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...energy per unit length of cut. Since there is no force perpendicular to the water jet and very little frictional drag in the cut, accurate fixing and positioning of the workpiece is easy. Single or multiple cutting heads can be used, and positioning can be by hand, CNC or optical tracing. Materials: A wide variety of materials, but most suitable for non-metallic materials...

...energy requirements. RIM equipment costs approximately 30% less than comparable injection moulding equipment, and product energy requirements are low compared with other materials, although RRIM would increase these. Critical process variables are mould and monomer temperatures, injection and clamping pressures, material flow rate and density. Close control of these...

...energy beam of electrons directed at the joint to be welded. Heat transfer is very localised, not by surface conduction, but within the workpiece itself, so no filler is required. Results in a narrow weld zone and HAZ. Process carried out either under vacuum, or non-vacuum...[Images to demonstrate 'Electron beam welding' - see article ] The electron beam is generated in...