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CATIA线框曲面造型——手机 Mobile Phone

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2023年12月3日发(作者:友凝冬)

Generative Shape Design Detailed Steps

Mobile Phone

Step 1: Creating the Wireframe Geometry

Load the part called CATGSD_F_Phone_Step1_tfrom the ''Companion'' and save the part in

the Students directory.

1. You are going to extract the elements that will be necessary to complete the wireframe geometry:

 Double-click on the Extract icon

 Select the elements to be extracted (two pink edges and the yellow face) :

 Click Cancel to close the Extract dialog box.

2. You are going to use these extracted elements to create the wireframe geometry:

 Click on the Parallel Curve icon .

 Select the shortest pink extracted curve as element to offset, and the yellow face as support:

 Click OK to confirm.

 Click on the point creation icon .

 Select the “on curve” type and the previous parallel curve as support. Create this point:

COPYRIGHT DASSAULT SYSTEMES 2002 1Generative Shape Design Detailed Steps

 Click on the Parallel Curve icon .

 Select the second pink extracted curve as element to offset, and the yellow face as support:

 Click on the Parallel Curve icon .

 Select the first pink extracted curve as element to offset and the yellow face as support:

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Generative Shape Design Detailed Steps

 Click on the Connect Curve icon .

 Create this connect curve:

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Generative Shape Design Detailed Steps

 Click on the project icon and project the previous connect curve to the yellow extracted face:

 Click on the corner icon and create a corner between the these two curves (the shortest

parallel curve and the projected curve):

Click on the point icon and create a point on the YZ plane using these parameters:

 Click on the circle icon and create a circle using the previous point as center, YZ plane as

support and the following parameters:

COPYRIGHT DASSAULT SYSTEMES 2002 4 Generative Shape Design

COPYRIGHT DASSAULT SYSTEMES 2002

Detailed Steps

5 Generative Shape Design Detailed Steps

Step 2: Creating the Surfaces

Load the part called CATGSD_F_Phone_Step2_t from the ''Companion'' and save the part in

the Students directory.

Insert a new open body:

Rename it “Surfaces”:

- Click with the third mouse button on the new created open body and select “Properties”:

1. You are going to create the two points that will be used to create the sweep sections:

 Double-click on the Point icon.

 Select the point type “on curve” and create these two points on the corner curve:

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Generative Shape Design Detailed Steps

 Click Cancel to close the Point dialog box.

2. You are going to create the adaptative sweep using the corner curve, these two points and the

extracted face:

 Click on the Adaptative sweep icon.

 Select the corner curve as guiding curve:

 Now you are going to create the section:

- Right click in the sketch field and select “Create sketch”:

- This dialog box appears:

- Select this point:

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7 Generative Shape Design

- The dialog box becomes:

- Click OK to confirm. You automatically access the sketch creation.

 Create this sketch:

 Exit the sketch by clicking on this icon.

 Select the points that will define the sections

1- Select this point to define the second section:

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8 Generative Shape Design Detailed Steps

2- Select this point to define the third section:

3- Select this vertex to define the last section:

 You are going to change the sections parameters:

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9 Generative Shape Design Detailed Steps

1- Click on the first section in the dialog box and access the parameters clicking on the

Parameters panel:

2- Key in these parameters:

3- Do the same to modify the other sections parameters:

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10 Generative Shape Design Detailed Steps

Click OK to confirm the adaptative sweep creation:

3. You are going to create a linear sweep using the circle as guiding curve:

Click on the sweep icon .

Choose the linear sweep type and the sub-type “with reference surface”

Choose the circle as guide curve and the YZ plane as reference surface:

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Generative Shape Design Detailed Steps

 Key in these parameters:

 Click OK to confirm the sweep creation:

4. You are going to create a fill surface using the upper boundary of the previously created surface: Click the fill surface icon .

