Geometric Data Exchange Solid Works Creo CATIA Geometric

Geometric Data Exchange Solid Works Creo CATIA Geometric Model Master. CAM Dell. CAM Esprit. CAM

Geometric Data Exchange The Need • Heterogeneous expertise • Use of separate software for design and manufacturing • Migration from one system to another • Data exchange with collaborators / customers / suppliers

Geometric Data Exchange Two Options • One native format to another directly • One native format to another via a standard format

Geometric Data Exchange Geometric Format (Software I) Geometric Format (Software II) Intermediate Geometric Format (Software I) Geometric Format (Software II)

Geometric Data Formats IGES • Stands for Initial Graphics Exchange Specification. • Topology and geometry of given object is stored separately. • Both binary and ASCII formats are permissible

Standards for Product Modeling What is STEP ? Stands for STandard for Exchange of Product data (ISO 10303). International effort to develop standards for computer interpretable representation and exchange of product data.

STEP • • • Function Specifications & Constraints Geometry Design History Material Assembly & Bill of Materials Tolerances & Surface Finish Process data Business Information

STEP-NC Why STEP NC (ISO 14649) ? • Elimination of G & M Codes (ISO 6983) • Machine Independent Code (single file) • customized tool paths • Process planning and production planning information along with NC tool paths • Interface with STEP (ISO 10303) • Feature based • Internet enabled (portable) • Provision of Feedback (Bidirectional Data Flow) • Provision for Process Optimization

STEP-NC

STEP-NC

STEP-NC …

STEP-NC

STEP-NC Pattern strategies : GUIDE CURVE + PATTERN Exemples of strategies built on pattern curves : Trochoïdal Plunge milling :