Abstract
Using both theoretical analysis and practical experiment, it is clearly indicated that the electric upsetting process should be divided into two stages: preform upsetting and finish upsetting. The main process parameters influencing the forming quality of engine valves, balancing and matching of these parameters, and the microcomputer system used to control them are described. By using the microcomputer system to control the whole process automatically, the rate of efficient production could be considerably increased.
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References
K.H. Golf, Electric Upsetting Speeds Forging Production,Precision Metal, No. 3, 1978, pp. 25–28.
J.J. Kusner and T. Edwards, Gathering Metal for Heading,Precision Metal, No. 2, 1972, pp. 30–31.
R.M. Tong, A Control Engineering Review of Fuzzy System,Automatics, 13, 1977, pp. 559–569.
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Wang, Y.G., Yin, X.M. Analysis of parameters and microcomputer control for the electric upsetting process for forging engine valves. J. Materials Shaping Technology 5, 125–131 (1987). https://doi.org/10.1007/BF02834811
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DOI: https://doi.org/10.1007/BF02834811