 Select the upper boundary of the linear sweep:

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12 Generative Shape Design

 Click OK to confirm the fill surface creation:

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Detailed Steps

13 Generative Shape Design Detailed Steps

Step 3: Performing operations

Load the part called CATGSD_F_Phone_Step3_t from the ''Companion'' and save the part in

the Students directory.

Insert a new open body:

Rename it “operations”:

- Click with the third mouse button on the new created open body and select “Properties”:

1. You are going to create the symmetrical surface of the adaptative sweep and join the two parts

together:

 Click on the Symmetry icon .

 Select the adaptative sweep as element to symmetry and the ZX plane as reference element: Click OK to confirm the symmetry creation:

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14Generative Shape Design Detailed Steps

Click on the Join icon .

Select the adaptative sweep and its symmetrical part:

 Click OK to confirm the join operation:

2. You are going to join the linear sweep with the fill surface and split the resulting join with the datum

blue surface:

 Click on the Join icon .

a. Select the linear sweep and the fill surface and confirm the join creation clicking OK:

COPYRIGHT DASSAULT SYSTEMES 2002 15 Generative Shape Design Detailed Steps

Show the blue datum surface located in the “Base surface” open body:

Click on the split icon.

Select the previous join surface as element to split and the blue datum surface as cutting element:

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Click OK to confirm the split creation.

3. You are going to trim the first join surface with the datum:

Click on the Trim icon .

Select the blue datum surface and the first join surface:

Click on the “Other side” buttons in order to keep the correct part of the trimmed surfaces. Click

OK to confirm the operation. The result should be:

COPYRIGHT DASSAULT SYSTEMES 2002 17 Generative Shape Design

4. You are going to add fillets on the previously created surface:

 Click on the variable radius fillet icon .

 Select these edges to be filleted and key in the following radius values:

 Click OK to confirm the variable radius creation.

 Click on the edge fillet icon .

 Select these four edges to fillet them (radius=1mm):

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Generative Shape Design Detailed Steps

 Click OK to confirm the edge fillets creation.

 Click the edge fillet icon .

 Select these two edges to fillet them (radius=2mm):

 Click OK to confirm the fillet creation.

 Double-click on the edge fillet icon .

 Create these fillets:

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19Generative Shape Design Detailed Steps

Click cancel to close the edge fillet dialog box.

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Step 4: Analyzing and Modifying

Load the part called CATGSD_F_Phone_Step4_t from the ''Companion'' and save the part in

the Students directory.

Insert a new open body:

Rename it “Analysis”:

Click with the third mouse button on the new created open body and select “Properties”:

1. You are going to create a reflect line on the main surface :

 Click on the Reflect Line icon.

 Select the main surface as support and the Z axis as direction :

 Key in the angle : 90deg.

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Generative Shape Design Detailed Steps

CATIA asks you if you want to keep only one sub-element of the generated reflect line : click YES

And select the point (0,0,0 : origine) as reference element to create the near element :

Click OK to confirm the near element creation :

COPYRIGHT DASSAULT SYSTEMES 2002 22 Generative Shape Design Detailed Steps

2. You are going to use this near element to split the surface :

Click on the Split icon.

Select the surface as element to cut and the near element as cutting element :

Note : switch on the option “Keep both side”.

Rename the two created split surface “Top” and “Bottom” :

 Hide the top surface :

3. You are going to Perform a draft analysis on the bottom surface (you have first to get to the material

view mode):

Click on the Draft Analysis icon.

Select the bottom surface and set the analysis settings to this:

COPYRIGHT DASSAULT SYSTEMES 2002 23 Generative Shape Design Detailed Steps

 There is no red area on the surface: you can hide it and show the top surface:

4. You are going to perform a draft analysis on the top surface:

 Click on the draft analysis icon.

 Select the bottom surface and set the analysis settings to this:

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Generative Shape Design Detailed Steps

 Invert the analysis direction:

There is a red area in this analysis : that means that the

upper surface cannot be extracted. It needs to be modified.

