Method and apparatus for production of a cast component
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B22D-041/00
출원번호
UP-0894221
(2007-08-20)
등록번호
US-7779890
(2010-09-13)
발명자
/ 주소
Frasier, Donald J.
Schlienger, M. Eric
Vessely, Patrick A.
출원인 / 주소
Rolls-Royce Corporation
대리인 / 주소
Krieg DeVault LLP
인용정보
피인용 횟수 :
8인용 특허 :
258
초록
A system for producing cast components from molten metal. One form of the present invention includes a system for the precision pouring of molten metal within a casting mold. The precision pouring system is driven by a pressure differential.
대표청구항▼
What is claimed is: 1. A system, comprising: a vacuum furnace; a crucible positioned within said vacuum furnace and having a discharge hole; a heater positioned within said vacuum furnace for melting the metal material within said crucible; a metallic starter seed; a dispenser located within said c
What is claimed is: 1. A system, comprising: a vacuum furnace; a crucible positioned within said vacuum furnace and having a discharge hole; a heater positioned within said vacuum furnace for melting the metal material within said crucible; a metallic starter seed; a dispenser located within said crucible and around said discharge hole, said dispenser has an outer portion with at least one entrance for the passage of molten metal from said crucible and an exit spaced from said at least one entrance for the passage of molten metal to an inner reservoir, and wherein said inner reservoir receives molten metal from said outer portion until said inner reservoir reaches a full state, and at said full state the flow of molten metal to said inner reservoir is stopped and the molten metal within said inner reservoir is discharged through said discharge hole; an integral free form fabricated ceramic shell having a first opening for receiving the molten metal discharged through said discharge hole and a second opening for receiving said starter seed, said ceramic shell positioned within and connected with a mold container; and a heat transfer pathway mechanically connected with said starter seed for the removal of heat from said starter seed, said heat transfer pathway remains mechanically connected with said starter seed as the molten metal within said ceramic shell is directionally solidified. 2. The system of claim 1, which further includes a heater operatively coupled with said starter seed to selectively heat said starter seed. 3. The system of claim 1, wherein said ceramic shell has a thin outer wall, and which further includes a plurality of supporting members within said mold container and abutting said thin outer wall, wherein said plurality of supporting members reinforcing said ceramic shell. 4. The system of claim 3, wherein said ceramic shell and mold container define a casting mold capable of withstanding casting pressures up to about twenty-four inches of nickel. 5. The system of claim 1, which further includes a nozzle coupled to said crucible and in fluid communication with said discharge hole, and wherein said nozzle is positionable in close proximity with said first opening of the ceramic shell. 6. The system of claim 5, wherein said nozzle and said ceramic shell define a structure having a substantially closed passageway therebetween during the passage of molten metal from said dispenser to said ceramic shell. 7. The system of claim 1, wherein the discharge of molten metal from said discharge hole is controlled by a pressure differential. 8. The system of claim 1, wherein said heat transfer passageway includes at least one member that mechanically grips said starter seed, said at least one member is conductively connected with said starter seed. 9. The system of claim 8, wherein said at least one member defines a pair of members that mechanically grip said starter seed. 10. The system of claim 1 wherein said starter seed has a surface adapted for receiving molten metal thereon, and which further includes a means for locating said surface at a predetermined location within said ceramic shell. 11. The system of claim 1: wherein said ceramic shell and said mold container define a casting mold, said ceramic shell has a thin outer wall, and which further includes a plurality of ceramic members positioned within said mold container and abutting an outer surface of said thin outer wall, and wherein said plurality of supporting members mechanically reinforce said ceramic shell; which further includes a nozzle coupled to said crucible and disposed in fluid communication with said discharge hole, and wherein said nozzle is positionable in close proximity with said first opening of the ceramic shell; and wherein the discharge of molten metal from said discharge hole is controlled by a pressure differential; wherein said heat transfer pathway is formed in a pair of conductive members that mechanically grip said starter seed; and wherein said starter seed has a surface adapted for receiving molten metal thereon, and which further includes at least one locating member contacting said starter seed to position said surface at a predetermined location within said ceramic shell. 12. The system of claim 11, wherein said ceramic shell is formed in a process including the photopolymerization of a ceramic filled resin. 