MANUFACTURING METHOD AND MANUFACTURING APPARATUS OF PRESS PART HAVING HAT CROSS SECTION

PROBLEM TO BE SOLVED: To manufacture a hat cross section part comprising a high strength material having a comparatively complicated shape, by a movable pad pressure at a mold opening time after press molding, without deforming a press molding.SOLUTION: A joint link provided on a blank holder is bur...

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Bibliographische Detailangaben
Hauptverfasser:	ASO TOSHIMITSU, SUZUKI JUNICHIRO, OOKA KAZUNORI, YAMAMOTO SHINOBU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Zusammenfassung:	PROBLEM TO BE SOLVED: To manufacture a hat cross section part comprising a high strength material having a comparatively complicated shape, by a movable pad pressure at a mold opening time after press molding, without deforming a press molding.SOLUTION: A joint link provided on a blank holder is burdened with a load imparted to a top plate of a press part from a movable pad, until separating from the top plate of the press part molded by the movable pad from a molding lower dead center, by using an apparatus including a lower die having a punch die and the blank holder, and an upper die having the movable pad, a flexure blade, a catcher and an outer cam.SELECTED DRAWING: Figure 2 【課題】比較的複雑な形状を有する高強度材からなるハット断面部品を、プレス成形後の型開時に可動パッド圧によりプレス成形品を変形させることなく製造する。【解決手段】パンチダイおよびブランクホルダを備える下型と、可動パッド、曲げ刃、キャッチャーおよびアウターカムを備える上型とを備える装置を用い、成形下死点から、可動パッドが成形したプレス部品の天板から離れるまでの間、ブランクホルダに設けられたジョイントリンクが、可動パッドがプレス部品の天板に与える荷重を負担する。【選択図】図２