5. You are going to modify the shape to correct this anomaly:

 Double click on the adaptative sweep in the “Surface” pen Body:

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 The adaptative sweep dialogue box is displayed. Click on “UserSection.1”:

 Modify this parameter’s value (angle):

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Detailed Steps

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Generative Shape Design Detailed Steps

 Click OK to confirm the adaptative sweep modification. The whole part is automatically updated.

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Step 5: Completing the part in Part Design

Load the part called CATGSD_F_Phone_Step5_t from the ''Companion'' and save the part in

the Students directory.

Access the Part Body:

Insert a new Body:

This new body is defined as work object.

1. You are going to create a solid from the top surface:

 Click on the Thick Surface icon .

 Select the top surface and key in these parameters:

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Click OK to confirm the first thick surface creation (located in the new created body).

Create in the PART BODY a thick surface from the bottom surface the same way (using the same

parameters):

2. You are going to Add the new created body and the part body:

 Access the Add operation through the “Insert” menu:

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 Select the new created body:

 Click OK to confirm the Boolean operation:

3. You are going to Sew the antenna surface to the main solid:

 In the “Operation” Open Body, show the split antenna:

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Generative Shape Design Detailed Steps

Click on the sew icon .

Select the split antenna and orientate the arrows this way (inside the antenna):

 Click OK to confirm the sew creation:

COPYRIGHT DASSAULT SYSTEMES 2002 31 Generative Shape Design

COPYRIGHT DASSAULT SYSTEMES 2002

Detailed Steps

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2023年12月3日发(作者:友凝冬)

Generative Shape Design Detailed Steps

Mobile Phone

Step 1: Creating the Wireframe Geometry

Load the part called CATGSD_F_Phone_Step1_tfrom the ''Companion'' and save the part in

the Students directory.

1. You are going to extract the elements that will be necessary to complete the wireframe geometry:

 Double-click on the Extract icon

 Select the elements to be extracted (two pink edges and the yellow face) :

 Click Cancel to close the Extract dialog box.

2. You are going to use these extracted elements to create the wireframe geometry:

 Click on the Parallel Curve icon .

 Select the shortest pink extracted curve as element to offset, and the yellow face as support:

 Click OK to confirm.

 Click on the point creation icon .

 Select the “on curve” type and the previous parallel curve as support. Create this point:

COPYRIGHT DASSAULT SYSTEMES 2002 1Generative Shape Design Detailed Steps

 Click on the Parallel Curve icon .

 Select the second pink extracted curve as element to offset, and the yellow face as support:

 Click on the Parallel Curve icon .

 Select the first pink extracted curve as element to offset and the yellow face as support:

COPYRIGHT DASSAULT SYSTEMES 2002 2

Generative Shape Design Detailed Steps

 Click on the Connect Curve icon .

 Create this connect curve:

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Generative Shape Design Detailed Steps

 Click on the project icon and project the previous connect curve to the yellow extracted face:

 Click on the corner icon and create a corner between the these two curves (the shortest

parallel curve and the projected curve):

Click on the point icon and create a point on the YZ plane using these parameters:

 Click on the circle icon and create a circle using the previous point as center, YZ plane as

support and the following parameters:

COPYRIGHT DASSAULT SYSTEMES 2002 4 Generative Shape Design

COPYRIGHT DASSAULT SYSTEMES 2002

Detailed Steps

5 Generative Shape Design Detailed Steps

Step 2: Creating the Surfaces

Load the part called CATGSD_F_Phone_Step2_t from the ''Companion'' and save the part in

the Students directory.

Insert a new open body:

Rename it “Surfaces”:

- Click with the third mouse button on the new created open body and select “Properties”:

1. You are going to create the two points that will be used to create the sweep sections:

 Double-click on the Point icon.

 Select the point type “on curve” and create these two points on the corner curve:

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Generative Shape Design Detailed Steps

 Click Cancel to close the Point dialog box.

