公开(公告)号：US20240226980A9

公开(公告)日：2024-07-11

申请号：US18547366

申请日：2022-12-08

Applicant: RATTUNDE AG

Inventor： ULRICH RATTUNDE

IPC: B21D3/10 ,  B21C51/00 ,  G01B21/20

CPC classification number: B21D3/10 ,  B21C51/00 ,  G01B21/20

Abstract: The invention relates to a method for straightening non-straight bar-shaped material (1) by determining a target plastic deformation (s_soll) at a forming position (12) of the bar-shaped material (1), moving a straightening hammer (8) with integrated measuring probe (7) to the forming position (12), a first forming stroke (h_1) of the straightening hammer (8) is carried out, an actual plastic deformation (s_ist) caused by the first forming stroke (h_1) is determined by means of the integrated measuring probe (7), a second forming stroke (h_2) is determined from the actual plastic deformation (s_ist) caused by the first forming stroke (h_1) and the target plastic deformation (s_soll).

公开(公告)号：US11198166B2

公开(公告)日：2021-12-14

申请号：US16339847

申请日：2017-10-19

Applicant: ROLLERI S.P.A.

Inventor： Domenico Mazzocchi

IPC: B21D5/02 ,  B21D5/01 ,  B21D3/10 ,  B21D5/06 ,  B21D37/02 ,  B30B15/00

Abstract: Disclosed is a die for a press brake including a base, a first half portion and a second half portion of a mold, each including a plurality of plates parallel to one another and alternated in a longitudinal direction of the die, the die including a translation device to move the half portions away from and toward each other, the device including a plurality of guides obtained on the plates, a shaft slidingly engaged with the guides, a first pinion and a second pinion mounted on the shaft and at least a first rack and at least a second rack respectively on a first plate of the first half portion and on a second plate of the second half portion and meshed respectively with the first and second pinion.

公开(公告)号：US20210229153A1

公开(公告)日：2021-07-29

申请号：US17054031

申请日：2019-08-06

Applicant: NIPPON STEEL CORPORATION

Inventor： Koichi KURODA ,  Shuji OTAO

IPC: B21D3/10

Abstract: Method for bend straightening in which a steel pipe having a bend is placed in a state where the steel pipe is convex upward, the steel pipe is pressed from above by a press unit at a target load value, whereby the steel pipe is straightened, the method including: (a) measuring a bottom-dead-center load value Pk when the press unit is at a bottom dead center in the pressing; (b) measuring an amount of change 46 in amount of bend between an amount of bend of the steel pipe before the pressing in step (a) and an amount of bend of the steel pipe after the pressing in the step (a); (c) repeating step (a) and step (b) a plurality of times to create a relational expression Pk=(Δδ); and (d) determining a target load value for next pressing from the relational expression Pk =(Δδ).

公开(公告)号：US10780479B2

公开(公告)日：2020-09-22

申请号：US15890775

申请日：2018-02-07

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Lucas Schulte-Vorwick

IPC: B21D1/06 ,  B21D3/10 ,  B21D1/00 ,  B21D25/00 ,  B21D25/04

Abstract: A method for straightening a distortion of a component by way of a straightening device is provided. The straightening device includes a clamping element for clamping in the component, a straightening element for introducing a straightening force into the component, and an anvil element for supporting the component during the introduction of the straightening force. Furthermore, a straightening device for straightening a distortion of a component is provided. The straightening device includes a clamping element for clamping in the component, a straightening element for introducing a straightening force into the component, an anvil element for supporting the component during the introduction of the straightening force, and a control element for operating the straightening device.

公开(公告)号：US10391536B1

公开(公告)日：2019-08-27

申请号：US15086557

申请日：2016-03-31

Applicant: Shawn Hubbard

Inventor： Shawn Hubbard

IPC: B21D3/10 ,  B21D11/20 ,  B21D39/02 ,  B21D1/12 ,  B21D1/06

Abstract: A tool kit for bending a metal tray including a middle bending tool, a right bending tool, and a left bending tool. The middle bending tool further includes a middle lower handle and a C-shaped middle top clamping member. The middle lower handle is perpendicularly extended from the middle bottom plate of the middle top clamping member. The right bending tool further includes a right lower handle and a C-shaped right top clamping member. The right lower handle is rightwardly extended at a forty-five degree angle from the right bottom plate of the right top clamping member. The left bending tool further includes a left lower handle and a C-shaped left top clamping member. The left lower handle is leftwardly extended at a forty-five degree angle from the left bottom plate of the left top clamping member.

公开(公告)号：US20190240712A1

公开(公告)日：2019-08-08

申请号：US16129139

申请日：2018-09-12

Applicant: Leak Man Supply, LLC

Inventor： Frank Semeraro

IPC: B21D3/10 ,  F16L55/18 ,  B25B1/24

CPC classification number: B21D3/10 ,  B25B1/241 ,  F16L55/18

Abstract: A method for rerounding a tubular structure includes the steps of: (1) inserting the tubular structure into a rerounding tool that is in an open position, the rerounding tool having a first block with a first semi-circular trough formed therein in a first surface thereof and a second block with a second semi-circular trough formed therein in a second surface thereof, the tubular structure being laid within the first trough; and (2) closing the rerounding tool by bringing the first surface into contact with the second surface such that the tubular structure is also received within the second semi-circular trough resulting in rerounding of the tubular structure due to the first semi-circular trough and the second semi-circular trough defining a cylindrical cavity.

