Rolling-forging machine mould of rolling-forging train hook-tail frame body

The utility model provides a roll-forging machine die for roll forging train coupler yoke frame, comprising an upper die and a lower die. The utility model is characterized in that: the insertion stops inserting into the lower die impression are respectively arranged on both the left and the right s...

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Bibliographic Details
Main Author DECHENG FU
Format Patent
LanguageEnglish
Published 03.10.2007
Subjects
FORGE FURNACES
FORGING
HAMMERING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PRESSING METAL
PUNCHING METAL
RIVETING
TRANSPORTING
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Summary:The utility model provides a roll-forging machine die for roll forging train coupler yoke frame, comprising an upper die and a lower die. The utility model is characterized in that: the insertion stops inserting into the lower die impression are respectively arranged on both the left and the right side of the upper die impression form cavity and stop surfaces corresponding to the insertion stops are respectively arranged on both sides of the lower die impression form cavity. The upper die form cavity of the new roll-forging machine die structure is designed as an insertion oblique and inserts into the lower die form cavity forming a bevel staggered relative closed-end interface, thus avoids the possibility of metal outside flowing from the die form cavity. At the same time, using the metal thermal expansion physical property, the gap between the bevels can be further reduced when the upper and lower die heated in roll forging process, thereby the flash can be eliminated.
Bibliography:Application Number: CN2006282623U