Flash welding comprises three primary steps: flash, upset, and hold. In flash rail welding, the ends of two rails are aligned close together end to end and gripped by special hydraulic clamps. The ...

UCLA chemists report the discovery of a remarkable new nanoscale phenomenon: An ordinary camera flash causes the instantaneous welding together of nanofibers made of polyaniline, a unique ...

Flash welding should be a general phenomenon for materials with a high absorbance (deeply coloured), high photothermal efficiency (low emission), low thermal conductivity and small size.

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A flash welding technique that exploits the peculiar photothermal response of polyaniline nanofibres opens new avenues for processing and patterning polymer-based materials and devices.

UCLA chemists report the discovery of a remarkable new nanoscale phenomenon: An ordinary camera flash causes the instantaneous welding together of nanofibers made of polyaniline, a unique ...