Creating Mold Cavity of Pipe Fittings

SOLIDWORKS is a very intuitive and easy to use software that helps users create mold cavities of complex shapes, then export them to software extensions like CAMWorks, to generate the necessary NC codes required to machine these complex shapes. For this particular tutorial, we will be going through how to create mold cavities of pipe fittings.

Begin by creating the pipe fitting geometry. Create a new part then define the sketch below on the front plane.
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Since we will be using the swept boss feature inside SOLIDWORKS to create the part, we need to define a path for the swept feature.

Create a sketch on the front plane then define it using the dimensions shown below.
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We are now good to create the swept boss feature. Click on swept boss in the features tab then define the contour and path.

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Next, create the head for the ends of the fittings using the extrude and convert entities command. You will also need to use the offset command.

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You can then do a chamfer to smoothen out the edges.

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To define the mold cavity we need to create both the cope and drag. Since the two are mirror images of one another we need to simply create only one and do a mirror operation.

Define the sketch below on the front plane.

 

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Run the extrude command only, this time, unselect the merge check box.

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Notice that there are two solid bodies under the solid bodies folder.

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You can use the copy bodies’ tool to create a replica of the fitting allowing you to create several of these fittings using one cavity.

To subtract the fittings, move to the solid bodies folder, select all the solid bodies, right click and define a subtract operation.

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You can then mirror the results to create the other half of the mold cavity.

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