2. You are going to create the adaptative sweep using the corner curve, these two points and the

extracted face:

 Click on the Adaptative sweep icon.

 Select the corner curve as guiding curve:

 Now you are going to create the section:

- Right click in the sketch field and select “Create sketch”:

- This dialog box appears:

- Select this point:

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7 Generative Shape Design

- The dialog box becomes:

- Click OK to confirm. You automatically access the sketch creation.

 Create this sketch:

 Exit the sketch by clicking on this icon.

 Select the points that will define the sections

1- Select this point to define the second section:

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Detailed Steps

8 Generative Shape Design Detailed Steps

2- Select this point to define the third section:

3- Select this vertex to define the last section:

 You are going to change the sections parameters:

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9 Generative Shape Design Detailed Steps

1- Click on the first section in the dialog box and access the parameters clicking on the

Parameters panel:

2- Key in these parameters:

3- Do the same to modify the other sections parameters:

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10 Generative Shape Design Detailed Steps

Click OK to confirm the adaptative sweep creation:

3. You are going to create a linear sweep using the circle as guiding curve:

Click on the sweep icon .

Choose the linear sweep type and the sub-type “with reference surface”

Choose the circle as guide curve and the YZ plane as reference surface:

11 COPYRIGHT DASSAULT SYSTEMES 2001

Generative Shape Design Detailed Steps

 Key in these parameters:

 Click OK to confirm the sweep creation:

4. You are going to create a fill surface using the upper boundary of the previously created surface: Click the fill surface icon .

 Select the upper boundary of the linear sweep:

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12 Generative Shape Design

 Click OK to confirm the fill surface creation:

COPYRIGHT DASSAULT SYSTEMES 2001

Detailed Steps

13 Generative Shape Design Detailed Steps

Step 3: Performing operations

Load the part called CATGSD_F_Phone_Step3_t from the ''Companion'' and save the part in

the Students directory.

Insert a new open body:

Rename it “operations”:

- Click with the third mouse button on the new created open body and select “Properties”:

1. You are going to create the symmetrical surface of the adaptative sweep and join the two parts

together:

 Click on the Symmetry icon .

 Select the adaptative sweep as element to symmetry and the ZX plane as reference element: Click OK to confirm the symmetry creation:

COPYRIGHT DASSAULT SYSTEMES 2002

14Generative Shape Design Detailed Steps

Click on the Join icon .

Select the adaptative sweep and its symmetrical part:

 Click OK to confirm the join operation:

2. You are going to join the linear sweep with the fill surface and split the resulting join with the datum

blue surface:

 Click on the Join icon .

a. Select the linear sweep and the fill surface and confirm the join creation clicking OK:

COPYRIGHT DASSAULT SYSTEMES 2002 15 Generative Shape Design Detailed Steps

Show the blue datum surface located in the “Base surface” open body:

Click on the split icon.

Select the previous join surface as element to split and the blue datum surface as cutting element:

COPYRIGHT DASSAULT SYSTEMES 2002 16 Generative Shape Design Detailed Steps

Click OK to confirm the split creation.

3. You are going to trim the first join surface with the datum:

Click on the Trim icon .

Select the blue datum surface and the first join surface:

Click on the “Other side” buttons in order to keep the correct part of the trimmed surfaces. Click

OK to confirm the operation. The result should be:

COPYRIGHT DASSAULT SYSTEMES 2002 17 Generative Shape Design

4. You are going to add fillets on the previously created surface:

 Click on the variable radius fillet icon .

 Select these edges to be filleted and key in the following radius values:

 Click OK to confirm the variable radius creation.

 Click on the edge fillet icon .

 Select these four edges to fillet them (radius=1mm):

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Detailed Steps

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Generative Shape Design Detailed Steps

 Click OK to confirm the edge fillets creation.

 Click the edge fillet icon .

 Select these two edges to fillet them (radius=2mm):

 Click OK to confirm the fillet creation.

 Double-click on the edge fillet icon .

