Method and arrangement for controlling stresses based on...

Metal founding – Process – Disposition of a gaseous or projected particulate molten...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C164S004100, C427S455000, C427S008000

Reexamination Certificate

active

06923241

ABSTRACT:
Method and apparatus for controlling stresses in a spray form process makes use of one dimensional modeling in which characteristics of a geometrical point are quantified by iterative detection, such as taking a surface temperature reading using a pyrometer. This temperature information is used in a one dimensional simulation to predict characteristics for a column from the point down through a spray-formed article to an interface with a substrate. The modeling technique can used with a plurality of geometrical points to model the whole article, and the one dimensional simulation can be integrated with robotic spray-forming controls to minimize residual stress in the spray-formed article.

REFERENCES:
patent: 4481237 (1984-11-01), Bosshart et al.
patent: 5424101 (1995-06-01), Atkins et al.
patent: 5430376 (1995-07-01), Viertl
patent: 5645884 (1997-07-01), Harlow et al.
patent: 5658506 (1997-08-01), White et al.
patent: 5731030 (1998-03-01), Friese et al.
patent: 5843232 (1998-12-01), Savkar et al.
patent: 5947179 (1999-09-01), Kinane et al.
patent: 5952056 (1999-09-01), Jordan et al.
patent: 6179039 (2001-01-01), Grinberg et al.
Sprayform Tools and Dies Limited (STD), Video Transcript, publication date at least as early as Sep. 1, 2000.
Radip Tooling—Changing the Face of Manufacturing, Compact Disc Digital Data, dated Oct. 12, 2000, trt: 10:50.
Merle L. Thorpe; and Joseph W. Minge, Spray Metal Composite Tooling, 26thAnnual National SAMPE (Society For The Advancement Of Material And Process Engineering) Symposium And Exhibition, Apr. 28-30, 1981, pp. 374-382, Figures 1-13 and Table I and II.
Inventor Allen Roche, Co-pending U.S. Appl. No. 09/683,159, entitled “Method and Arranngement For Affecting Time, Temperature And Transformation Dependent Stress Relief In Sprayform Techniques” and filed Nov. 27, 2001.
K-H Busse; Arc Spraying Of Corded Wires; Thermal Spraying; Jun. 1989; 19-28.
Steeper et al.; A Taguchi Experimental Design Study Of Twin-Wire Electric Arc Sprayed Aluminum Coatings; Proceedings of the International Thermal Spray Conference & Exposition; May 28-Jun. 6, 1992; 427-432; Orlando, FL.
Akira Ohmori; Thermal Spraying Current Status And Future Trends; Proceedings of the 14thInternational Thermal Spray Conference; May 22-26 1995; 1197-1202; Kobe, Japan.
Crane et al.; Relationships Between Process Variables, Structure And Mechanical Properties of Arc Sprayed Steel Coatings; Surface Engineering Conference; 1985; 103-118.
Newbery et al.; The Electric Arc Spray Manufacture of Rapid Production Tooling: A Case Study; Proceedings of the 15thInternational Thermal Spray Conference; May 26-29 1998; 1223-1228; Nice, France.
Zurecki et al.; Electric Arc Deposition of Carbon Steel Coatings with Improved Mechanical Properties; Journal of Thermal Spray Technology; Dec. 1997; vol. 6(4); 417-421.
Harris et al.; Influence of Heat Transfer on the Structure and Properties of Arc Sprayed Low Alloy Steels; Surface engineering conference; 1985; 78-94.
Fussell et al.; A Sprayed Steel Tool for Permanent Mold Casting of Aluminum; SAE Technical Paper Series; Apr. 22-26 1991; 1-7; Dayton, OH.
Volenik et al.; Properties of Alloy Steel Coatings Oxidized Dut=ring Plasma Spraying; Materials Science and Engineering; 1997; A234-236; 493-496.
Weiss et al.; Arc-Sprayed Steel-Faced Tooling; Journal of Thermal Spray Technology; Sep. 1994; vol. 3(3); 275-281.
Smith et al.; An Investigatio of the Effects of Dropletimpact Angle in Thermal Spray Deposition; Proceedings of the 7thNational Thermal Spray Conference; Jun. 20-24 1994; 603-608; Boston, MA.