13. The system of claim 1, wherein said ceramic shell is formed by a stereolithography process. 14. A system comprising: a vacuum furnace; a crucible positioned within said vacuum furnace and having a discharge hole; a heater positioned within said vacuum furnace for melting the metal material within said crucible; a metallic starter seed; a dispenser located within said crucible and around said discharge hole, said dispenser has an outer portion with at least one entrance for the passage of molten metal from said crucible and an exit spaced from said at least one entrance for the passage of molten metal to an inner reservoir, and wherein said inner reservoir receives molten metal from said outer portion until said inner reservoir reaches a full state, and at said full state the flow of molten metal to said inner reservoir is stopped and the molten metal within said inner reservoir is discharged through said discharge hole; an integral free form fabricated ceramic shell having a first opening for receiving the molten metal discharged through said discharge hole and a second opening for receiving said starter seed; and a heat transfer pathway mechanically connected with said starter seed for the removal of heat from said starter seed, said heat transfer pathway remains mechanically connected with said starter seed as the molten metal within said ceramic shell is directionally solidified. 15. The system of claim 14, which further includes a heater operatively coupled with said starter seed to selectively heat said starter seed. 16. The system of claim 14, wherein said ceramic shell has a thin outer wall. 17. The system of claim 14, which further includes a nozzle coupled to said crucible and in fluid communication with said discharge hole, and wherein said nozzle is positionable in close proximity with said first opening of the ceramic shell. 18. The system of claim 17, wherein said nozzle and said ceramic shell define a structure having a substantially closed passageway therebetween during the passage of molten metal from said dispenser to said ceramic shell. 19. The system of claim 14, wherein the discharge of molten metal from said discharge hole is controlled by a pressure differential. 20. The system of claim 14, wherein said heat transfer passageway includes at least one member that mechanically grips said starter seed, said at least one member is conductively connected with said starter seed. 21. The system of claim 20, wherein said at least one member defines a pair of members that mechanically grip said starter seed. 22. The system of claim 14, wherein said starter seed has a surface adapted for receiving molten metal thereon, and which further includes a means for locating said surface at a predetermined location within said ceramic shell. 23. The system of claim 14: wherein said ceramic shell has a thin outer wall; which further includes a nozzle coupled to said crucible and disposed in fluid communication with said discharge hole, and wherein said nozzle is positionable in close proximity with said first opening of the ceramic shell; wherein the discharge of molten metal from said discharge hole is controlled by a pressure differential; wherein said heat transfer pathway is formed in a pair of conductive members that mechanically grip said starter seed; and wherein said starter seed has a surface adapted for receiving molten metal thereon, and which further includes at least one locating member contacting said starter seed to position said surface at a predetermined location within said ceramic shell.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (258)
Klug Frederic J. (Amsterdam NY) Pasco Wayne D. (Ballston Lake NY) Prochazka Svante (Ballston Lake NY), Alumina core having a high degree of porosity and crushability characteristics.
Spence Stuart T. (S. Pasadena CA) Almquist Thomas (San Gabriel CA) Tarnoff Harry L. (Van Nuys CA), Apparatus and method for calibrating and normalizing a stereolithographic apparatus.
Spence Stuart T. (South Pasadena CA) Almquist Thomas A. (San Gabriel CA) Tarnoff Harry L. (Van Nuys CA) Juran Warren (Sylmar CA), Apparatus and method for calibrating and normalizing a stereolithographic apparatus.
Spence Stuart T. (South Pasadena CA) Tarnoff Harry L. (Van Nuys CA), Apparatus and method for correcting for drift in production of objects by stereolithography.
Hull Charles W. (Santa Clarita CA) Cohen Adam L. (Sherman Oaks CA) Spence Stuart L. (S. Pasadena CA) Lewis Charles W. (Sherman Oaks CA), Apparatus and related method for forming a substantially flat stereolithographic working surface.
Hull Charles W. (Santa Clarita) Jacobs Paul F. (La Crescenta) Schmidt Kris A. (Granada Hills) Smalley Dennis R. (Baldwin Park) Vinson Wayne A. (Valencia CA), Apparatus for building three-dimensional objects with sheets.
Heller Timmy B. (Attleboro MA) Hill Ray M. (Smithfield RI) Greenhalgh Michael R. (Taunton MA) Saggal Abdalla F. (Pawtucket RI), Apparatus for making a solid three-dimensional article from a liquid medium.
Heller Timmy B. (Attleboro MA) Hill Ray M. (Smithfield RI) Greenhalgh Michael R. (Taunton MA) Saggal Abdalla F. (Pawtucket RI), Applicator device and method for dispensing a liquid medium in a laser modeling machine.
