BUP6

In the manufacturing of free-form surface composites, the existing manufacturing chain produces unwanted curvature variations when interpolating the support points from the path planning, which are accompanied by variations in path speed and relative extrusion speed. This results in unnecessarily slow process times and inaccuracy in generative manufacturing.

The project aimed to eliminate curvature variations during interpolation by passing the surface definitions. An important issue was the transition between adjacent surface elements as well as the handling of truncated surface elements.

Approach

• Path planning on free-form surface composites by means of exact intersection calculation in the surface coordinate system
• Development of a new transfer format to transfer surface description and surface sequence to the control system
• Development of an interpolator that uses the surface description for interpolation
• Researching an interpolator that allows interpolation across area boundaries
• Embedding in a real-time environment and validation based on process time and surface quality