Kowalsky et al.; Diagnostic Behavior of the Wire-Arc-Plasma Spray Process; Proceedings of the International Thermal Spray Conference & Exposition; May 28-Jun. 5, 1992; 337-342; Orlando, FL.
Murakami et al.; Effect of Temperature Rise of Sprayed Deposits of an Fe-2.19wt.%C-0.68wt.%Si Alloy During Thermal Spraying on the Structures and the Mechanical Properties; Materials Science and Engineering; 1994; A174; 85-94.
Prinz, Shaping By Deposition; Carnegie Mellon University.
Steffens; Metallurgical Changes In The Arc Spraying Of Steel; British Welding Journal; Oct. 1966; 597-605.
Bredendick-Kamper et al.; AES Investigation Of Thermally Sprayed Al2O3Coatings On Steel; Fresenius Journal Anal Chem; 1991; 341; 346-348.
Crane et al.; Relationships Between Process Variables, Structure and Mechanical Properties Of Arc Sprayed Steel Coatings; First International Conference On Surface Engineering; Jun. 25-28 1985; 103-118; Brighton, UK.
Kim et al.; Heat Flow In Multi-Pass Arc Spraying Process; Surface And Coatings Technology; 1989; 398-408.
Cronjager et al.; Investigationd About The Machinability Of Arc-Sprayed Steel Coatings; Proceedings Of The Eleventh International Thermal Spraying Conference; Sep. 8-12 1986863-872; Montreal, Canada.
Steffans et al.; The Sonarc Process: Combining The Advantages Of Arc And HVOF Spraying; Journal Of Thermal Spray Technology; Dec. 1994; 398-403; vol. 3(4).
Weiss et al.; Rapid Prototyping Of Tools; Carnegie Mellon University; Oct. 1989; 1-23.
Bhargava et al.; Automated Ejectability Analysis And Parting Surface Generation For Mold Tool Design; Carnegie Mellon University; May 1991; 1-29.
Fussell et al.; Controlled Microstructure Of Arc Sprayed Metal Shells; Carnegie Mellon University; May 1991; 1-26.
Clyens; Rapid Tooling Manufactured By Spray Tool Steel Directly Onto Stereolithography Models.
He et al., Net Shape Simulation And Control; Proceedings Of The 7thNational Thermal Spray Conference; Jun. 20-24 1994; 415-419; Boston, MA.
Gill et al.; Monitoring Of Residual Stress Generation During Thermal Spraying By Curvature Measurements; Proceedings Of The 7thNational Thermal Spray Conference; Jun. 20-24 1994; 581-592; Boston, MA.
Rasteger et al.; On The Optimal Motion Planning For Solid Freeform Fabrication By Thermal SprayingProceedings Of The 7thNational Thermal Spray Conference; Jun. 20-24 1994; 463-483; Boston, MA.
Harris et al.; Influence Of Wire Composition And Other Process Variables On The Internal Stress Of Arc Sprayed Steel Coatings; DVS; 80; 245-249.
Greving et al.; Effects Of Coating Thickness And Residual Stresses On Bond Strength Of C633-79 Thermal Spray Coating Test Specimens; Proceedings of the 7thNational Thermal Spray Conference; Jun. 20-24 1994; 639-644; Boston, MA.
Knight et al.; Residual Stresses In Thermally Sprayed Coatings; Proceedings of the 1993 National Thermal Spray Conference; Jun. 7-11 1993; 607612; Anaheim, CA.
Neiser et al.; Use Of A Computer Model To Assist In VPS Parameter Development; Proceedings of the 1993 National Thermal Spray Conference; Jun. 7-11 1993; 61-66; Anaheim, CA.
Einerson et al.; Intelligent Control Strategies For The Plasma Spray Process; Proceedings of the 1993 National Thermal Spray Conference; Jun. 7-11 1993; 205-211; Anaheim, CA.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and arrangement for controlling stresses based on... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and arrangement for controlling stresses based on..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and arrangement for controlling stresses based on... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3457388

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.