Jan 19, 2009 - CATIA Training. COPYRIGHT .... The PPR Tree is displayed in the left of the CATIA Window ... Select the Tool Assembly tab page in Insert tab:.
Version 5 Release 19 January 2009 EDU-CAT-EN-LMG-FS-V5R19
Lathe Machining
Detailed Steps
Table of Contents Master Exercise: Crankshaft ................................................................................................................... 3 Step 1A: Open the V5 CATProduct..................................................................................................... 3 Step 1B: Define parameters of the Part Operation ............................................................................. 5 Step 2A: Define a Drilling Operation ................................................................................................... 7 Step 2B: Define a Rough Turning Operation..................................................................................... 10 Step 3: Define a Groove Turning Operation...................................................................................... 14 Step 4: Define a Recess Turning Operation...................................................................................... 18 Step 5: Define a Profile Finish Turning Operation............................................................................. 21 Step 6: Define a Thread Turning Operation ...................................................................................... 24 Step 7: Define a Sequential Turning Operation ................................................................................ 26 Added Exercises: .................................................................................................................................. 30 Step 8: Create a Ramp Rough Turning Operation ............................................................................ 30 Step 9: Modify the Design Part.......................................................................................................... 34 Step 10: Generate Outputs................................................................................................................ 36
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Master Exercise: Crankshaft Step 1A: Open the V5 CATProduct •
File/Open… Open the Set-Up.CATProduct
• •
Access the Lathe Machining Workbench: Start Lathe Machining workbench
The PPR Tree is displayed in the left of the CATIA Window • Process: The Part Operation & NC Cycles
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Product: The Geometry necessary for NC such as Stock, Part, Fixtures, Machine-Tool table, Safety Planes, Starting points, etc Resources: The shop floor resources such as Tools, Tool assemblies and Machine-tools
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Step 1B: Define parameters of the Part Operation Use the result of previous step or Open Define_PartOperation_Start.CATProcess 1.1 • • • •
1.2 -
Define the Stock Double-click on the Part Operation to edit it (1) Click on Stock icon (2) Double-Click on the Stock model (3) Activate the ‘Automatic Stock Selection for Turning Operations’ using MB3 on the Stock field
Define the Machine-Tool (4)
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Select a Horizontal Lathe machine-tool
• •
Select the LATHE.pptable as Post Processor Words table in the Numerical Control tab page Click OK
1.3 • •
Define the Machining Axis System Click on Reference Machining Axis System icon (5) Select the origin point in the Machining Axis System panel and select the center point of the stock
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Select the Z axis in the Machining Axis System panel and key 1, 0, 0 as spindle orientation Select the X axis in the Machining Axis System panel and key 0, 0, -1 as profile orientation
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Click OK to create the Machining Axis system
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In Simulation tab page of the Part Operation: Define a Stock Accuracy of 0.05mm to have a better Video Simulation
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Click OK to create the Part Operation
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Step 2A: Define a Drilling Operation Use result of previous step or Open Drilling_Operation_Start.CATProcess Select Manufacturing Program and click on Drilling icon 1.4 -
Define the geometry to machine
In Geometry tab page: • Select ‘No Point’ in the panel • Select the frontal hole on the part (put stock in no show ) 1.5 -
Define machining parameters
In Strategy tab page: Enter 3 mm as Approach Clearance value to take into account the stock 1.6 -
Define the tool
In tool tab page: • Select external tool database icon • Select Personal_tools_catalog as tools catalog (check whether Personal_tools_catalog file is copied in intel_a…) • Key 3.5 as nominal diameter for the query • Select the candidate tool (tool number 2401) In tool change assembly panel: • Key a name for the assembly (ex: DrillAssembly) • Set the Power value to Fixed (the part is turning not the tool)
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1.7 -
Replay the tool path Simulate the tool path using the video capability
1.8 -
Simulate the tool path using the Video capability The Stock accuracy can be better by modifying the Stock Accuracy default value on the Part Operation in the Simulation tab page (key 0.02)
