Functional integration and resource utilization are a challenge in today’s product development. The selective utilization of surface properties for functional integration offers potentials which aren’t exhausted until now. Surface roughness is mostly considered in manufacturing and measurement but the product properties impacted by surface roughness are determined in the product development. So it is necessary to integrate and extend the information about surface roughness in the methods and models of the product development. Therefore an approach for the representation of surface properties in product development is evolved. Based on the classification of surface deviation and profile courses, a method for building a surface profile is explored and depicted in an object-oriented representation model. One example for the functional integration and the use of technology-induced properties are sheet metal parts with higher order bifurcation in integral style. A new massive forming technology called linear flow splitting enables the manufacturing of sheet metal parts with higher order bifurcation in integral style. Within this manufacturing process, the material properties change heavily. Considering these changes in the product development, the representation model is needed to ensure the functionality. The model is used for generation a typical surface resulting from a linear flow splitting process.

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