DeAngelis Francesco E. (Austin TX) Davison Michael R. (Lake Forest CA) Leigh David K. (Austin TX), Automated method and apparatus for calibration of laser scanning in a selective laser sintering apparatus.
Snead David E. (Canyon Country CA) Smalley Dennis R. (Baldwin Park CA) Cohen Adam L. (Los Angeles CA) Allison Joseph W. (Valencia CA) Vorgitch Thomas J. (Simi Valley CA) Chen Thomas P. (Saugus CA), Boolean layer comparison slice.
Salkeld Richard W. (South Windsor CT) Anderson Neal P. (Broad Brook CT) Giamei Anthony F. (Middletown CT), Control of seed melt-back during directional solidification of metals.
Benz Mark Gilbert ; Raymond Edward Lee ; Kissinger Robert Donald ; Huron Eric Scott ; Blankenship ; Jr. Charles Philip ; Henry Michael Francis, Grain size control in nickel base superalloys.
Schmidt Wayde ; Bak Joseph V. ; White Ronald D. ; Wamorkar Umesh R., Helical conformal channels for solid freeform fabrication and tooling applications.
Murphy Edward J. (Des Plaines IL) Ansel Robert E. (Hoffman Estates IL) Krajewski John J. (Wheeling IL), Investment casting utilizing patterns produced by stereolithography.
Schmiedeknecht Dean L. (Whitehall MI) Straszheim Mark J. (North Muskegon MI) Thompson Dennis J. (Whitehall MI) Rauguth Brad L. (Whiteland IN), Investment casting with improved filling.
Hauser Jean-Michel (Meudon FRX) Pautonnier Fernand (Paris FRX) Rabinovitch Maurice (Chatillon FRX), Method and an apparatus for manufacturing metallic composite material bars by unidirectional solidification.
Evans ; Jr. Herbert E. (Valencia CA) Ertley Ernest W. (Saugus CA) Hull Charles W. (Santa Clarita CA) Leyden Richard N. (Topanga Canyon CA), Method and apparatus for cleaning stereolithographically produced objects.
Monks James H. (1 Guisborough Road Nunthorpe ; Middlesborough ; Cleveland TS7 0LE GB2), Method and apparatus for controlling the flow of molten metals.
Weiss Lee E. (6558 Darlington Rd. Pittsburgh PA 15217) Prinz Fritz R. (5801 Northumberland St. Pittsburgh PA 15217) Gursoz E. Levent (4232 Saline St. Pittsburgh PA 15217), Method and apparatus for fabrication of three-dimensional articles by thermal spray deposition.
Prinz Fritz B. (5801 Northumberland St. Pittsburgh PA 15217) Weiss Lee E. (6558 Darlington Rd. Pittsburgh PA 15217), Method and apparatus for fabrication of three-dimensional metal articles by weld deposition.
O\Connor Kurt Francis (Carmel IN) Hoff James Paul (Greenfield IN) Frasier Donald James (Greenwood IN) Peeler Ralph Edmund (Reelsville IN) Mueller-Largent Heidi (Indianapolis IN) Trees Floyd Freeman (, Method and apparatus for producing cast structures.
Hull Charles W. (Santa Clarita CA) Spence Stuart T. (S. Pasadena CA) Albert David J. (Aptos CA) Smalley Dennis R. (Baldwin Park CA) Harlow Richard A. (Marina Del Rey CA) Stinebaugh Phil (Sunnyvale CA, Method and apparatus for production of high resolution three-dimensional objects by stereolithography.
Hull Charles W. (Santa Clarita CA) Spence Stuart T. (So. Pasadena CA) Albert David J. (Aptos CA) Smalley Dennis R. (Baldwin Park CA) Harlow Richard A. (Marina Del Rey CA) Stinebaugh Phil (Sunnyvale C, Method and apparatus for production of high resolution three-dimensional objects by stereolithography.
Hull Charles W. (Santa Clarita CA) Modrek Borzo (Azusa CA) Parker Brent (Newhall CA) Freed Raymond S. (Northridge CA) Almquist Thomas (San Gabriel CA) Spence Stuart T. (So. Pasadena CA) Albert David , Method and apparatus for production of three-dimensional objects by stereolithography.
