Blue Photon adhesive workholding system from NCMT

A photo-activated adhesive workholding system has been introduced to the UK and European markets by UK sole agent NCMT. Called Blue Photon, it was developed at the Pennsylvania State University to fixture difficult-to-hold parts for tight-tolerance machining and inspection.

The process involves applying an adhesive that is cured by ultraviolet light via fibre optic cables. The adhesive can subsequently be melted and the machined workpiece removed following immersion in hot water or by application of another heat source, which should optimally be 80°C.

Alternatively, the adhesive contact points can be sheared to free the workpiece by rotating with a spanner the gripper pins in the fixture plate.

The process can hold components having an average shear resistance of 136 kg, yet allow cutters all-round access for machining on five sides. Unlike magnetic clamping systems, it can be used to secure both ferrous and non-ferrous metallic parts, including composites.