Replicas can be made in any shape or size and, with suitable application methods, the high resolution can be achieved over the whole of the replica surface. Replicas may be removed from surfaces with significant re-entrant detail, without damage, allowing the replication of fracture surfaces, threaded holes, corrosion-pitting, internal geometry, surface mechanical damage, etc. The technique facilitates the detailed inspection of surface features at remote locations inside equipment, where access is difficult. Despite their flexibility when stretched, Microset replicas retain their initial overall geometry and dimensions and are successfully employed both for high accuracy metrology applications, including surface finish and surface damage assessment, and for macroscopic measurements.
Microset replicas pick up loose debris from surfaces and the micro-analysis of such debris can sometimes provide invaluable information, for instance in corrosion related investigations. The benefits of being able to view remote defects microscopically and, where necessary, generate accurate dimensional and analytical information, makes Microset replication a unique, versatile and powerful inspection tool.
Replica Inspection Techniques
A number of different inspection methods may be used to examine and assess Microset replicas depending on the application. Microset replication in combination with these inspection methods allows the qualitative and quantitative three-dimensional characterisation of surface features and defects, in situ.
Microset 101RF replica showing cracking in a stainless steel component (photographed at x100)
Microset 101RF replica of Laser-drilled holes in a gas turbine blade (photographed at x10)
Scanning Electron Microscopy
Microset 101FF replica of corrosion pitting (photographed at x40)
Non-Contact Laser Metrology
Microset 101RF replica of a print roll surface for wear measurement
Microset 101RF replica of a polished surface for surface finish assessment