Vinson Wayne A. (Valencia CA) Allison Joseph W. (Valencia CA) Jacobs Paul F. (La Crescenta CA) Smalley Dennis R. (Baldwin Park CA), Method and apparatus for stereolithographic curl balancing.
Michelle D. Guertin ; Charles W. Hull ; Hop D. Nguyen, Method and apparatus for stereolithographically forming three dimensional objects with reduced distortion.
Fukuoka Hiromi (Kitakyushu JPX) Asano Keisuke (Kitakyushu JPX) Ide Hideo (Kitakyushu JPX), Method and apparatus for supplying molten metal in the manufacture of amorphous metal ribbons.
Miller Evan R. (Flanders NJ) Burd Lamar (Andover NJ) Carozza Eugene J. (Succasunna NJ) Grunstra Robert E. (North Muskegon MI), Method and mold for casting articles having a predetermined crystalline orientation.
Fink David J. (Shaker Heights OH) Ward Thomas J. (Columbus OH) Preston Joel C. (Grove City OH), Method for free-formation of a free-standing, three-dimensional body.
Jackson Melvin Robert ; Bewlay Bernard Patrick ; Dalpe Dennis Joseph ; Demo Wayne Alan ; Ferrigno Stephen Joseph, Method for providing an extension on an end of an article.
Corderman Reed R. (Wyoming OH) McAllister Kevin G. (Fairfield OH) McAndrews Brian J. (Milford NH) Locker John W. (Sterling MA), Method for providing an extension on an end of an article having internal passageways.
Almquist Thomas A. (San Gabriel CA) Modrek Borzo (Montebello CA) Jacobs Paul F. (La Crescenta CA) Lewis Charles W. (Sherman Oaks CA) Lewis Mark A. (Valencia CA) Liran Abraham (Northridge CA), Method of and apparatus for making a three-dimensional product by stereolithography.
Almquist Thomas A. (San Gabriel CA) Modrek Borzo (Montebello CA) Jacobs Paul F. (La Crescenta CA) Lewis Charles W. (Sherman Oaks CA) Lewis Mark A. (Valencia CA) Liran Abraham (Northridge CA) Cohen Ad, Method of and apparatus for measuring and controlling fluid level in stereolithography.
Hull Charles W. (Santa Clarita CA) Spence Stuart T. (So. Pasadena CA) Lewis Charles W. (Van Nuys CA) Vinson Wayne A. (Valencia CA) Freed Raymond S. (Northridge CA) Smalley Dennis R. (Baldwin Park CA), Method of and apparatus for production of three-dimensional objects by stereolithography with reduced curl.
Higginbotham Gordon J. S. (Darley Abbey GB2) Marjoram John R. (Coxbench GB2) Horrocks Frederick J. (Spondon GB2), Method of and mould for making a cast single crystal.
Hull Charles W. (Santa Clarita CA) Jacobs Paul F. (La Crescenta CA) Schmidt Kris A. (Granada Hills CA) Smalley Dennis R. (Baldwin Park CA) Vinson Wayne A. (Valencia CA), Method of building three dimensional objects with sheets.
Ouchi Yutaka (Tsuchiura JPX) Sugino Akio (Tsuchiura JPX) Sugaya Kazuo (Tsuchiura JPX) Kimizima Kazuo (Tsuchiura JPX), Method of continuously casting a metal and an apparatus for continuously casting the same.
Ouchi Yutaka (Tsuchiura JPX) Sugino Akio (Tsuchiura JPX) Sugaya Kazuo (Tsuchiura JPX) Kimizima Kazuo (Tsuchiura JPX), Method of continuously casting a metal and an apparatus for continuously casting the same.
Brinegar John R. (North Muskegon MI) Chamberlain Keith R. (Medina OH) Vresics James J. (Hackettstown NJ) DePue William J. (Stillwater NJ), Method of forming a fine-grained equiaxed casting.
Murphy Edward J. (Des Plaines IL) Ansel Robert E. (Hoffman Estates IL) Krajewski John J. (Wheeling IL), Method of forming a three-dimensional object by stereolithography and composition therefore.
Allison Joseph W. (Valencia CA) Richter Jan (Los Angeles CA) Childers Craig M. (Santa Clarita CA) Smalley Dennis R. (Baldwin Park CA) Hull Charles W. (Santa Clarita CA) Jacobs Paul F. (La Crescenta C, Method of making a three-dimensional object by stereolithography.
