PUNCHING PUNCH, FORGING DEVICE INCLUDING THE SAME, AND FORGING METHOD USING THE SAME

To provide a punching punch capable of performing formation of a hole and trimming in a single step with a single punch; and to provide a forging device including the same, and a forging method using the same.SOLUTION: A punching punch 20 includes, on the tip, a taper part 201 reduced toward the fro...

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Bibliographic Details
Main Author SHIMADA TAKEYUKI
Format Patent
LanguageEnglish
Japanese
Published 10.09.2020
Subjects
FORGE FURNACES
FORGING
HAMMERING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PRESSING METAL
PUNCHING METAL
RIVETING
TRANSPORTING
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Summary:To provide a punching punch capable of performing formation of a hole and trimming in a single step with a single punch; and to provide a forging device including the same, and a forging method using the same.SOLUTION: A punching punch 20 includes, on the tip, a taper part 201 reduced toward the front, and performs forward extrusion for forming a hole 40 into a workpiece 4, while extruding the workpiece 4 forward, and trimming for punching a bottom part 41 of the hole 40.SELECTED DRAWING: Figure 1 【課題】単一の工程かつ単一のポンチで穴部の成形とトリミングとを行うことができる打抜きポンチ、これを備える鍛造装置、これを用いる鍛造方法を提供することを課題とする。【解決手段】打抜きポンチ２０は、前方に向かって縮径するテーパ部２０１を先端に備え、ワーク４を前方に押し出しながらワーク４の穴部４０を成形する前方押出し加工と、穴部４０の底部４１を打ち抜くトリミングと、を行うことを特徴とする。【選択図】図１
Bibliography:Application Number: JP20190041813