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    • 4. 发明授权
    • Musical instrument and method of forming a surface thereof
    • 乐器及其表面形成方法
    • US08455745B2
    • 2013-06-04
    • US12883981
    • 2010-09-16
    • James W. DusinKyle C. Cox
    • James W. DusinKyle C. Cox
    • G10D13/02
    • G10D13/08B21D22/18Y10T29/49Y10T29/49947
    • A musical instrument and method of making the surface of a musical instrument for use as a pan drum includes providing a sheet of metal, securing an outer peripheral region of the sheet of metal such that it is mechanically clamped or held and bringing an the inner region of the sheet of metal and a forming member together in such a manner as to provide a force therebetween while relatively rotating the sheet and the forming member so as to form a bowl which is used as an upper or lower surface of a drum. A thickness of the hemisphere of the bowl varies radially from the outside edge to the central axis such that a region therebetween has a thickness that is at least 30% less than a thickness of the outside edge or a thickness about the central axis.
    • 制作用作平锅鼓的乐器表面的乐器和方法包括提供金属片,固定金属板的外周区域,使得其被机械夹紧或保持,并使内部区域 的金属片和成形部件一起以一定的方式在使片材和成形件相对旋转的同时提供力,从而形成用作鼓的上表面或下表面的碗。 碗的半球的厚度从外边缘到中心轴线径向变化,使得它们之间的区域具有比外边缘的厚度小至少30%的厚度或围绕中心轴线的厚度的厚度。
    • 5. 发明申请
    • MUSICAL INSTRUMENT AND METHOD OF FORMING A SURFACE THEREOF
    • 音乐仪器及其表面形成方法
    • US20110061513A1
    • 2011-03-17
    • US12883981
    • 2010-09-16
    • James W. DUSINKyle C. Cox
    • James W. DUSINKyle C. Cox
    • G10D13/02B21H1/22B23P19/04
    • G10D13/08B21D22/18Y10T29/49Y10T29/49947
    • A musical instrument and method of making the surface of a musical instrument for use as a pan drum includes providing a sheet of metal, securing an outer peripheral region of the sheet of metal such that it is mechanically clamped or held and bringing an the inner region of the sheet of metal and a forming member together in such a manner as to provide a force therebetween while relatively rotating the sheet and the forming member so as to form a bowl which is used as an upper or lower surface of a drum. A thickness of the hemisphere of the bowl varies radially from the outside edge to the central axis such that a region therebetween has a thickness that is at least 30% less than a thickness of the outside edge or a thickness about the central axis.
    • 制作用作平锅鼓的乐器表面的乐器和方法包括提供金属片,固定金属板的外周区域,使得其被机械夹紧或保持,并使内部区域 的金属片和成形部件一起以一定的方式在使片材和成形件相对旋转的同时提供力,从而形成用作鼓的上表面或下表面的碗。 碗的半球的厚度从外边缘到中心轴线径向变化,使得它们之间的区域具有比外边缘的厚度小至少30%的厚度或围绕中心轴线的厚度的厚度。
    • 7. 发明授权
    • Flospinning method and device for carrying out flospinning
    • 折叠方法和装置
    • US06817219B2
    • 2004-11-16
    • US10239214
    • 2003-01-14
    • Guenter Pollkoetter
    • Guenter Pollkoetter
    • B21D2200
    • B21D22/18B21C37/16B21C51/00B21H1/00Y10T29/49771
    • A flow-forming method and apparatus, in which a blank is placed on a rolling mandrel of a flow-forming machine, the blank is rotated relative to at least one flow-forming roll, the at least one flow-forming roll is infed radially and/or axially relative to the blank, and the blank is axially lengthened by the flow-forming roll and flow-formed to a workpiece. The method and apparatus compensate dimensional variations of the blank by working at least one compensating area into the workpiece, determining, before and/or during flow-forming, geometrical data of the blank and/or workpiece with a measuring device, obtaining a desired final geometry of the workpiece by individually calculating the geometrical parameters of the at least one compensating area as a function of the geometrical data determined, and controlling the infeed of the flow-forming roll in accordance with the calculated geometrical parameters of the compensating area, so that a workpiece with the desired final geometry can be formed independently of dimensional variations of the blank.