Allison Joseph W. (Valencia CA) Richter Jan (Los Angeles CA) Childers Craig M. (Santa Clarita CA) Smalley Dennis R. (Baldwin Park CA) Hull Charles W. (Santa Clarita CA) Jacobs Paul F. (La Crescenta C, Method of making a three-dimensional object by stereolithography.
Allison Joseph W. (Valencia CA) Smalley Dennis R. (Baldwin Park CA) Hull Charles W. (Santa Clarita CA) Jacobs Paul F. (La Crescenta CA), Method of making a three-dimensional object by stereolithography.
Hull Charles W. (Arcadia CA) Spence Stuart T. (South Pasadena CA) Albert David J. (Saratoga CA) Smalley Dennis R. (Baldwin Park CA) Harlow Richard A. (Malibu CA) Steinbaugh Phil (Mountain View CA) Ta, Methods and apparatus for production of three-dimensional objects by stereolithography.
Hull Charles W. (Santa Clarita CA) Leyden Richard N. (Topanga Canyon CA) Sekowski Marek (Sherman Oaks CA), Methods of coating stereolithographic parts.
Monte Louis H. (Minerva OH) Jeyarajan Arunachalam (Euclid OH) Graham Lawrence D. (Chagrin Falls OH), Mold and method for casting a single crystal metal article.
Monte Louis H. (Minerva OH) Jeyarajan Arunachalam (Euclid OH) Graham Lawrence D. (Chagrin Falls OH), Mold and method for casting a single crystal metal article.
Emanuel M. Sachs ; Won B. Bang ; Michael J. Cima, Molds for casting with customized internal structure to collapse upon cooling and to facilitate control of heat transfer.
Bourell David L. (Austin TX) Marcus Harris L. (Austin TX) Barlow Joel W. (Austin TX) Beaman Joseph J. (Austin TX) Deckard Carl R. (Austin TX), Multiple material systems for selective beam sintering.
Sato Kan-ichi (Hirakata JPX) Yamanishi Akio (Hirakata JPX) Higashino Takashi (Hirakata JPX), Pattern for producing a mold and method for manufacture of the pattern.
van Tao Nguyen (Cruseilles FRX) Bellmann Gnter (Commugny CHX), Photo setting composition for coating substrates with an abrasion-resistant transparent or translucent film.
Chandross Edwin Arthur (Berkeley Heights NJ) Tomlinson ; III Walter John (Holmdel NJ) Weber Heinz Paul (Middletown NJ), Photopolymerization process and related devices.
Gottschalk Peter (Centerville OH) Neckers Douglas C. (Perrysburg OH) Schuster Gary B. (Champaign IL) Adair Paul C. (Springboro OH) Pappas S. Peter (Fargo ND), Photosensitive materials containing ionic dye compound as initiators.
Matsubayashi Nobuyuki (Hiroshima-ken JPX) Takeshita Toru (Hiroshima-ken JPX), Pressurizing control method and pressurizing control system for low-pressure casting.
Wortmann Jrgen (Weichs DEX) Wege Robert (Munich DEX) Staub Fritz (Seuzach CHX) Walser Bruno (Schottiken CHX), Process and apparatus for production of single-crystal turbine blades.
Popovic\ Dragan (Tucson AZ) Halloran John W. (Ann Arbor MI) Hilmas Gregory E. (Saline MI) Brady Guy Allen (Ann Arbor MI) Somers Scott (East Lansing MI) Barda Andrew (Battle Creek MI) Zywicki Gregory , Process for preparing textured ceramic composites.
Chartier Thierry Jean Emile,FRX ; David Vincent Louis Christian,FRX ; Derrien Mischael Fran.cedilla.ois Louis,FRX ; Eberschveiller Eric Jean,FRX ; Truelle Franck Edmond Maurice,FRX ; Valente Isabelle, Process for the manufacture of thin ceramic cores for use in precision casting.
Vorgitch Thomas J. (Simi Valley CA) Bradford Raymond A. (Los Angeles CA) Floyd Grady O. (Newhall CA) Tarnoff Harry L. (Van Nuys CA) Vinson Wayne A. (Valencia CA) Little Frank F. (Lakeview CA) Harlow , Rapid and accurate production of stereolighographic parts.
Vinson Wayne A. (Valencia CA) Little Frank F. (Lakeview CA) Schwarzinger Wolfgang (Moorpark CA) Lewis Mark A. (Valencia CA) Uziel Yehoram (Northridge CA) Pitlak Robert T. (Westlake Village CA) Spence, Rapid and accurate production of stereolithographic parts.
