公开(公告)号：WO2005074600A3

公开(公告)日：2006-11-09

申请号：PCT/US2005003190

申请日：2005-02-02

Applicant: STRESSWAVE INC ,  EASTERBROOK ERIC T

Inventor： EASTERBROOK ERIC T

IPC: B23K11/30 ,  B23K11/11 ,  C21D7/02

CPC classification number: B23K11/115 ,  C21D7/02

Abstract: A method for cold working spot welded structures to improve fatigue life, and structures made by the method. Partially finished structures are provided assembled and joined by a spot weld nugget (50). Opposing indenters (46,48), or an indenter and a backing anvil, are used to squeeze the spot weld nugget to form one or two cold working dimples, respectively. Residual compressive stress is imparted in the workpiece,resulting in increased fatigue life.

Abstract translation: 一种用于冷加工点焊结构以提高疲劳寿命的方法，以及通过该方法制成的结构。 组装并通过点焊块（50）连接的部分完成结构。 相反的压头（46,48）或压头和后座砧被用来挤压点焊块，分别形成一个或两个冷作用凹坑。 在工件中施加残余压应力，导致疲劳寿命增加。

公开(公告)号：WO0158617A9

公开(公告)日：2002-04-18

申请号：PCT/US0104240

申请日：2001-02-09

Applicant: STRESSWAVE INC

Inventor： EASTERBROOK ERIC T ,  JUHLIN NILS

IPC: F16B19/06 ,  B21D22/04 ,  B21J5/02 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  B21D28/00

CPC classification number: B23P9/025 ,  B21C23/001 ,  B21J1/025 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  C21D2221/00

Abstract: A compound indenter (18) for metal coldwork, and a method of employing such tooling. The compound indenter tool (18) is used to produce deformation in a workpiece structure (30), to provide a selected beneficial residual stress profile in the workpiece (30), in order to provide high fatigue life structures in a minimum number of manufacturing steps. Preferably, action of a compound indenter (18) causes deformation of the workpiece, causing dimples in the workpiece. An improved, compound indenter tool profile shape is described, having a first, elongate indenter (20) with a shaped indenter surface portion, and a second shaped indenter (22) surrounding the first indenter and forming an annular shoulder (44) recessed from the surface portion of the first indenter. Additionally, a foot (60) having a bottom portion (80) can be used to confiningly surround the second indenter during application of force to the surface of a workpiece, to prevent surface deformation.

Abstract translation: 用于金属冷加工的复合压头（18）以及使用这种工具的方法。 复合压头工具（18）用于在工件结构（30）中产生变形，以在工件（30）中提供选定的有益残余应力分布，以便在最少数量的制造步骤中提供高疲劳寿命结构 。 优选地，复合压头（18）的作用引起工件的变形，从而在工件中引起凹坑。 描述了一种改进的复合压头工具轮廓形状，其具有带有成形压头表面部分的第一细长压头（20）和围绕第一压头并形成环形肩部（44）的第二成形压头（22），所述环形肩部 第一压头的表面部分。 另外，具有底部（80）的脚（60）可用于在向工件的表面施加力的过程中限制性地围绕第二压头，以防止表面变形。

公开(公告)号：WO0158617A8

公开(公告)日：2002-02-14

申请号：PCT/US0104240

申请日：2001-02-09

Applicant: STRESSWAVE INC

Inventor： EASTERBROOK ERIC T ,  JUHLIN NILS

IPC: F16B19/06 ,  B21D22/04 ,  B21J5/02 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  B21D28/00

CPC classification number: B23P9/025 ,  B21C23/001 ,  B21J1/025 ,  B21J15/00 ,  B21J15/10 ,  B23P9/04 ,  C21D7/02 ,  C21D2221/00

Abstract: A compound indenter (18) for metal coldwork, and a method of employing such tooling. The compound indenter tool (18) is used to produce deformation in a workpiece structure (30), to provide a selected beneficial residual stress profile in the workpiece (30), in order to provide high fatigue life structures in a minimum number of manufacturing steps. Preferably, action of a compound indenter (18) causes deformation of the workpiece, causing dimples in the workpiece. An improved, compound indenter tool profile shape is described, having a first, elongate indenter (20) with a shaped indenter surface portion, and a second shaped indenter (22) surrounding the first indenter and forming an annular shoulder (44) recessed from the surface portion of the first indenter. Additionally, a foot (60) having a bottom portion (80) can be used to confiningly surround the second indenter during application of force to the surface of a workpiece, to prevent surface deformation.

Abstract translation: 用于金属冷加工的复合压头（18）以及采用这种工具的方法。 复合压头工具（18）用于在工件结构（30）中产生变形，以在工件（30）中提供选定的有益的残余应力轮廓，以便在最少数量的制造步骤中提供高疲劳寿命结构 。 优选地，化合物压头（18）的作用导致工件变形，导致工件中的凹坑。 描述了改进的复合压头工具轮廓形状，其具有带有成形压头表面部分的第一细长压头（20）和围绕第一压头的第二成形压头（22），并且形成从 第一压头的表面部分。 此外，具有底部（80）的脚（60）可以用于在对工件的表面施加力期间限制地围绕第二压头，以防止表面变形。