US 10,240,454 B2Granted

Lip skin sector and a method and apparatus for forming a lip skin sector

AssigneeRohr, Inc.

InventorsMichael Ludlow, David McCracken

Life of this patent

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Abstract

An apparatus for forming a sector of an annular component having an arrangement for securely retaining at least a portion of a blank mountable thereon. The retaining arrangement is adapted for leaving a portion of the retainable blank accessible. A punch is provided having an external surface contour shaped to correspond to the shape of all or a part of the profile of the sector of the annular component from a trailing edge to a leading edge and/or from a leading edge to an inlet edge. The apparatus has a cooperating forming arrangement for forming the profile of the sector of the annular component from the leading edge to the inlet edge. The retaining arrangement is adapted for forming a clamping boundary enclosing the accessible part of the blank to be formed by the punch.

Claims2

Dependent claims

A method of forming a sector of an annular component, the method comprising the steps of:

clamping at least part of a blank along a clamping boundary in a retaining means so as to leave a portion of the blank exposed within the clamping boundary, the retaining means comprising a blank holder and a die;
moving a at least one of a punch and the retaining means radially so that the punch comes in to contact with the exposed portion of the blank and through a main body of the exposed blank thereby drawing the blank onto an external surface of the punch forming the sector from a leading edge to a trailing edge;
activating a cooperating forming arrangement for engaging the blank;
drawing the blank over the punch forming the sector of the annular component from the leading edge to an inlet edge;
and
aligning a cutout of the die and a cutout of the blank holder defining a gap for facilitating location of the punch.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/956,471Filed 18 Apr 2018 · division
Priority: GB 1301627.430 Jan 2013
Published: US 2018/0245454 A130 Aug 2018
Granted: 26 Mar 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

E21B 47/085
Measuring diameters or related dimensions at the borehole: using radiant means, e.g. acoustic, radioactive or electromagnetic
B21D 22/02
Shaping without cutting, by stamping, spinning, or deep-drawing: stamping using rigid devices or tools
B21D 25/02
Working sheet metal of limited length by stretching, e.g. for straightening: by pulling over a die
B21D 25/04
Working sheet metal of limited length by stretching, e.g. for straightening: clamping arrangements

Family

PCT/EP2014/051853Parent of this division · filed 30 Jan 2014
US 2018/0245454 A1Pre-grant publication · published 30 Aug 2018
Application14/764,778Parent of this division
US 9,975,162 B2Parent of this division
US 2015/0367395 A1Published application
US 10,240,454 B2This patent

From the US filing history. Foreign family members aren’t listed.