Abstract
The measurement technology of the hot-state size for heavy shell ring forging is researched. A measurement technology is proposed and designed in this paper. The outer diameter is measured by laser scanning technology. The relationship between temperature and size is derived. Using this relationship, the inner diameter is measured by combining the outer diameter and temperature. The temperature is measured by infrared temperature measurement technology based on three-level interference filter. The measuring method is feasible according to the experimental result. Thereby, the measurement for hot-state size of heavy shell ring forging is achieved, and the requirement of the large forgings' green manufacture is fulfilled.
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