Richard D Tenaglia

US Patent:

6583384, Jun 24, 2003

Filed:

Jul 23, 2001

Appl. No.:

09/911070

Inventors:

Richard D. Tenaglia - Columbus OH
Jeff L. Dulaney - Dublin OH
Allan H. Clauer - Worthington OH

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

B23K 2600

US Classification:

21912185, 427554

Abstract:

The invention, in another form thereof, comprises a method of laser shock peening the surface of a solid material with or without the use of a transparent overlay material. An energy absorbing coating is applied to a portion of the surface of a solid material. An ultraviolet-curable resin coating is applied to the energy absorbing coating and the curable resin is exposed to an ultraviolet light and forms a pellicle over the energy absorbing coating. A pulse of coherent energy is directed to the energy absorbing coating of the solid material to create a shock wave.

US Patent:

6747240, Jun 8, 2004

Filed:

Feb 21, 2003

Appl. No.:

10/372520

Inventors:

Richard D. Tenaglia - Columbus OH
Jeff L. Dulaney - Dublin OH
Allan H. Clauer - Worthington OH

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

B23K 2600

US Classification:

2191216, 21912168, 21912182

Abstract:

A method and apparatus for increasing the effectiveness and efficiency of laser shock processing of a solid material. The method includes applying an energy absorbing coating to a portion of the surface of a solid material, applying an ultraviolet curable resin to the coated portion of the surface of the solid material, applying an ultraviolet light to the curable resin to form a pellicle over the energy absorbing coating on the surface of the solid material, and applying a transparent overlay to the pellicular portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. After the pulse of coherent energy is directed to the solid material, a high-speed jet of fluid may be directed to the coated portion of the solid material to remove the remaining coating from the solid material.

US Patent:

7861573, Jan 4, 2011

Filed:

Nov 28, 2007

Appl. No.:

11/946139

Inventors:

Richard D. Tenaglia - Westerville OH, US

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

G01M 7/00

US Classification:

73 1208

Abstract:

Laser shock methods and systems are disclosed for evaluating impact resistance of materials, and for simulating and evaluating threshold conditions where damage may occur.

US Patent:

7868268, Jan 11, 2011

Filed:

Aug 22, 2007

Appl. No.:

11/843363

Inventors:

Richard D. Tenaglia - Columbus OH, US
Jeff L. Dulaney - Dublin OH, US
David F. Lahrman - Powell OH, US

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

B23K 26/00

US Classification:

2191216, 21912185, 21912186, 427554, 148508, 148525

Abstract:

The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves there through. Laser shock processing is used to provide the shockwaves. The method includes applying a liquid energy-absorbing overlay, which is resistant to erosion and dissolution by the transparent water overlay and which is resistant to drying to a portion of the surface of the solid material and then applying a transparent overlay to the coated portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. Advantageously, at least a portion of the unspent energy-absorbing overlay can be reused in situ at a further laser treatment location and/or recovered for later use.

US Patent:

7906745, Mar 15, 2011

Filed:

Dec 10, 2004

Appl. No.:

11/009123

Inventors:

Richard D. Tenaglia - Columbus OH, US
Allan H. Clauer - Worthington OH, US
Jeff L. Dulaney - Dublin OH, US
David F. Lahrman - Powell OH, US
Steve Toller - Dublin OH, US

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

B23K 26/00

US Classification:

21912185, 2191216, 21912183

Abstract:

A bend bar is available for use in a quality control test for testing for a consistency of residual stress effects in a particular material using a given a laser peening process. The bar is composed of the particular material to be tested and has a bar length and a bar thickness. The particular material has a characteristic maximum stress penetration depth for compressive residual stresses that can be formed in using the given laser peening process. The bar thickness is chosen so as to be at least twice the characteristic maximum stress penetration depth. The bar has a test surface that extends parallel to the bar length and perpendicular to the bar thickness. After forming a spot pattern on the test surface using the given laser peening process, the deflection generated in the bar due to the compressive residual stresses induced by laser peening can then be measured and used as a quality control measurement.

US Patent:

RE43176, Feb 14, 2012

Filed:

Jan 11, 2008

Appl. No.:

12/013024

Inventors:

Richard D. Tenaglia - Columbus OH, US
Jeff L. Dulaney - Dublin OH, US
David F. Lahrman - Powell OH, US

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

B23K 26/00

US Classification:

21912185

Abstract:

The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves there through. Laser shock processing is used to provide the shockwaves. The method includes applying a liquid energy-absorbing overlay, which is resistant to erosion and dissolution by the transparent water overlay and which is resistant to drying to a portion of the surface of the solid material and then applying a transparent overlay to the coated portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. Advantageously, at least a portion of the unspent energy-absorbing overlay can be reused in situ at a further laser treatment location and/or recovered for later use.

US Patent:

7268317, Sep 11, 2007

Filed:

Sep 2, 2003

Appl. No.:

10/654369

Inventors:

Richard D. Tenaglia - Columbus OH, US
Jeff L. Dulaney - Dublin OH, US
David F. Lahrman - Powell OH, US

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

B23K 26/00

US Classification:

21912185

Abstract:

The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves there through. Laser shock processing is used to provide the shockwaves. The method includes applying a liquid energy-absorbing overlay, which is resistant to erosion and dissolution by the transparent water overlay and which is resistant to drying to a portion of the surface of the solid material and then applying a transparent overlay to the coated portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. Advantageously, at least a portion of the unspent energy-absorbing overlay can be reused in situ at a further laser treatment location and/or recovered for later use.

US Patent:

20110126605, Jun 2, 2011

Filed:

Feb 8, 2011

Appl. No.:

13/023513

Inventors:

Richard D. Tenaglia - Columbus OH, US
Allan H. Clauer - Worthington OH, US
Jeff L. Dulaney - Delaware OH, US
David F. Lahrman - Powell OH, US
Steve Toller - Dublin OH, US

Assignee:

LSP Technologies, Inc. - Dublin OH

International Classification:

C21D 7/06

US Classification:

72 53

Abstract:

A bend bar is available for use in a quality control test for testing for a consistency of residual stress effects in a particular material using a given a laser peening process. The bar is composed of the particular material to be tested and has a bar length and a bar thickness. The particular material has a characteristic maximum stress penetration depth for compressive residual stresses that can be formed in using the given laser peening process. The bar thickness is chosen so as to be at least twice the characteristic maximum stress penetration depth. The bar has a test surface that extends parallel to the bar length and perpendicular to the bar thickness. After forming a spot pattern on the test surface using the given laser peening process, the deflection generated in the bar due to the compressive residual stresses induced by laser peening can then be measured and used as a quality control measurement.