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公开(公告)号:US09545659B2
公开(公告)日:2017-01-17
申请号:US14625671
申请日:2015-02-19
Applicant: National Machinery LLC
Inventor: Thomas E. Hay , Jeffrey W. Carper
Abstract: A tool for a progressive forming machine comprising an assembly having a workpiece shaping cavity symmetrical about an axis and including an end wall transverse to the axis, a conical bore open to the end wall and centered on the axis, the sides of the conical bore being described by a relatively small angle relative to the axis, and an ejector pin for forcing workpieces form the cavity, the ejector pin having an end face and a conical body portion rearward of the end face, the conical body portion having an external surface matching a surface of the conical bore.
Abstract translation: 一种用于渐进成型机的工具,包括具有对称于轴线并且包括横向于轴线的端壁的工件成形腔的组件,通向端壁并且以轴线为中心的锥形孔,锥形孔的侧面为 由相对于轴线相对较小的角度描述,以及用于迫使工件形成空腔的推顶销,顶针具有在端面后方的端面和锥形主体部分,锥形主体部分具有与 圆锥孔的表面。
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公开(公告)号:US20140196518A1
公开(公告)日:2014-07-17
申请号:US13741557
申请日:2013-01-15
Applicant: NATIONAL MACHINERY LLC
Inventor: Jeffrey W. Carper
IPC: B21F1/00
Abstract: A method of improving the surface finish of a sheared end face of a cylindrical blank in a progressive forming machine comprising deforming the end face out of its original as sheared transverse plane into a first shape concentric with the axis of the blank that slightly departs from the original plane a distance that increases with proximity to the axis of the blank, thereafter deforming the end face from the first shape into a second shape in a direction opposite a direction the first shape was displaced from the original shear plane, the second shape slightly departing from a transverse plane a distance that increases with proximity to the axis of the blank.
Abstract translation: 一种改进渐进式成形机中的圆柱形坯料的剪切端面的表面光洁度的方法,包括将端面从其原始剪切的横向平面变形成与坯料的轴线同心的第一形状,该第一形状稍微偏离 原始平面的距离随着靠近坯料的轴线而增加,然后使端面从第一形状变形成与第一形状相反的方向与第一形状相反的方向从原始剪切平面移位,第二形状稍微偏离 从横向平面的距离随着与坯料轴线接近而增加。
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公开(公告)号:US09120143B2
公开(公告)日:2015-09-01
申请号:US13741557
申请日:2013-01-15
Applicant: National Machinery LLC
Inventor: Jeffrey W. Carper
Abstract: A method of improving the surface finish of a sheared end face of a cylindrical blank in a progressive forming machine comprising deforming the end face out of its original as sheared transverse plane into a first shape concentric with the axis of the blank that slightly departs from the original plane a distance that increases with proximity to the axis of the blank, thereafter deforming the end face from the first shape into a second shape in a direction opposite a direction the first shape was displaced from the original shear plane, the second shape slightly departing from a transverse plane a distance that increases with proximity to the axis of the blank.
Abstract translation: 一种改进渐进式成形机中的圆柱形坯料的剪切端面的表面光洁度的方法,包括将端面从其原始剪切的横向平面变形成与坯料的轴线同心的第一形状,该第一形状稍微偏离 原始平面的距离随着靠近坯料的轴线而增加,然后使端面从第一形状变形成与第一形状相反的方向与第一形状相反的方向从原始剪切平面移位,第二形状稍微偏离 从横向平面的距离随着与坯料轴线接近而增加。
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公开(公告)号:US09016184B2
公开(公告)日:2015-04-28
申请号:US13628246
申请日:2012-09-27
Applicant: National Machinery LLC
Inventor: Thomas E. Hay , Jeffrey W. Carper , Stanley J. Wasserman
CPC classification number: B21K21/04 , B21D51/54 , B21J5/025 , B21J5/027 , B21J13/02 , B23D21/14 , B23P15/22 , F42B5/28
Abstract: An improved cartridge case completely produced net shape on a progressive cold former that includes a trim to lengthy station with an internal shearing tool.
Abstract translation: 改进的盒式外壳在逐渐冷却成型机上完全产生净形状,其包括具有内部剪切工具的修剪至冗长的工位。
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公开(公告)号:USD694788S1
公开(公告)日:2013-12-03
申请号:US29433218
申请日:2012-09-27
Applicant: National Machinery LLC
Designer: Jeffrey W. Carper
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公开(公告)号:US20200056870A1
公开(公告)日:2020-02-20
申请号:US16661058
申请日:2019-10-23
Applicant: National Machinery LLC
Inventor: Jeffrey W. Carper , Christopher W. Snavely
Abstract: A method and tooling for forming a cartridge case blank comprising backward extruding a tube from a length of wire stock in multiple backward extrusion steps with progressive tooling to obtain an intermediate blank that can be finish drawn without a preceding annealing step and which if otherwise not subjected to multiple backward extrusion steps, would require annealing prior to finish drawing to avoid tearing.
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公开(公告)号:US20180259309A1
公开(公告)日:2018-09-13
申请号:US15451717
申请日:2017-03-07
Applicant: National Machinery LLC
Inventor: Jeffrey W. Carper , Christopher W. Snavely
Abstract: A method and tooling for forming a cartridge case blank comprising backward extruding a tube from a length of wire stock in multiple backward extrusion steps with progressive tooling to obtain an intermediate blank that can be finish drawn without a preceding annealing step and which if otherwise not subjected to multiple backward extrusion steps, would require annealing prior to finish drawing to avoid tearing.
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公开(公告)号:US20150174643A1
公开(公告)日:2015-06-25
申请号:US14642928
申请日:2015-03-10
Applicant: National Machinery LLC
Inventor: Thomas E. Hay , Jeffrey W. Carper , Stanley J. Wasserman
CPC classification number: B21K21/04 , B21D51/54 , B21J5/025 , B21J5/027 , B21J13/02 , B23D21/14 , B23P15/22 , F42B5/28
Abstract: An improved cartridge case completely produced net shape on a progressive cold former that includes a trim to lengthy station with an internal shearing tool.
Abstract translation: 改进的盒式外壳在逐渐冷却成型机上完全产生净形状,其包括具有内部剪切工具的修剪至冗长的工位。
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公开(公告)号:USD696317S1
公开(公告)日:2013-12-24
申请号:US29433214
申请日:2012-09-27
Applicant: National Machinery LLC
Designer: Jeffrey W. Carper
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公开(公告)号:US11333473B2
公开(公告)日:2022-05-17
申请号:US16661058
申请日:2019-10-23
Applicant: National Machinery LLC
Inventor: Jeffrey W. Carper , Christopher W. Snavely
Abstract: A method and tooling for forming a cartridge case blank comprising backward extruding a tube from a length of wire stock in multiple backward extrusion steps with progressive tooling to obtain an intermediate blank that can be finish drawn without a preceding annealing step and which if otherwise not subjected to multiple backward extrusion steps, would require annealing prior to finish drawing to avoid tearing.
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