Development of a Computerized Mathematical Model for the Hot/Cold Nosing of Shells

摘要

The state of the technology in shell nosing and the previous studies on the shell-nosing process are briefly reviewed. A number of computerized mathematical models were developed in order to optimize the process variables, and were integrated into one comprehensive computer program called NOSING. The various capabilities of the computerized models developed under this program include the following: (a) Designing of preform shape prior to hot nosing. This capability is also available on a programmable HP-67 hand calculator; (b) Prediction of temperature distribution due to induction heating and prior to hot nosing; (c) Prediction of metal flow during the nosing operation; and (d) Prediction of the load-stroke curve during nosing. The computer program NOSING is capable of simulating both cold and hot nosing of shells and capable of determining the optimum combination of process parameters. (Author)