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Lathe Machining
Detailed Steps
Step 2B: Define a Rough Turning Operation Use result of previous step or Open Rough_Turning_Operation_Start.CATProcess
Click on Rough Turning Operation icon 1.9 -
Define the geometry to machine
• Select the Part element in the Geometry panel (1) • Select a white point of the blue profile on the Part in order to select the full profile (2) It is not necessary to select the stock as it has already been selected on the Part Operation Key 0.5mm as Part offset
1.10 -
Define the Tool Assembly
Select the Tool Assembly tab page in Insert tab: • Select the default diamond insert (1) In Insert-Holder tab page: • Click on more button (2)
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Lathe Machining
1.11 -
Detailed Steps
Define the strategy to machine
In strategy tab page: • Key 1.5 as new Max depth of cut • Add a part contouring path at the last path only In Option tab page: • Key 3mm as new Lift-off distance • Tag Min Machining Radius option and key 1mm
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Lathe Machining
1.12 • •
Detailed Steps
Define the macro Activate Approach macro (1) Select a predefined macro: Axial-Radial (2)
Define the start point: • Click on start point in the panel (3) • Select the red point on the part (4)
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Lathe Machining
1.13 -
Replay the tool path
1.14 -
Simulate the tool path using the video capability
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Detailed Steps
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Lathe Machining
Detailed Steps
Step 3: Define a Groove Turning Operation Use result of previous step or Open Groove_Turning_Operation_Start.CATProcess
Click on Groove Turning Operation icon 1.15 • • •
1.16 -
Define the geometry to machine Select the Part element in the panel (1) Select the edge on the part (2) Key 0.0 mm as Part offset (3)
Define the Strategy
In strategy tab page: • Key 1.5 mm as Max Depth of Cut • Select Center as First plunge Position • Activate Part contouring • Activate Change output point option
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Lathe Machining
Detailed Steps
In Option tab page: • Key 1.5mm as Lift-off distance • Key 45deg as Lift-off angle • Key 0 deg as Gouging Safety angle
1.17 -
Define the Tool Assembly
In Insert tab page: • Select a Groove Insert • Key R1=R2=0.2 mm
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Lathe Machining
Detailed Steps
In Insert-Holder tab page: • Click on “More>>” • Key 2.5mm as Insert Width (la) • Select Compensation tab page • Select P9R • Key a value=10 for the corrector Number using MB3 on the P9R field
1.18 -
Define the macro
Create the same Axial-radial approach macro as in Rough Turning operation
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Lathe Machining 1.19 -
Replay the tool path
1.20 -
Simulate the tool path thanks the video capability
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Detailed Steps
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Lathe Machining
Detailed Steps
Step 4: Define a Recess Turning Operation Use Result of previous operation or Open Recess_Turning_Operation_Start.CATProcess Put in Show mode the following sketch: Crankshaft/PartBody/Remove.2/Sketch.12 Click on Recess Turning Operation icon 1.21 • •
1.22 -
Define the geometry to machine Select the Part element in the panel Select the 3 edges on the Part belonging to the Sketch.12 (1)
Define the strategy
In strategy tab page: Set the following parameters
1.23 -
Define the Tool Assembly
In Tool Assembly tab page: • Click on the “…” button • Select the same tool assembly as for the Rough Turning operation
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Lathe Machining
1.24 -
Detailed Steps
Define the macro
Create the same Axial-radial approach macro as in Rough Turning operation 1.25 -
Replay the tool path
Simulate the tool path using the video capability
NB: You have to create another Recess Turning operation to machine the remaining material of the previous Recess Turning operation
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Lathe Machining
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Detailed Steps
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Lathe Machining
Detailed Steps
Step 5: Define a Profile Finish Turning Operation Use Result of previous operation or Open Profile_Finish_Turning_Operation_Start.CATProcess Click on Profile Finish Turning Operation icon 1.26 -
Define the geometry to machine
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Select the Part element in the panel Select the two first elements of the dark blue profile and click on “Navigate on Belt of Edges”(as shown)
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Click again on this icon to select also the following edges because by default the navigation take only 10 edges OR click on the Option icon of the Edge Selection tool bar to increase the Max Step Forward
• Select End limit mode plane on the tab Select the limit surface (1) MB3 on None and select: In (2)
1.27 -
Define the strategy
In Machining tab page: • Key -45 as Lift-off angle • Key 0 as Lead-in angle • Key 0 as Leading Safety angle COPYRIGHT DASSAULT SYSTEMES
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Lathe Machining
