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1. 发明申请

US20050081589A1 Method and apparatus for forming a threaded hole in a hydroformed part 失效
公开(公告)号：US20050081589A1
公开(公告)日：2005-04-21
申请号：US10690100
申请日：2003-10-21
申请人： Mircea Ghiran , Spyros Mellas , Benjamin Kaufman
发明人： Mircea Ghiran , Spyros Mellas , Benjamin Kaufman
IPC分类号： B21D28/28 , B21D28/18
CPC分类号： B21D28/28 , Y10T29/49805 , Y10T83/0596
摘要： Method and apparatus are disclosed wherein a required threaded hole is formed in a hydroformed part with a single tool while the part remains in a hydroforming die cavity. In forming the threaded hole, a hole is first pierced in the wall of the part and then an annular region of the part extending about the hole is extruded inwardly to form an integral tubular neck defining a hole of predetermined depth. The hole is then expanded in a sizing operation to a diameter determined by the required thread to be formed therein by material displacement and the required thread is then formed in the wall of the hole in a material displacing manner.

2. 发明申请

US20070193013A1 Method for forming a complex-shaped tubular structure 有权
标题翻译：形成复杂形管状结构的方法
公开(公告)号：US20070193013A1
公开(公告)日：2007-08-23
申请号：US11358666
申请日：2006-02-21
申请人： Spyros Mellas , Paul Benton , Charles Bruggemann , Mark Goebel , Joseph Lendway , Tuan Ngo , Peter Parlow , Carl Robinson
发明人： Spyros Mellas , Paul Benton , Charles Bruggemann , Mark Goebel , Joseph Lendway , Tuan Ngo , Peter Parlow , Carl Robinson
IPC分类号： B23P17/00 , B23P11/00 , B23P13/04
CPC分类号： B21C37/185 , B21C37/065 , B21D26/033 , B62D25/04 , Y10T29/49622 , Y10T29/49805 , Y10T29/49968 , Y10T29/49995
摘要： A method is provided for forming a complexly-shaped tubular structure such as a tapered pillar or other structure for a vehicle body. A sheet metal blank having a longitudinal axis is rolled about the longitudinal axis to form a tubular shape and the side edges of the blank are then welded together to form a tube. The tube is then enclosed in a hydroforming die and pressurized to conform the tube to the shape of the die and thereby form the desired complex shape. The sheet metal blank may be formed by the end-to-end welding together of a plurality of separate sheet metal blanks that differ from one another in characteristic including material thickness, material alloy composition, and/or coating. One or more of the blanks can have side edges that are non-parallel so that the tube will taper in diameter along its length.
摘要翻译：提供了一种用于形成诸如锥形支柱或其他用于车体的结构的复杂形状的管状结构的方法。具有纵向轴线的片状金属坯料围绕纵向轴线卷绕以形成管状，然后将坯料的侧边缘焊接在一起以形成管。然后将管道封闭在液压成形模具中并加压以使管与管芯的形状一致，从而形成所需的复合形状。金属板坯可以通过在包括材料厚度，材料合金组成和/或涂层的特性彼此不同的多个单独的金属板坯的端对端焊接在一起而形成。一个或多个坯料可以具有不平行的侧边缘，使得管沿着其长度的直径逐渐变细。

3. 发明申请

US20050199029A1 Hydrotapping power unit 失效
标题翻译：水力发电机组
公开(公告)号：US20050199029A1
公开(公告)日：2005-09-15
申请号：US10799068
申请日：2004-03-12
申请人： Mircea Ghiran , Spyros Mellas , David Jensen , Paul Larsen
发明人： Mircea Ghiran , Spyros Mellas , David Jensen , Paul Larsen
IPC分类号： B21D28/18
CPC分类号： B21D26/033 , B21D28/28
摘要： A hydrotapping power unit is disclosed that is operable to hold a hydrotapping tool in a home position adjacent a part while the latter is being hydroformed in a die cavity, to then advance the tool to pierce a hole in the hydroformed part while the part remains in the die cavity and under pressure and then continue to advance the tool to inwardly extrude the part about the hole, to then further advance while also rotating the tool at a feed rate equal to the thread pitch of the tool to thereby form a thread in the pierced hole, and finally retract while also rotating the tool but in the reverse direction and at the same feed rate to release the tool from the threaded hole. The power unit for performing these operations includes a linearly moveable shaft for holding the tool, a powered device for rotating the shaft, another powered device connected to the shaft by a lead screw connection having a thread pitch equal to that of the tool, and a third powered device that is adapted to intercept and prevent shock loading on the tool from the piercing operation and thereby on the shaft from reaching the lead screw connection.
摘要翻译：公开了一种可以将疏水工具保持在与零件相邻的原始位置，同时在模腔中被液压成形的水力攻击动力单元，然后使工具在液压成形部分中刺入孔，同时将零件保持在模腔和压力下，然后继续推进工具以向内挤压零件围绕孔，然后进一步前进，同时还以等于工具的螺距的进给速率旋转工具，从而在工具中形成螺纹穿孔，并且最后缩回，同时也旋转工具，但是在相反方向和相同的进给速度下将工具从螺纹孔释放。用于执行这些操作的动力单元包括用于保持工具的直线运动轴，用于旋转轴的动力装置，通过螺纹间距等于工具的螺纹螺纹连接到轴的另一个动力装置，以及第三动力装置，其适于拦截并防止来自穿刺操作的工具上的冲击载荷，从而在轴上达到丝杠连接。

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