公开(公告)号：US20040020967A1

公开(公告)日：2004-02-05

申请号：US10631906

申请日：2003-07-31

Applicant: The Boeing Company

Inventor： Edward Litwinski ,  Rahmatollah F. Toosky

IPC: B23K001/00

CPC classification number: B23K20/1275 ,  B21J15/027

Abstract: A rivet having improved formability is provided. The rivet has a shank having a head at one end. The shank and the head have a refined grain structure. The rivet is manufactured from the region of the workpiece having a refined grain structure by first forming a region having a refined grain structure in a workpiece and then forming the rivet. The refined grain structure results in improved mechanical properties, such as formability, strength, toughness, ductility, corrosion resistance, and fatigue resistance. The improved formability of the rivet reduces the formation and propagation of cracks during the manufacture and installation of the rivets.

公开(公告)号：US20030218053A2

公开(公告)日：2003-11-27

申请号：US10145342

申请日：2002-05-14

Applicant: The Boeing Company

Inventor： Mr. Edward Litwinski ,  Rahmatollah F. Toosky

IPC: B23K031/02

CPC classification number: B23K20/1275 ,  B21J15/027

Abstract: Abstract of the Disclosure A rivet having improved formability is provided. The rivet has a shank having a head at one end. The shank and the head have a refined grain structure. The rivet is manufactured from the region of the workpiece having a refined grain structure by first forming a region having a refined grain structure in a workpiece and then forming the rivet. The refined grain structure results in improved mechanical properties, such as formability, strength, toughness, ductility, corrosion resistance, and fatigue resistance. The improved formability of the rivet reduces the formation and propagation of cracks during the manufacture and installation of the rivets.

Abstract translation: 本发明摘要提供了一种具有改进成形性的铆钉。 铆钉在一端具有头部的柄。 柄和头部具有精细的晶粒结构。 通过首先在工件上形成具有精细晶粒结构的区域，然后形成铆钉，由具有精细晶粒结构的工件的区域制造铆钉。 精细的晶粒结构可以提高成形性，强度，韧性，延展性，耐腐蚀性和耐疲劳性等机械性能。 铆钉的改进成形性降低了在制造和安装铆钉期间裂缝的形成和传播。

公开(公告)号：US20040022603A1

公开(公告)日：2004-02-05

申请号：US10631907

申请日：2003-07-31

Applicant: The Boeing Company

Inventor： Edward Litwinski ,  Rahmatollah F. Toosky

IPC: F16B019/08

CPC classification number: B23K20/1275 ,  B21J15/027

Abstract: A rivet having improved formability is provided. The rivet has a shank having a head at one end. The shank and the head have a refined grain structure. The rivet is manufactured from the region of the workpiece having a refined grain structure by first forming a region having a refined grain structure in a workpiece and then forming the rivet. The refined grain structure results in improved mechanical properties, such as formability, strength, toughness, ductility, corrosion resistance, and fatigue resistance. The improved formability of the rivet reduces the formation and propagation of cracks during the manufacture and installation of the rivets.

Abstract translation: 提供了具有改进的成形性的铆钉。 铆钉在一端具有头部的柄。 柄和头部具有精细的晶粒结构。 通过首先在工件上形成具有精细晶粒结构的区域，然后形成铆钉，由具有精细晶粒结构的工件的区域制造铆钉。 精细的晶粒结构可以提高成形性，强度，韧性，延展性，耐腐蚀性和耐疲劳性等机械性能。 铆钉的改进成形性降低了在制造和安装铆钉期间裂缝的形成和传播。