公开(公告)号：US10300517B2

公开(公告)日：2019-05-28

申请号：US15268672

申请日：2016-09-19

Applicant: WAMACO, LLC

Inventor： Warren Harold Schulte

IPC: B21D3/10 ,  B21C51/00

Abstract: A method and apparatus for straightening a casing is provided herein. The method can include securing a casing in a pipe end straightener, where the pipe end straightener includes a mounting platform, an analog feedback device, and a hydraulic press. The method can also include measuring one or more characteristics of a bent portion of the casing with the analog feedback device. The method can also include straightening the casing by applying a calculated force to the casing with the hydraulic press.

公开(公告)号：US20180229289A1

公开(公告)日：2018-08-16

申请号：US15896759

申请日：2018-02-14

Applicant: United States Steel Corporation

Inventor： Peter W. MOORE ,  Bisen LIN

IPC: B21D35/00 ,  B21D3/10 ,  B21B17/14 ,  B21B19/06 ,  B21B45/00 ,  B21D26/033 ,  B21D22/28

CPC classification number: B21D35/005 ,  B21B17/14 ,  B21B19/06 ,  B21B45/004 ,  B21D3/02 ,  B21D3/10 ,  B21D22/28 ,  B21D26/033 ,  B21H1/20 ,  B21J5/022 ,  C21D7/10 ,  C21D9/08

Abstract: A method to improve the collapse resistance of metallic tubular products is disclosed. The method comprises identifying the types of stress that can be applied in order to change the residual stress profile of metallic tubular products, such as those that have completed a straightening process, and results in a residual stress profile that improves collapse resistance. The metallic tubular product is subjected to radial compression processing to control the residual stress profile and to enhance collapse resistance. The radial compression process may be used after the tubular product has been subjected to a straightening process.

公开(公告)号：US09156074B2

公开(公告)日：2015-10-13

申请号：US12737077

申请日：2009-05-28

Applicant: Jochem Beissel ,  Thilo Reichel

Inventor： Jochem Beissel ,  Thilo Reichel

IPC: B21D3/10 ,  B21D5/10 ,  B21C37/30 ,  B21C37/08 ,  B21D5/14

CPC classification number: B21D3/10 ,  B21C37/0807 ,  B21C37/30 ,  B21D5/10 ,  B21D5/14

Abstract: A method for producing a steel tube, wherein a steel sheet is formed into tubular body having a round cross section in a bending process, welded in a subsequent welding process along longitudinal edges facing each other for producing a continuous longitudinal seam, and then subjected to a stress-relieving treatment. The production quality is improved, with reduced production time, because the stress-relieving treatment is performed in a process for concentrically truing along the circumference in at least one segment relative to the longitudinal axis thereof, while cold forming by compression (FIG. 1). The mechanical technological properties of the material are also thereby improved.

Abstract translation: 一种钢管的制造方法，其特征在于，钢板在弯曲加工中形成为具有圆形截面的管状体，在随后的焊接工序中，沿着彼此面对的纵向边缘焊接，制造连续的纵向接缝， 减轻压力的治疗。 由于在通过压缩冷成形（图1）的同时沿着相对于其纵向轴线的至少一个部分中的圆周进行同心整理的过程中执行应力消除处理，生产质量得到改善，生产时间缩短， 。 因此，材料的机械技术性能也得到改善。

公开(公告)号：US07690239B2

公开(公告)日：2010-04-06

申请号：US12003920

申请日：2008-01-03

Applicant: Robert J. Griffis

Inventor： Robert J. Griffis

IPC: B21D3/10 ,  B25B27/00

CPC classification number: B21D1/06 ,  Y10S72/705 ,  Y10T29/53709 ,  Y10T29/53996

Abstract: The sheet metal pry hooks are pry hooks having a hook end oriented in a manner to allow gripping and bending of an automotive sheet metal panel(s) in almost any situation encountered in the repair of such panel(s). As presently contemplated, the pry hooks will be made available either individually or as a kit of three pry hooks having different configurations of the hook, including at least one hook having the hook member offset from the longitudinal axis of the shank of the tool. The kit allows a user to have at hand a complete array of hooks needed for bending and orienting sheet metal panels in almost any repair situation.

Abstract translation: 钣金撬钩是具有钩端的撬钩，钩端以允许在几乎任何这种面板的修理中遇到的任何情况下夹持和弯曲汽车金属板的方式。 如目前预期的那样，撬钩将单独地或作为具有钩的不同构型的三个撬钩的套件提供，包括至少一个钩，该钩具有与工具的柄的纵向轴线偏移的钩构件。 该套件允许用户在几乎任何修理情况下拥有完整的一组钩子，用于弯曲和定向金属板。