 Create these fillets:

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19Generative Shape Design Detailed Steps

Click cancel to close the edge fillet dialog box.

COPYRIGHT DASSAULT SYSTEMES 2002 20 Generative Shape Design Detailed Steps

Step 4: Analyzing and Modifying

Load the part called CATGSD_F_Phone_Step4_t from the ''Companion'' and save the part in

the Students directory.

Insert a new open body:

Rename it “Analysis”:

Click with the third mouse button on the new created open body and select “Properties”:

1. You are going to create a reflect line on the main surface :

 Click on the Reflect Line icon.

 Select the main surface as support and the Z axis as direction :

 Key in the angle : 90deg.

COPYRIGHT DASSAULT SYSTEMES 2002 21

Generative Shape Design Detailed Steps

CATIA asks you if you want to keep only one sub-element of the generated reflect line : click YES

And select the point (0,0,0 : origine) as reference element to create the near element :

Click OK to confirm the near element creation :

COPYRIGHT DASSAULT SYSTEMES 2002 22 Generative Shape Design Detailed Steps

2. You are going to use this near element to split the surface :

Click on the Split icon.

Select the surface as element to cut and the near element as cutting element :

Note : switch on the option “Keep both side”.

Rename the two created split surface “Top” and “Bottom” :

 Hide the top surface :

3. You are going to Perform a draft analysis on the bottom surface (you have first to get to the material

view mode):

Click on the Draft Analysis icon.

Select the bottom surface and set the analysis settings to this:

COPYRIGHT DASSAULT SYSTEMES 2002 23 Generative Shape Design Detailed Steps

 There is no red area on the surface: you can hide it and show the top surface:

4. You are going to perform a draft analysis on the top surface:

 Click on the draft analysis icon.

 Select the bottom surface and set the analysis settings to this:

COPYRIGHT DASSAULT SYSTEMES 2002 24

Generative Shape Design Detailed Steps

 Invert the analysis direction:

There is a red area in this analysis : that means that the

upper surface cannot be extracted. It needs to be modified.

5. You are going to modify the shape to correct this anomaly:

 Double click on the adaptative sweep in the “Surface” pen Body:

COPYRIGHT DASSAULT SYSTEMES 2002 25 Generative Shape Design

 The adaptative sweep dialogue box is displayed. Click on “UserSection.1”:

 Modify this parameter’s value (angle):

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Detailed Steps

26

Generative Shape Design Detailed Steps

 Click OK to confirm the adaptative sweep modification. The whole part is automatically updated.

COPYRIGHT DASSAULT SYSTEMES 2002 27 Generative Shape Design Detailed Steps

Step 5: Completing the part in Part Design

Load the part called CATGSD_F_Phone_Step5_t from the ''Companion'' and save the part in

the Students directory.

Access the Part Body:

Insert a new Body:

This new body is defined as work object.

1. You are going to create a solid from the top surface:

 Click on the Thick Surface icon .

 Select the top surface and key in these parameters:

COPYRIGHT DASSAULT SYSTEMES 2002 28 Generative Shape Design Detailed Steps

Click OK to confirm the first thick surface creation (located in the new created body).

Create in the PART BODY a thick surface from the bottom surface the same way (using the same

parameters):

2. You are going to Add the new created body and the part body:

 Access the Add operation through the “Insert” menu:

COPYRIGHT DASSAULT SYSTEMES 2002 29 Generative Shape Design

 Select the new created body:

 Click OK to confirm the Boolean operation:

3. You are going to Sew the antenna surface to the main solid:

 In the “Operation” Open Body, show the split antenna:

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Detailed Steps

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Generative Shape Design Detailed Steps

Click on the sew icon .

Select the split antenna and orientate the arrows this way (inside the antenna):

 Click OK to confirm the sew creation:

COPYRIGHT DASSAULT SYSTEMES 2002 31 Generative Shape Design

COPYRIGHT DASSAULT SYSTEMES 2002

Detailed Steps

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