Motorbike parting

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CimatronE 8.5 Tutorial

CimatronE 8.5 Motorbike Parting i

Table of Contents

Motorbike Parting Introduction ....................................................................................... 1 Analyze ............................................................................................................................ 2 Parting Faces.................................................................................................................... 9

Internal ......................................................................................................................... 9 External ...................................................................................................................... 13

ii Motorbike Parting CimatronE 8.5

CimatronE 8.5 Motorbike Parting 1

Motorbike Parting Introduction

In this exercise, the parting surfaces of the motorbike part will be created and the core, cavity and sliders will be exported.

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Analyze

Parting Setup Invoke the Parting Setup wizard, select the Master Motorcycle.elt part document (located in the \\Tutorial

Work Files\Data To Steel directory).

Set the following options:

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Click the Preferences Editor icon and view the Part/Color/Quick_Split preferences.

The color of Quick Split sets can now be defined.

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Within the Preferences Editor, select Modeling/General/Quick Split Quality and verify that 'Recommended' is selected.

Click OK in the Preferences Editor and in the Parting Setup Wizard.

Split Select the Parting / QuickSplit function from the Guide .

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Change the arrows direction to Along Y, add vertical faces to bottom and click OK.

The following steps are redundant when using the 'High Quality' option in the Quick Split Quality preferences. However, in this exercise the steps below are introduced to illustrate how to deal with a normal, which is pointing in the wrong direction.

Click the Object Direction icon.

Notice the black faces on EACH side.

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Toggle the Auto option to Manual.

The Manual option lets you manually pick each object and flip its normal. It is useful in cases where the body includes several lumps as it allows each lump to be flipped individually.

Pick the five black faces to invert their normals i.e. they appear white, and click OK.

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Check for Draft Angles.

Notice that the same faces are shown in red as undercuts.

These faces were assigned to the RED set since their face normals were inverted.

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Enter the QuickSplit function. Attach the marked faces to the BLUE set.

Pick the required faces and Middle Mouse Click on a blue face.

From the QuickSplit function, press the Draft Angle analysis icon. No undercuts are detected.

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Parting Faces

Internal

Parting Faces - Internal

Cylindrical The two sliders will now be split.

From the Parting function, pick the New Direction option and toggle the One Direction option to Both Directions.

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Pick the arrow base and select the option Cylindrical/Conic Center.

Pick one of the sliders cylindrical faces.

Click OK in the New Directions Feature Guide.

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Attach the rest of the sliders faces to achieve the result shown below:

Parting Curve Create the internal parting curves.

Select Parting Curve/Internal Part. Curve.

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Use the default Adjoin Tolerance value of 0.1 and click OK in the Feature Guide.

Select Parting Surf/Internal.

Click OK in the Feature Guide.

All the internal islands are now closed.

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External

Parting Faces - External

Sweep The external parting faces will now be created.

Select Tools/Composite.

Hide the following sets and Parting Surfaces:

When creating a composite curve on a split part, selection of the curves is made easier by displaying the relevant faces only.

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Create the following composite curve:

Select the Sweep Face icon from the Parting Guide, under Parting Surf.

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Pick the composite curve created, and change the direction to Along X (pointing outwards).

Show the Split-03 direction.

Create the composite curve shown here and sweep a face in the -Z direction.

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Open the sketcher. As the sketch plane pick the face indicated below:

Rotate to plane and draw a line slanted at 1.5 degrees from the vertical direction. Use reference points indicated by the arrows.

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Sweep this line in the X direction to Both Sides.

Extend Select Solid/Merge.

Pick the two faces highlighted below:

Notice the arrow directions.

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Click OK.

The slider will now be closed.

Select the Blend Face icon and create the Blend face below:

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Pick the boundary shown here.

Extend the face as shown below:

The following step is to stitch the faces, in order to create a round. This means that the open edges will be "lost". Therefore, before the stitch operation, the face shown here will be extended, using its smooth open edge.

Select the Extend Face icon.

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Pick the edge highlighted and create a Tangent Continuous extension.

Select Faces/Stitch and stitch the faces into a single object.

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Create the following round:

Inner area Close the inner area below, by a Bounded Face.

Click here to see the curve selected.

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Create the Blend Face by picking the two edges as shown:

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Close the area by an additional Blend Face (with boundaries).

Create a composite curve and extend the edges shown below, using the Tangent Continuous option.

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Side area Extend the edge shown here using the Natural Continuous option.

Create the composite curve.

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Click the Drive Face icon and create a Drive Face.

Below the drive face, create the following extend face:

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Create the composite curve shown below:

Create a Natural - Multi Continuous Extension, using the Manual Directions option.

The Auto Directions parameter displays all arrows on the vertices and their corresponding default directions are calculated. The direction of the arrows can be set by right-clicking on the arrow. .One or more arrows can be removed so that their default direction at this point will not be calculated.

The Manual Directions parameter displays only two arrows at the end vertices of each face. Side directions of extensions on each vertex can be added.

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Create the Composite Curve shown here.

Select Faces/Modify/Boundary.

Pick the face as shown below, using the Keep Original option.

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Pick the edge indicated and create a Natural Continuous extend face using the Same Face option.

Trim the extended face using the composite curve.

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Flip the trimming side so that the result will be the parting face shown here.

Mirror Create Main Planes: YZ.

As the part is symmetric we can now mirror the parting faces to the other side.

Select Edit/Copy Geometry/Mirror and pick the Parting faces.

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Pick the YZ main plane as the symmetry plane.

Click OK in the Feature Guide.

Bounded Select Faces/Bounded, click the Composite Curve icon and pick the curves as shown.

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Press OK to confirm the composite curve and then again to create the bounded face.

Create the plane shown below:

First create the ZX plane, then select Datum/Plane/Parallel and pick the ZX plane.

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Trim the Parting Faces, using the plane created.

Flip the Trimming Side and click OK in the Feature Guide.

Final Open the sketcher on the XY plane, and draw the following sketch:

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Sweep this curve by a delta of 500.

The newly created face will now be cut with the intersecting faces. The Faces/Trim function is normally used in this procedure, however here the Merge function will be used as it enables the procedures completion in a single operation.

Stitch the following faces:

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Merge the two objects.

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Notice the arrow directions.

Create a sketch on the parallel plane created in the last step.

Use the parting faces end points as references.

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Create composite curves (using a tolerance of 0.4 for the first face) and use them to create the three bounded faces below:

Attach Show all the sets. The parting faces will now be attached to their relevant sets.

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From the Parting Guide, click the Attach Attribute icon

Pick the faces to assign and exit.

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Pick the two sets (Split-01 and Slpit-02) to which the faces belong.

Click Apply in the Feature Guide.

Pick the faces to assign and the sets which they belong to.

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Repeat the above step on the other side of the part for Split-01and Split-04.

Pick the faces to assign and the sets they belong to.

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Repeat the above step on the other side of the part for Split-02and Split-04.

Below is the list of sets created and their corresponding colors: