公开(公告)号：US20250043811A1

公开(公告)日：2025-02-06

申请号：US18926919

申请日：2024-10-25

Applicant: Howmet Aerospace Inc.

Inventor： Luke L. Haylock

IPC: F16B19/10

Abstract: A fastener includes a sleeve, a core bolt and an insert. The sleeve includes a tubular portion and an internal thread. The core bolt includes a cylindrical portion, a threaded portion with an external thread, and a thread runout between the cylindrical portion and the threaded portion. The core bolt is disposed within the sleeve and the external thread engages the internal thread. The insert is disposed within the sleeve and encircles a portion of the core bolt. The insert abuts and is retained between the internal thread and the thread runout in a pre-installation position. The insert is compressed between the internal thread and the thread runout by an installation motion of the core bolt simultaneously with a generation of a compressive load on the sleeve. The insert deforms simultaneously with and facilitates a formation of a bulb in the sleeve in response to the compression.

公开(公告)号：US20230226618A1

公开(公告)日：2023-07-20

申请号：US18188951

申请日：2023-03-23

Applicant: Howmet Aerospace Inc.

Inventor： Luke L. Haylock

IPC: B23B27/14

CPC classification number: B23B27/14

Abstract: A method includes inserting a machining tool through a hole of at least one workpiece that includes a first surface and a second surface opposite the first surface and extends from the first surface to the second surface. The hole forms an inner wall. The machining tool includes a shaft and a cutting tip proximate to one end of the shaft. The cutting tip includes a cutting portion. The method includes positioning the cutting portion of the cutting tip to abut an edge of the hole. The edge is located at a junction of the second surface of the one of the at least one workpiece and the inner wall. The method includes forming a surface modification at the edge with the cutting tip. The method includes removing the machining tool from the hole. The method includes installing a fastener within the hole. The fastener engages the surface modification.

公开(公告)号：US20230138175A1

公开(公告)日：2023-05-04

申请号：US17515108

申请日：2021-10-29

Applicant: Howmet Aerospace Inc.

Inventor： Luke L. Haylock

IPC: F16B19/10

Abstract: A fastener includes a sleeve having a tubular portion including a first end and a second end; a head located at the first end; a deformable portion located at the second end; and a core pin having a first end and a second end. The core pin has an elongated shank portion between the first end of the core pin and the second end of the core pin including a threaded portion proximate the second end of the core pin and a head at the first end of the core pin. The sleeve is configured to receive the core pin. The fastener is configured to secure a plurality of workpieces to one another. The deformable portion is configured deflect in response to compression of the deformable portion by the head of the core pin, to form a flared connection that engages a surface of one of the plurality of workpieces.

公开(公告)号：US20230173589A1

公开(公告)日：2023-06-08

申请号：US17542036

申请日：2021-12-03

Applicant: Howmet Aerospace Inc.

Inventor： Luke L. Haylock

IPC: B23B35/00

CPC classification number: B23B35/00 ,  F16B19/1072

Abstract: A method includes inserting a machining tool through a hole of at least one workpiece that includes a first surface and a second surface opposite the first surface and extends from the first surface to the second surface. The hole forms an inner wall. The machining tool includes a shaft and a cutting tip proximate to one end of the shaft. The cutting tip includes a cutting portion. The method includes positioning the cutting portion of the cutting tip to abut an edge of the hole. The edge is located at a junction of the second surface of the one of the at least one workpiece and the inner wall. The method includes forming a surface modification at the edge with the cutting tip. The method includes removing the machining tool from the hole. The method includes installing a fastener within the hole. The fastener engages the surface modification.