Problem

Removing sprues and runners is a routine operation in cast and moulded parts. Eliminating the witnesses left behind by gates and risers is a challenging step that is complicated further by die wear over time. Conventional automation does not adapt to these changes and can result in non-conforming parts and worn or broken machine tools.

Solution

Rivelin's mechanical tools are used to remove gates, runners and sprues. Our metalworking robots adapt to the variability using a 3D vision system and dynamic planning capability. Additionally we use grinding-specific force control to react to machining forces and stabilise cutting tools, resulting in extended tool life.

Problem

Die casting often leaves witness lines on components as a necessary side effect of mould design. As moulds wear, the position and extent of flashing and parting lines change. Conventional automation does not adapt to these changes, causing inconsistencies between early and late production and sometimes resulting in non-conforming parts. Unexpected material can also cause excessive tool wear, further adding to the costs of rigid automation methods

Solution

Rivelin's metalworking tools are used to blend parting lines while adapting to the variable geometry and the presence of flashing using a 3D vision system and dynamic planning capability. Our grinding-specific force control system reacts to non-linear machining forces ensuring tool longevity and surface finish consistency. A high-speed version of our robot controller achieves the demanding takt times required by volume production.