The Dynamic Blanking, Forging, Indenting and Upsetting of Hot Metals
General accounts of the processes described in the title are given, but special attention is paid to the force and energy requirements for effecting them. The consequences of the processes being impulsive and therefore fast as against otherwise identical, squeezing or static processes, are brought out. The role played by working temperature is demonstrated, and especially the importance attaching to the temperature which is about one half the melting temperature.
Thermal discontinuities in the processing of solids are described and other features encountered when investigating the specific processes are discussed.
KeywordsImpact Velocity Dynamic Compression Plain Carbon Steel Indentation Pressure Homologous Temperature
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