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Tag Archives: Creo ebook

Creating a Skirt Surface

You can use a skirt surface to automatically create the mold model parting surface. • The skirt surface is created using specified datum curves. – The silhouette curve parting line is usually selected. • Inner holes in the reference model are filled using silhouette curve loops. • Outer curve loops are extended to the workpiece boundaries. …

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Understanding Parting Lines and Parting Surfaces

You can create parting lines and parting surfaces to define where mold volumes are to be split. • Parting surface creation methods: – Automatic — Skirt Surface tool – Manual — Use surfacing techniques • Parting line creation methods: – Automatic — Silhouette Curve tool – Manual — Use datum …

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Creating a Reference Part Cutout

A reference part cutout enables you to remove any overlapping reference model geometry from the mold volume. • The reference model volume is subtracted from the mold volume. • The resulting mold volume geometry matches the mating reference model geometry. • It helps you to verify that you have created the desired mold volume. • This is …

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Understanding Mold Volumes

A mold volume consists of surfaces that locate a closed volume of space within the workpiece. • Mold volumes: – Have no solid material. – Are ultimately used to create solid mold components. – Are assembly-level features. • As a best practice you should rename mold volumes. • You can apply finishing features such …

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Creating a Custom Automatic Workpiece

A custom automatic workpiece enables you to add flanges to the top and bottom of the workpiece and rounds or chamfers to the vertical edges. • The process is the same as creating a rectangular or round workpiece. • The default custom shape for a custom workpiece is BLOCK_XY_FLANGES. • Many other shapes are available. Figure …

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Applying Shrinkage by Scale

You can shrink part geometry by scaling it in relation to coordinate system directions. • You can apply shrinkage by scale to all three directions uniformly. – Isotropic • You can apply different shrinkage ratios to each of the three coordinate system directions. – X-Direction – Y-Direction – Z-Direction Figure …

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Analyzing Variable Mold Cavity Layout

You can create unique cavity layouts using the Variable layout option. • Convert an existing layout to Variable. • The following orientation options are available: – Reference Rotation – X-Translation – Y-Translation – Layout Rotation • Additional options: – Highlight – Add/Remove pattern  instance Analyzing Variable Mold Cavity Layout Figure 1 – Variable …

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Creating the Reference Model

The reference model usually represents the part that is to be molded. • Create Reference Model: – Creates a new model on-the-fly. – Uses conventional component creation methods. – Uses conventional assembly placement constraints. • You cannot specify the Reference Model Type. Figure 2 – Assembling the Reference Model using …

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Creating New Mold Models

Your company can create customized templates for creating new mold models. • A mold model consists of: – A reference model – Workpieces – Mold components – Molding • File extension is .asm • Use customized mold manufacturing templates. • Mold templates include: – Datums – Pull Direction – Layers – Units …

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Analyzing Design Models Theory

Analysis tools enable you to ensure that the design model is acceptable for mold creation. • Analysis tools include: – Draft check – Thickness check • Analysis tools can be used on components other than the design model. • Analysis tools can be used at times other than before the mold is created. Analyzing Design …

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