Roll peening tooling and process

Patent metadata

Field	Value
Publication number	US-9737965-B2
Application number	US-201213355831-A
Country	US
Kind code	B2
Filing date	Jan 23, 2012
Priority date	Jan 23, 2012
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

An example peening tool includes at least one first roller having a peening surface disposed about and along a first core. At least a portion of the at least one first roller is configured to contact a component to be peened along a length. The length extends along at least a portion of the first core. The at least one first roller is configured to provide line contact on the component along the length. A profile of the at least one first roller is determined based on a profile of the component. The peening tool includes a backer disposed in register with the first plurality of rollers such that the first plurality of rollers moves with the backer during peening. The at least one first roller and the backer are configured to be arranged on opposing surfaces of the component. Peening models may predict peening parameters and controller settings.

First claim

What is claimed is:

1. A peening tool comprising:
at least one first roller having a peening surface disposed about and along a first core, wherein at least a portion of the at least one first roller is configured to contact a component to be peened along a length, said length extending along at least a portion of the first core, the at least one first roller configured to provide line contact on the component along the length, wherein a profile of the at least one first roller is determined based on a profile of the component; and
a backer disposed in register with the at least one first roller such that the at least one first roller moves with the backer during peening, wherein the at least one first roller and the backer are configured to be arranged on opposing surfaces of the component;
wherein the backer is at least one second roller disposed about and along a second core, the at least one second roller in register with the at least one first roller such that the at least one first roller moves with the at least one second roller during peening, wherein the at least one first roller and the at least one second roller are configured to be arranged on opposing surfaces of the component;
wherein the at least one first roller and the at least one second roller are independently removable from the first core and second core, respectively.

2. A peening tool comprising:
at least one first roller having a peening surface disposed about and along a first core, wherein at least a portion of the at least one first roller is configured to contact a component to be peened along a length, said length extending along at least a portion of the first core, the at least one first roller configured to provide line contact on the component along the length, wherein a profile of the at least one first roller is determined based on a profile of the component; and
a backer disposed in register with the at least one first roller such that the at least one first roller moves with the backer during peening, wherein the at least one first roller and the backer are configured to be arranged on opposing surfaces of the component;
wherein the backer is at least one second roller disposed about and along a second core, the at least one second roller in register with the at least one first roller such that the at least one first roller moves with the at least one second roller during peening, wherein the at least one first roller and the at least one second roller are configured to be arranged on opposing surfaces of the component;
wherein the profile of the at least one first roller and a profile of the at least one second roller are non-uniform;
wherein:
the at least one first roller includes a plurality of first rollers;
the at least one second roller includes a plurality of second rollers; and
the at least one first rollers have a first end, a second end, and a profile between the first and second ends, the profile being one of (1) generally tapered, (2) generally conical, (3) generally ellipsoidal, (4) and generally spherical along a first portion of the profile and generally cylindrical along a second portion of the profile.

3. The peening tool of claim 2 , wherein the profile of the at least one first roller is tapered.

4. The peening tool of claim 2 , wherein the first core is a rotating core.

5. The peening tool of claim 2 , wherein the at least one first roller and the backer are attached by a spring.

6. The peening tool of claim 5 , wherein the spring includes a plurality of stacked Bellville spring washers.

7. A tooling system for peening comprising:
a milling machine having a spindle moveable along three (3) axes and a base moveable about two rotatable (2) axes, said base configured to hold at least one component; and
a peening tool attached to the spindle, the peening tool including at least one first roller having a peening surface disposed about and along a first core, wherein at least a portion of the at least one first roller is configured to contact a component to be peened along a length, said length extending along at least a portion of the first core, the at least one first roller configured to provide line contact on the component along the length, wherein a profile of the at least one first roller is determined based on a profile of the component, wherein at least one second roller is disposed about and along a second core, the at least one second roller in register with the at least one first roller such that the at least one first roller moves with the at least one second roller during peening, wherein the at least one first roller and the at least one second roller are configured to be arranged on opposing surfaces of the component; and
wherein:
the at least one first roller includes a plurality of first rollers;
the at least one second roller includes a plurality of second rollers; and
the at least one first rollers have a first end, a second end, and a profile between the first and second ends, the profile being one of (1) generally tapered, (2) generally conical, (3) generally ellipsoidal, (4) and generally spherical along a first portion of the profile and generally cylindrical along a second portion of the profile.

8. The tooling system of claim 7 , wherein the base includes a platform moveable about a first of the two axes and a table moveable about a second of the two axes, said base further moveable along any linear axes.

9. The tooling system of claim 8 , wherein the spindle is adapted to be used with a milling tool.

10. The tooling system of claim 8 , further including a controller in communication with the milling machine, wherein the controller controls at least one of a position, rotating speed and feed of the at least one first roller, and a path of the at least one first roller and the at least one second roller.

11. The tooling system of claim 7 , wherein the at least one first roller and the at least one second roller are attached by a spring.

12. The tooling system of claim 11 , wherein the spring includes a plurality of stacked Bellville spring washers.

13. The tooling system of claim 7 , wherein the profile of the at least one first roller and a profile of the at least one second roller are non-uniform.

Assignees

• El-Wardany Tahany Ibrahim
• Viens Daniel V
• Grelotti Robert A
• Zimmerman John F
• Sangiovanni Joseph J
• Hoffman Lee A
• United Technologies Corp

Inventors

• El-Wardany Tahany Ibrahim
• Viens Daniel V
• Grelotti Robert A
• Zimmerman John F
• Sangiovanni Joseph J
• Hoffman Lee A

Classifications

• F01D5/286

  Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion (F01D5/288 takes precedence) · CPC title

• B23P9/02 Primary

  Treating or finishing by applying pressure, e.g. knurling (B23P9/04 takes precedence) · CPC title

• B24B39/06

  designed for working plane surfaces · CPC title

• B24B39/006

  Peening and tools therefor · CPC title

• F05D2260/94

  Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] · CPC title