to use SolidCAM’s Multiblade Machining to machine an impeller blade. This tutorial covers the basic concepts of Multiblade Machining. Once you have developed a good foundation in basic skills, you can refer to the online help for information on the less frequently used options.
Prerequisites
Students attending this course are expected to have basic knowledge of the SolidCAM software.
Course design
This course is designed around a task-based approach to training. The guided exercises will teach you the necessary commands and options to complete a machining task. The theoretical explanations are embedded into these exercises to give an overview of the Multiblade Machining capabilities.
Using this bookThis tutorial is intended to be used in a classroom environment under the guidance of an experienced instructor. It is also intended to be a self-study tutorial.
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1. Introduction
Multiblade Machining
The Multiblade Machining operation easily handles impellers and bladed disks, with multiple strategies to efficiently rough and finish each part of these complex shapes. All the blade surfaces are machined in a single operation. Various cutting strategies are supplied for roughing and finishing of the impeller parts. Multi-bladed parts are used in many industries. This operation is specifically designed to generate the necessary tool paths for the different multiblade configurations.
Some of the advantages of this powerful operation are:
Powerful engine for machining impellers.
Minimum inputs needed
Automatic tool axis control
Root fillets are handled with ease
Different strategies for Roughing, Blade finishing, Fillet finishing, and Hub finishing
A Multiblade impeller has the following elements:
1. Hub surface
2. Main blade
3. Leading edge
4. Trailing edge
5. Fillet
6. Splitter
7. Shroud
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CAM-Part Definition 2
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The CAM-Part definition process for the impeller part consists of the following stages:
• CAM-Part creation. At this stage, you have to define the CAM-Part name and location. SolidCAM defines the necessary system files and a folder to allocate the place to store SolidCAM data.
• CNC-controller definition. It is necessary to choose the CNC-controller. The controller type influences the Coordinate System definition and the Geometry definition.
• Coordinate System definition. You have to define the Coordinate System, which is the origin for all machining operations of the CAM-Part. You can create multiple CoordSys positions and in each machining step select which CoordSys you want to use for the operation.
The following exercises describe the full process of the CAM-Part definition. It is recommended to go through the stages in order to understand how the CAM-Part features are built. For this purpose, you have to turn off the automatic CAM-Part definition.
Before you start, select SolidCAM Settings command from the SolidCAM menu. In the left pane, select Automatic CAM-Part definition. In the right pane, click the Turning tab and clear the following check boxes: Create machine setup, Definition of Stock, and Definition of Target.
These settings can be turned back on at any time.
CAM-Part creation
Coordinate System de�nition
CNC-Machine de�nition
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2. CAM-Part Definition
CAM-Part Definition
1. Double click the SolidWorks icon.
2. Browse to open the SolidWorks part Impeller Part.
3. Click SolidCAM > New > Milling.
4. Accept the default part file name and path and click OK.
The Milling Part Data window displays.
5. In the CNC-Machine list, click DMU60_NEW. Leave the fields of Program number & Subroutine number with the default settings.
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6. Click Define button in the Coordinate System tab to set the coordinate system for this part.
7. In the Place CoordSys origin to list, click Top center of model box.
8. Select the face as shown in the image.
9. Click
The CoordSys Data window displays.
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2. CAM-Part Definition
10. Click OK in the CoordSys Data window.
The defined Coordinate looks like this:
11. Click to confirm the CoordSys Manager.
12. Click to come out of the Milling Part Data window.
The CAM part is now defined.
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Stock and Target Definition 3
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To define the stock you have to follow the steps mentioned in this chapter.
1. Click the Feature Manager Design Tree icon.
2. Click Design Model > Solid Bodies > Importiert3 > Show.
The selected stock should look as shown in the image:
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3. Stock and Target Definition
3. Click the SolidCAM icon.
4. Right click Stock > Define.
5. In the Defined by list, click 3D Model.
The defined stock should look as shown in the image.
6. Click
The target is automatically picked up by SolidCAM.
The stock is now defined.
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Multiblade Roughing Operation 3
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1. Right click Operations > Add Milling Operation > Multiblade Machining.
2. In the Technology list, click Roughing.
3. Click the Geometry page.
4. In the Strategy list, click Offset between Hub and Shroud.
5. Click the New icon under the Blades, Splitters, Fillets section.
6. Select the faces as shown in the image.
You have to pick up all the blades, shrouds, and fillets of these three highlighted parts of the impeller. You have to select total 22 faces.
7. Click
8. Keep an offset of 0.35 mm in the Stock to leave on option.
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3. Roughing Operation
9. Click the FeatureManager Design Tree icon.
10. Click Design Model > Surface Bodies > Surface-Trim 1 > Show.
11. Click the New icon under the Hub section.
12. Select Surface -Trim 1 from the design tree.
13. Save the name as Hub. The same hub surface will be used in the entire document.
14. Click
The Hub can be a small segment next to the blade. You do not require to select the entire Hub. SolidCAM picks up the required surface for machining.
