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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

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。

3. 发明授权

US06212982B1 Process for manufacturing slot-shaped openings on hollow sections and apparatus for implementing same 失效
标题翻译：在中空部分上制造槽形开口的过程和用于实现其的装置
公开(公告)号：US06212982B1
公开(公告)日：2001-04-10
申请号：US08975169
申请日：1997-11-20
申请人： Helmut Augustin , Thomas Hülsberg
发明人： Helmut Augustin , Thomas Hülsberg
IPC分类号： B21D2828
CPC分类号： F28F9/02 , B21D28/28 , F28F2255/10 , Y10T83/0424 , Y10T83/0443 , Y10T83/0481 , Y10T83/0596 , Y10T83/384
摘要： A process and apparatus for manufacturing slot-shaped openings on hollow sections is disclosed in which the openings are produced by a piercing cutting operation by means of a blade-type cutting tool by the displacement of material in a cutout-free manner. During the slotting operation, the hollow sections are supported from the inside around the openings to be formed. In order to produce slot-shaped openings in a simple manner while maintaining the shape of the hollow section on arbitrarily constructed hollow sections in a reliable process free of positional tolerances, the hollow section is inserted in a recess of an internal high pressure forming tool. The hollow section is slotted by the interaction of the cutting action of a cutting tool integrated in the internal high pressure forming tool and an internal high pressure generated inside the hollow section.
摘要翻译：公开了一种用于在中空部分上制造槽形开口的方法和装置，其中通过利用刀片式切削工具的穿孔切割操作，通过以无切割的方式移动材料而产生开口。在开槽操作期间，中空部分从要形成的开口的内部被支撑。为了以简单的方式生产槽形开口，同时在任意构造的中空部分的空心部分的形状保持不受位置公差的可靠过程中，中空部分插入内部高压成形工具的凹部中。中空部分通过集成在内部高压成形工具中的切削工具的切削作用与在中空部分内部产生的内部高压的相互作用开槽。

4. 发明授权

US06434989B1 Method and device for producing leadthroughs on hollow profiles 失效
公开(公告)号：US06434989B1
公开(公告)日：2002-08-20
申请号：US09883982
申请日：2001-06-20
申请人： Uwe Hardtke
发明人： Uwe Hardtke
IPC分类号： B21D2828
CPC分类号： B21D28/28 , Y10T29/49805 , Y10T83/0591
摘要： A method and a device for producing leadthroughs on hollow profiles acted upon by a high fluidic pressure in an internal high-pressure forming tool. Dome-like secondary shaped elements are formed outwards in a radial direction from this hollow profile by the fluid pressurizing. The secondary shaped elements are then reverse drawn into the interior of the hollow profile by a punch while held at the prevailing internal high pressure, whereupon, to open the leadthrough, a punched slug is cut out of the base of the reverse-drawn secondary shaped element by the punch. To ensure the process reliability when producing the leadthrough even in the case of a hollow-profile material having low formability and to retain the strength of the hollow profile in the transition region to the leadthrough, in each case a secondary shaped element is formed out of the hollow profile at two opposite locations. After the forming, the secondary shaped elements are each reverse drawn into the hollow profile interior by a punch in such a way that the bases come to bear against one another inside the hollow profile in the final state of the reverse drawing. The punched slug is severed from the respective base by one punch plunging into the other punch.

5. 发明授权

US06430981B1 Method and device for producing leadthroughs on hollow profiles 失效
公开(公告)号：US06430981B1
公开(公告)日：2002-08-13
申请号：US09884449
申请日：2001-06-20
申请人： Uwe Hardtke
发明人： Uwe Hardtke
IPC分类号： B21D2828
CPC分类号： B21D28/28 , Y10T29/49805
摘要： A method and a device for producing leadthroughs on a hollow profile useing a high fluidic pressure in an internal high-pressure forming tool. Dome-like secondary shaped elements are formed outwards in a radial direction from this hollow profile by the fluidic pressurizing. The secondary shaped elements are then reverse drawn into the interior of the hollow profile by punches at the prevailing internal high pressure. A punched slug is cut out of the base of the reverse-drawn secondary shaped element by the punch. A bent-in margin of the secondary shaped element lying next to the cutout is then straightened by the punch in a displacing movement directed further inwards by being pressed against a hollow-profile wall. To ensure the process reliability when producing the leadthrough even in the case of a hollow-profile material having low formability and to retain the strength of the hollow profile in the transition region to the leadthrough, it is provided in each case to form a secondary shaped element out of the hollow profile at two opposite locations, to reverse draw the secondary shaped elements after the forming, in each case into the hollow-profile interior by a punch in such a way that the bases are at a distance from one another in a final state of the reverse drawing, and to sever the punched slug from the respective base by interaction between the fluidic internal high pressure and an encircling cutting edge of the punch.

6. 发明授权

US06253594B1 Method of producing a stamped item 失效
标题翻译：冲压件的生产方法
公开(公告)号：US06253594B1
公开(公告)日：2001-07-03
申请号：US09549690
申请日：2000-04-14
申请人： Hulon D. Stallings
发明人： Hulon D. Stallings
IPC分类号： B21D2828
CPC分类号： B21D28/32 , B21D22/28 , B21D53/00
摘要： A method of forming a hollow, bullet-shaped article having a strap extending across the normally closed end. The method includes the steps of drawing a metal blank into a cylindrical cup, piercing the bottom of the cup in at least two locations to form a strap, and reducing the diameter of the cup while leaving the length of the strap substantially unchanged so that the strap arcs away from the cup.
摘要翻译：一种形成中空的子弹形状制品的方法，该制品具有延伸穿过常闭端的带。该方法包括以下步骤：将金属坯料拉制成圆柱形杯，在至少两个位置刺穿杯的底部以形成带，并且减小杯的直径，同时使带的长度基本上保持不变，使得带子弧离杯子。

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