    • 一种流动成型方法和装置,其中将坯料放置在流动成型机的滚动心轴上,坯料相对于至少一个流动成形辊旋转,至少一个流动成形辊径向辐射 和/或轴向相对于坯料,并且坯料由流动成形辊轴向延长并流动形成工件。 该方法和装置通过将至少一个补偿区域加工到工件中,通过使用测量装置确定,在流体形成之前和/或期间,确定坯料和/或工件的几何数据来补偿坯料的尺寸变化,从而获得期望的最终 通过单独计算所确定的几何数据的函数的至少一个补偿区域的几何参数并根据所计算的补偿区域的几何参数来控制流动成形辊的进给,从而使得工件的几何形状,使得 可以独立于坯件的尺寸变化形成具有所需最终几何形状的工件。
    • 8. 发明申请
    • Flospinning method and device for carrying out flospinning
    • 折叠方法和装置
    • US20040034980A1
    • 2004-02-26
    • US10239214
    • 2003-01-14
    • Guenter Pollkoetter
    • B23Q017/00
    • B21D22/18B21C37/16B21C51/00B21H1/00Y10T29/49771
    • The invention relates to a flow-forming method, in which a blank is placed on a rolling mandrel of a flow-forming machine, the blank is rotated relative to at least one flow-forming roll, the at least one flow-forming roll is infed radially and/or axially relative to the blank and the blank is axially lengthened by the flow-forming roll and flow-formed to a workpiece. The method is inventively characterized in that for compensating dimensional variations of the blank at least one compensating area is worked into the workpiece, that before and/or during flow-forming geometrical data of the blank and/or workpiece are determined with a measuring device, that for obtaining a desired final geometry of the workpiece the geometrical parameters of the at least one compensating area are individually calculated as a function of the geometrical data determined and that by means of a control device the infeed of the flow-forming roll is controlled in accordance with the calculated geometrical parameters of the compensating area, so that a workpiece with the desired final geometry can be formed independently of dimensional variations of the blank. The invention also relates to a flow-forming apparatus.
    • 本发明涉及一种流动成型方法,其中将坯件放置在流动成型机的滚动心轴上,坯料相对于至少一个流动成形辊旋转,至少一个流动成形辊是 相对于坯料径向和/或轴向延伸,并且坯料通过流动成形辊轴向加长并流动形成工件。 本发明的特征在于,为了补偿坯料的尺寸变化,至少一个补偿区域被加工到工件中,在用测量装置确定坯料和/或工件的流动形成几何数据之前和/或期间, 为了获得所需工件的最终几何形状,至少一个补偿区域的几何参数被单独地计算为所确定的几何数据的函数,并且通过控制装置可以控制流动成形辊的进给 根据所计算的补偿区域的几何参数,使得可以独立于坯件的尺寸变化形成具有所需最终几何形状的工件。 本发明还涉及流动形成装置。
    • 9. 发明授权
    • Method for spin forming a tube
    • 旋转成型管的方法
    • US06212926B1
    • 2001-04-10
    • US09295710
    • 1999-04-21
    • Blair L. Jenness
    • Blair L. Jenness
    • B21D2218
    • B21D22/18
    • The present disclosure relates to a method for forming an end portion of a tube. The method includes rotating the tube about a longitudinal axis, heating the end portion of the tube, and forming the end portion of the tube by reciprocating a forming member along a succession of curved forming paths. Each curved forming path is tangent to and curves away from a corresponding one of a succession of angularly spaced apart, substantially straight reference lines. A forming reduction is provided between each curved forming path and its corresponding one of the reference lines.
    • 本公开涉及一种用于形成管的端部的方法。 该方法包括围绕纵向轴线旋转管,加热管的端部,以及通过使成形构件沿着一连串的弯曲成形路径往复运动而形成管的端部。 每个弯曲的成形路径与一系列角度间隔开的基本上直的参考线中的相应的一个相切并且远离其中的曲线。 在每个弯曲成形路径和其对应的一个参考线之间提供成形减小。
    • 10. 发明授权
    • Method & apparatus for shaping a sheet blank
    • 用于成型片坯的方法和装置
    • US5426964A
    • 1995-06-27
    • US136335
    • 1993-10-13
    • Erich Sieger
    • Erich Sieger
    • B21D22/14B21D22/18
    • B21D22/18
    • A method and an apparatus for cold-forming a sheet blank (2') made of a material with an exponential stress-strain behavior to become a thin-walled, hollow shell (2). The sheet blank (2') is clamped in a clamping means (3) with its circumference and rotatingly rotated around its center line (6). The shaping takes place by a first and a second path-controlled press roll (16, 17) engaging at opposite sides of the sheet blank (2') only by local pressure forces, wherein the relative speed between the workpiece (2', 2) and the press rolls and the force exerted by the press rolls to the workpiece are modulated in a manner that the tensile forces applied to the workpiece are below the yield point of the material.
    • 一种用于冷成型由具有指数应力 - 应变特性的材料制成的板坯(2')的方法和装置,以成为薄壁的中空壳体(2)。 片材坯料(2')被夹紧在其周边的夹紧装置(3)中并围绕其中心线(6)旋转旋转。 第一和第二路径控制的压榨辊(16,17)仅通过局部压力作用而啮合在板坯(2')的相对侧上进行成型,其中工件(2',2) ),并且压辊和由压辊施加到工件的力被调制成使得施加到工件的拉伸力低于材料的屈服点。