著者

岩田 靖 岩堀 弘昭 内藤 国雄 大庫 和孝

出版者

公益社団法人 日本鋳造工学会

雑誌

鋳造工学 (ISSN:13420429)

巻号頁・発行日

vol.75, no.12, pp.870-874, 2003-12-25 (Released:2015-01-07)

参考文献数

3

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A sand block was developed for direct machining with a numerical contorol machine. The sand block has a cutting resistance of 30N which is as small as 1/300 that of steel block. Especially, sand blocks made of fine spherical particles have better dischargeability and dimensional accuracy, thus providing excellent machinability. Direct machining of a sand block reduces molding time. For example, it takes merely four hours to complete the mold for the cylinder head cover of an automobile engine.