著者

野田 尚昭 佐野 義一 高瀬 康 下田 祐太朗 張 国偉

出版者

一般社団法人 日本塑性加工学会

雑誌

塑性と加工 (ISSN:00381586)

巻号頁・発行日

vol.58, no.672, pp.66-71, 2017 (Released:2017-01-24)

参考文献数

15

被引用文献数

4 8

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First, back-up rolls for rolling require toughness, particularly in the shaft portion, and high-hardness in the sleeve portion. The back-up rolls are classified into two types; one is a single-solid type, and the other is a shrink-fitted construction type consisting of a sleeve and an arbor. The shrink-fitted back up roll has several advantages, for example, different materials can be chosen and the arbor can be reused by replacing the damaged sleeve. Therefore, the shrinkfitted back-up rolls are economical. However, residual deflection becomes a major problem for the shrink-fitted back-up roll. Elucidating the mechanism of the occurrence of residual deflection and devising countermeasures are important issues. Unfortunately conducting a real experiment is difficult because of much time and huge cost. In this paper, we reproduce this phenomenon by elastic FEM analysis, establish a simulation method, and elucidate the mechanism behind underlying residual deflection.