In this third and final installment, we will examine technological developments in vacuum heat treating and look to the future. Many new technologies owe their success to vacuum processing. Examples include: 1) Rotational compression brazing of aerospace rocket and military jet engines 2) Titanium processing including beta annealing, slow cooling and age hardening (BASCA 160) of titanium alloys 3) Vacuum carburizing/carbonitriding and high-pressure gas quenching of automotive powertrain components 4) High-temperature sintering followed immediately by vacuum hardening for automotive transmission components
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