FORGING APPARATUS

PROBLEM TO BE SOLVED: To reduce the occurrence of underfill in a forging.SOLUTION: A forging apparatus is provided that comprises a stationery lower die 5 as a first metal mold and a movable upper die 6 as a second metal mold, and pressurizes and forms an intermediate molding MM by a lower die moldi...

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Bibliographic Details
Main Authors GWON NYEONG JO, OSHIMA SHUNSUKE
Format Patent
LanguageEnglish
Japanese
Published 19.07.2018
Subjects
FORGE FURNACES
FORGING
HAMMERING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PRESSING METAL
PUNCHING METAL
RIVETING
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To reduce the occurrence of underfill in a forging.SOLUTION: A forging apparatus is provided that comprises a stationery lower die 5 as a first metal mold and a movable upper die 6 as a second metal mold, and pressurizes and forms an intermediate molding MM by a lower die molding surface 5a and an upper die molding surface 6a of the stationery lower die 5 and the movable upper die 6 which face each other. In a hot forging machine 1 to which the forging apparatus is applied, the stationery lower die 5 of the stationery lower die 5 and the movable upper die 6 is provided with an opening/closing barrier 7 which is energized toward the movable upper die 6. The opening/closing barrier 7 has a notch 73 at a molding surface side end 71a which faces the movable upper die 6.SELECTED DRAWING: Figure 3 【課題】鍛造品における欠肉発生を低減すること。【解決手段】第１金型である固定下型５と、第２金型である可動上型６と、を備える。中間成形品ＭＭを、固定下型５と可動上型６の対向する下型成形面５ａと上型成形面６ａにより加圧して成形する。この鍛造装置を適用した熱間鍛造機１において、固定下型５と可動上型６のうち固定下型５に、可動上型６に向けて付勢される開閉堰７が設けられる。開閉堰７は、可動上型６に対向する成形面側端部71aに切欠部７３を有する。【選択図】図３
Bibliography:Application Number: JP20170002616