Almquist Thomas A. (San Gabriel CA) Hull Charles W. (Santa Clarita CA) Modrek Borzo (Montebello CA) Jacobs Paul F. (La Crescenta CA) Lewis Charles W. (Sherman Oaks CA) Cohen Adam L. (Los Angeles CA) , Recoating of stereolithographic layers.
Almquist Thomas A. ; Hull Charles W. ; Modrek Borzo ; Jacobs Paul F. ; Lewis Charles W. ; Cohen Adam L. ; Spence Stuart T. ; Nguyen Hop D. ; Lewis Mark A. ; Liran Abraham ; Smalley Dennis R., Recoating of stereolithographic layers.
Almquist Thomas A. ; Hull Charles W. ; Modrek Borzo ; Jacobs Paul F. ; Lewis Charles W. ; Cohen Adam L. ; Spence Stuart T. ; Nguyen Hop D. ; Lewis Mark A. ; Liran Abraham ; Smalley Dennis R., Recoating stereolithographic layers.
McAlea Kevin P. ; Forderhase Paul F. ; Ganninger Mark E. ; Kunig Frederic W. ; Magistro Angelo J., Selective laser sintering with composite plastic material.
O\Connor Kurt F. (Carmel IN) Hoff James P. (Greenwood IN) Frasier Donald J. (Greenwood IN) Peeler Ralph E. (Reelsville IN) Mueller-Largent Heidi (Indianapolis IN) Trees Floyd F. (Bloomington IN) Whet, Single-cast, high-temperature thin wall gas turbine component.
O\Connor Kurt F. (Carmel IN) Hoff James P. (Greenfield IN) Frasier Donald J. (Greenwood IN) Peeler Ralph E. (Reelsville IN) Mueller-Largent Heidi (Indianapolis IN) Trees Floyd F. (Bloomington IN) Whe, Single-cast, high-temperature, thin wall structures and methods of making the same.
Hull Charles W. (Santa Clarita CA) Spence Stuart T. (So. Pasadena CA) Lewis Charles W. (Van Nuys CA) Vinson Wayne (Valenica CA) Freed Raymond S. (Northridge CA) Smalley Dennis R. (Baldwin Park CA), Stereolithographic curl reduction.
Leyden Richard N. (Topanga CA) Almouist Thomas A. (San Gabriel CA) Lewis Mark A. (Valencia CA) Nguyen Hop D. (Little Rock CA), Stereolithography method and apparatus.
Rossmann Axel (Karlsfeld DEX) Smarsly Wilfried (Grasbrunn DEX), Structural component made of metal or ceramic having a solid outer shell and a porous core and its method of manufacture.
Smalley Dennis R. (Baldwin Park CA) Nguyen Hop D. (Little Rock CA) Schmidt Kris A. (Granada Hills CA) Evans Herbert E. (Valencia CA) Freed Ray S. (Northridge CA) Jacobs Paul J. (La Crescenta CA), Surface resolution in three-dimensional objects by inclusion of thin fill layers.
Quadir Tariq (Columbia MD) Mirle Srinivas K. (Ellicott City MD) Hallock John S. (Ellicott City MD), Three dimensional sintered inorganic structures using photopolymerization.
Sachs Emanuel M. (Somerville MA) Haggerty John S. (Lincoln MA) Cima Michael J. (Lexington MA) Williams Paul A. (Concord MA), Three-dimensional printing techniques.
Jacobs Paul F. (La Crescenta CA) Thompson J. Scot (Northridge CA) Nguyen Hop D. (Little Rock CA) Smalley Dennis R. (Baldwin Park CA), Vibrationally enhanced stereolithographic recoating.
Jacobs Paul F. (La Crescenta CA) Thompson J. Scot (Northridge CA) Nguyen Hop D. (Little Rock CA) Smalley Dennis R. (Baldwin Park CA), Vibrationally enhanced stereolithographic recoating.
Thomas, Jeffrey G.; Ownby, Clayton Arthur; Cook, III, Grant O.; Olsen, Garrett T.; Voglewede, Daniel Brendan, Mold assemblies used for fabricating downhole tools.
Ownby, Clayton A.; Cook, III, Grant O.; Olsen, Garrett T.; Thomas, Jeffrey G., Steam-blocking cooling systems that help facilitate directional solidification.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.