15.Keep an offset of 0.35 mm in the Stock to leave on option.
16. Click the New icon under the Shroud section.
17. Select the face as shown in the image.
18. Click
19. Click Tool > Select.
20. Click icon to add a new tool.
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21. Select TAPER MILL as the tool.
Taper ball nose is the most commonly used cutter for machining impellers as it is very rigid and provides very good results.
22. Enter the parameters as shown in the image.
23. Select BT40 ER 32x60 Holder.
24. Click Select.
You do not require to set the parameters in the Levels page. Keep the parameters as default.
25. Click Tool path parameters > Technology.
26. Enter the values as shown in the image.
27. Click the Surface quality tab.
28. Set the Machining tolerance limit as 0.05 mm.
29. Click the Sorting tab.
30. In the Method list, click Zigzag, start from leading edge.
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3. Roughing Operation
31. Click the Save & Calculate icon.
32. Click the Simulate icon once the tool path is calculated.
The Simulation window displays.
33. Click the Play icon.
The calculated tool path should look as displayed in the image:
34. Click SolidVerify.
The final cut stock should look as displayed in the image:
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Blade FinishingOperation 4
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1. Right click the roughing operation > Add Milling Operation > Multiblade Machining.
2. In the Technology list, click Blade finishing.
3. Click the Geometry page.
4. In the Strategy list, click Offset between Hub and Shroud.
5. Click the New icon under the Blades, Splitters, Fillets section.
6. Select the faces as shown in the image.
7. Click
8. In the Hub list, click Hub.
This is the same surface that you had selected in the roughing operation.
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4. Blade Finishing Operation
9.Click the New icon under the Shroud section.
10. Select the face as shown in the image.
11. Click
12. Click Tool > Select.
13. Select the same tool that was used for the earlier roughing operation.
14.Click Tool path parameters > Technology.
15. Enter the parameters as shown in the image.
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16. Click the Save & Calculate icon.
17. Click the Simulate icon once the tool path is calculated.
The Simulation window displays.
18. Click the Play icon.
19. The calculated tool path should look as displayed in the image:
You will now create finishing of the splitter. For that, you have to save and copy this operation.
20. Click the Save & Copy icon.
21.Click the New icon under Blades, Splitters, Fillets section.
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4. Blade Finishing Operation
22. Select the face as shown in the image.
23. Click
24. Click the Save & Calculate icon.
25. Click the Simulate icon once the tool path is calculated.
The Simulation window displays.
26. Click the Play icon.
The calculated tool path should look as displayed in the image:
You have completed the machining of the blade and splitter. In the next chapter you will look at machining of the fillet.
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Fillet FinishingOperation 5
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1. Right click the blade finishing operation > Add Milling Operation > Multiblade Machining.
2. In the Technology list, click Fillet finishing.
3. Click the Geometry page.
4. Click the New icon under the Blades, Splitters, Fillets section.
5. Select the faces as shown in the image.
6. Click
7. In the Hub list, click Hub.
8. Click Tool > Select.
9. Select the same tool that was used for the earlier blade finishing operation.
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5. Fillet Finishing Operation
10. Click Tool path parameters > Technology.
11. Enter the parameters as shown in the image.
12. Click the Save & Calculate icon.
13. Click the Simulate icon once the tool path is calculated.
The Simulation window displays.
14. Click the Play icon.
The calculated tool path should look as displayed in the image:
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Save and copy this operation to complete the machining of the splitter.
15. Click the Save & Copy icon.
16. Click the New icon under Blades, Splitters, Fillets section.
17. Select the face as shown in the image.
18. Click
19. Click the Save & Calculate icon.
20. Click the Simulate icon once the tool path is calculated.
The Simulation window displays.
21. Click the Play icon.
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5. Fillet Finishing Operation
The calculated tool path should look as displayed in the image:
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Hub FinishingOperation 6
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1. Right click the fillet finishing operation > Add Milling Operation > Multiblade Machining.
2. In the Technology list, click Hub finishing.
3. Click the Geometry page.
4. Click the New icon under the Blades, Splitters, Fillets section.
5. Select the faces as shown in the image.
6. Click
7. Keep a margin of 0.15 mm in the Stock to leave on option.
8. In the Hub list, click Hub.
9.Click Tool > Select.
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6. Hub Finishing Operation
10. Select the same tool that was used for the earlier blade finishing operation.
11. Click Tool path parameters > Technology.
12. Enter the value of 18 in the By maximum number option.
13. Click the Sorting tab.
14. In the Method list, click Zigzag, start from leading edge.
15. Click the Save & Calculate icon.
16. Click the Simulate icon once the tool path is calculated.
The Simulation window displays.
17.Click the Play icon.
The calculated tool path should look as displayed in the image:
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6. Hub Finishing Operation
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