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1. 发明授权

US06658908B1 Punch for piercing and sealing hydroformed parts 失效
标题翻译：冲压冲孔和密封液压成型零件
公开(公告)号：US06658908B1
公开(公告)日：2003-12-09
申请号：US10223753
申请日：2002-08-20
申请人： Mircea M Ghiran , Terry Andrew Kent , Benjamin D Kaufman
发明人： Mircea M Ghiran , Terry Andrew Kent , Benjamin D Kaufman
IPC分类号： B21D2828
CPC分类号： B21D28/34 , B21D26/035 , B21D28/28 , Y10T83/0591
摘要： A punch for piercing and sealing hydroforming parts has a roll forming surface that produces an internal rolled edge portion in a formed part immediately following the punch piercing the part wherein the rolled edge portion acts to effect a tight high pressure seal between the part and the punch as the punch continues to form a required hole in the part. The roll-forming surface extends either partially or completely about the punch in determining the extent of the rolled edge portion in the part that it produces and is located between an end portion that effects the piercing operation and a larger finishing portion that completes the formation of the required hole.
摘要翻译：用于刺穿和密封液压成形部件的冲头具有辊形成表面，该辊形成表面在紧邻冲头穿孔部件之后的形成部分中产生内部卷边部分，其中卷边部分起作用以在部件和冲头之间实现紧密的高压密封因为冲头在部件中继续形成所需的孔。轧辊形成表面部分地或完全地围绕冲头延伸，以确定在其产生的部分中的轧制边缘部分的程度，并且位于实现穿孔操作的端部和完成形成所需的孔。

2. 发明授权

US06584821B1 Self-aligning non-pinching hydroforming dies 失效
标题翻译：自对准非夹紧液压成型模具
公开(公告)号：US06584821B1
公开(公告)日：2003-07-01
申请号：US10123662
申请日：2002-04-16
申请人： Mircea M Ghiran , Spyros Pete Mellas , Paul C Oberski
发明人： Mircea M Ghiran , Spyros Pete Mellas , Paul C Oberski
IPC分类号： B21D2602
CPC分类号： B21D37/12 , B21D15/03 , B21D26/039 , B21D26/047 , Y10T29/49805
摘要： A pair of self-aligning non-pinching hydroforming dies have fingers and slots which are operable during closure of the dies on a tubular part to effect precise alignment of the dies as they are pressed together to form a hydroforming cavity about the part so that the part is not pinched between mating surfaces of the dies during their closure on the part. The fingers are further capable of mechanically straightening and/or bending the part, if need be, to prevent pinching of the part during die closure. The fingers are also capable of mechanically forming a round tubular part to a non-round cross-section region of the die cavity as the dies close to help form the part as well as prevent pinching of this section. With all such mechanical forming operations by the action of the fingers on the part performed prior to the hydroforming of the part in the die cavity.
摘要翻译：一对自对准非夹持液压成形模具具有指状物和狭槽，其可在模具封闭管状部件期间操作，以在模具被压在一起时精确对准模具，以在该部件周围形成液压成形腔体，在模具闭合部件之间，模具的配合表面之间不会夹紧零件。如果需要，手指还能够机械矫正和/或弯曲部件，以防止在模具闭合期间部件的夹紧。手指还能够在模具的非圆形横截面区域机械地形成圆形管状部件，因为模具靠近以帮助形成该部件以及防止该部分的挤压。通过手指在模具腔中的部件的液压成形之前执行的部件的作用进行所有这样的机械成形操作。

3. 发明授权

US06401507B1 Hydroforming, in-die hydropiercing and slug-ejecting method and apparatus 有权
标题翻译：液压成形，模内水合和排料方法和装置
公开(公告)号：US06401507B1
公开(公告)日：2002-06-11
申请号：US09997369
申请日：2001-11-30
申请人： Glenn Mark Krcek , Romuald Gmurowski , Bruce Steven Shimanovski , Mircea M Ghiran
发明人： Glenn Mark Krcek , Romuald Gmurowski , Bruce Steven Shimanovski , Mircea M Ghiran
IPC分类号： B21D2828
CPC分类号： B21D37/02 , B21D15/10 , B21D28/28 , B21D45/003 , Y10T29/49805 , Y10T83/0591
摘要： A die button flush mounted in the cavity surface of a lower one of two hydroforming dies has a backup plunger received therein that forms a part of this surface when the plunger is in a hydroforming position. A slug ejector received in the lower die also forms a part of this surface and with a tubular part enclosed in the cavity formed by the dies, hydroforming fluid under pressure is supplied to the interior of the part and also to separately act on the plunger. The fluid pressure moves and holds the plunger in its hydroforming position while forming the part to the die cavity surface. The fluid pressure on the plunger is then exhausted allowing the fluid pressure in the part to stretch a portion of the part into the die button while also forcing the plunger to a position that limits this stretching to prevent piercing. The fluid pressure in the part is then reduced to a pressure just sufficient to pierce the stretched portion and the plunger is then allowed to further retract to a position allowing the reduced pressure to pierce a slug onto the plunger. The part is then removed from the die cavity and the plunger is returned to its initial position with the slug thereon where the slug is then ejected from the lower die through an opening in the lower die cavity surface.
摘要翻译：安装在两个液压成形模具中较低的一个液压成形模具的腔表面中的模具冲头具有容纳在其中的支撑柱塞，当柱塞处于液压成形位置时，其形成该表面的一部分。容纳在下模中的塞子推出器还形成该表面的一部分，并且封装在由模具形成的空腔中的管状部件，在压力下的液压成形流体被供应到部件的内部并且还单独地作用在柱塞上。流体压力移动并将柱塞保持在其液压成形位置，同时将部件形成在模腔表面。然后柱塞上的流体压力被排出，允许部件中的流体压力将部件的一部分拉伸到模具按钮中，同时还迫使柱塞限制该拉伸以防止刺穿。然后将部件中的流体压力减小到足以刺穿拉伸部分的压力，然后允许柱塞进一步缩回到允许减压将块塞刺入柱塞的位置。然后将该部件从模腔中取出，并且柱塞在其上的块塞返回到其初始位置，然后块状物通过下模腔表面中的开口从下模具排出。

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