1.28 • • • •
Detailed Steps
Define local strategy MB3 on the part element Select “Add local information” Deselect Global feedrate and key 0.4 as local value Key 0.1mm as local offset
In the same way put the same thickness on the next element of the profile MB3 on one of a profile element and select “Properties”. The selected elements are highlighted
1.29 -
Define the Tool Assembly
Select the Turning Tooling Assembly.1 in the list 1.30 -
Define the macro
Create the same Axial-Radial approach macro as in previous operation
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Lathe Machining 1.31 -
Replay the tool path
1.32 -
Simulate the tool path using the video capability
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Detailed Steps
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Lathe Machining
Detailed Steps
Step 6: Define a Thread Turning Operation Use Result of previous operation or Open Thread_Turning_Operation_Start.CATProcess Click on Thread Turning Operation icon 1.33 • • •
1.34 -
Define the geometry to machine Select the Part element in the panel Double-click on the edge to select it (shown in Red) Key 15 mm as Length to thread
Define the strategy
In thread tab page: • Key 0.5 as Pitch • Select Trapezoidal Profile In option tab page: • Key 0.5 mm as Clearance on crest diameter. • Key 90 degrees as Lift-off angle • Do not select Change output point option • Do not select Output CYCLE syntax option
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Lathe Machining
1.35 -
Detailed Steps
Define the macro
Create the same Axial-Radial approach macro as in previous turning operation 1.36 -
Replay the tool path
1.37 -
Simulate the tool path using the video capability
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Lathe Machining
Detailed Steps
Step 7: Define a Sequential Turning Operation Use Result of previous operation or Open Sequential_Turning_Operation_Start.CATProcess Click on Sequential Turning Operation icon 1.38 -
Define the Tool Assembly
In the insert tab page: • Select a Groove Insert • Set the following values
In the Insert-Holder tab page: • Select Groove Internal Insert-Holder • Set the following values
In the assembly tab page: Key 90 deg as Setup angle
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Lathe Machining
1.39 -
Detailed Steps
Define the motions In the strategy tab page:
a) Create a Go to point motion: • • • • •
Click on “Standard Go or Go-Go” icon Select the first check element on the panel and select the first check element on the part Select the second check element on the panel and the second check element on the part Set the first and the second check mode to “To” using contextual menu Create the tool motion
b) Create a Go in direction motion: •
Select the created tool motion
• • • • •
Click on “Go InDirV” icon Select the driving element on the panel and select the Drive element on the part Select the First check element on the panel and select the Check element on the part Set the First check mode to “To” Create the tool motion
c) Create a Follow motion: • • • •
Click on “Follow” icon Select the First check element on the panel and select the Check element on the part Set the First Check mode to “Past” Create the tool motion
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Lathe Machining
Detailed Steps
d) Create a Go in direction motion: • • • • •
1.40 -
Click on “Go InDirV” icon Select the driving element on the panel and select the Drive element on the part Select the First check element on the panel and select the Check element on the part Set the First check mode to “Past” Create the tool motion
Define the macro
Create an approach macro in direct mode starting from the standard start point
Create an New CATProcess Select File / New in the top menu bar Select Process in the type of new document to create
1.2 -
Go to Lathe Machining Workbench
1.3 -
Create a Machining Process including a Ramp Rough Turning Operation
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Select the Machining Process View icon
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Click the Machining Process icon
• Select the Ramp Rough Turning operation icon • In Strategy / Rework tab page: Activate Rework Mode option
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In Feeds & Speeds tab page:
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Lathe Machining
Detailed Steps
Activate “Replace RAPID by Air Cutting Feedrate”
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1.4 • •
In Macro tab page: Create a linking macro with interrupt motion “On Time” = 500s Create Linking Axial-Radial Approach & Radial-Axial Retract
Define the Tooling query Double-click on Tooling query in machining process view. In the Holder query tab page: Select External Insert-Holder Select the catalog to look in: LatheInsertsAndHoldersSample.catalog Define the 2 following constraints: Insert Length 1.4*Ramp Rough Turning. Max depth of cut
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Lathe Machining
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1.5 -
Detailed Steps
In the Insert query tab page: Select the catalog to look in: LatheInsetrsAndHoldersSample.catalog Define the 2 following constraints: Nose Radius >1.5*Ramp Rough Turning.Max depth of cut Nose Radius
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