GibbsCAM 5-Axis Porting optimises cutting tool motion for complex tube parts

Gibbs and Associates and Cimatron have developed a 5-Axis Porting option for GibbsCAM. This provides a specialised interface optimised for machining processes and cutting tool motion required to machine tubular openings that change shape and curvature from one end to the other.

The Porting option complements GibbsCAM 5-Axis by enabling easier and faster programming of port-like openings through a condensed interface that provides toolpath options and machining strategies for machining such open shapes and was originally designed to meet the motorsports industry's drive to improve engine by optimising flow through ports, manifolds and throttle bodies. The software can automatically detect the spine curve through the port and properly align the toolpath. Using available tool reach, the software can split upper and lower operations automatically by maximum tool reach, midpoint or a user selected per cent of reach, ensuring proper toolpath blending between upper and lower sections. Machining strategies include roughing, rest roughing, and spiral and plunge (along) finishing. To maintain tool rigidity, 5-Axis Porting maintains 3-axis machining (3 + 2 mode) as far into the port as possible until 5-axis simultaneous motion is required. Tool tilting is automatically calculated for optimal angles, without the need to split surfaces or create tool axis control splines, producing smooth, gouge free 5-axis motion. Users may choose to machine only the top of a port, only the bottom, or both sides, in a single operation. In addition to its ease and speed benefits, the GibbsCAM 5-Axis Porting option generates a cleaner, more efficient toolpath for faster machining and higher quality parts.