Patents by Inventor Fernando Martinez Diez
Fernando Martinez Diez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10669602Abstract: A manufacturing process includes depositing a clad layer having a thickness greater than about 0.5 mm (0.02 in) on a surface of the component by hardfacing, and creating a heat affected zone directly below the clad layer due to the depositing. The heat affected zone may be a region of the component where a lowest hardness is lower than a base hardness of the component below the heat affected zone. The method may also include heat treating the component after the deposition such that the lowest hardness in the heat affected zone is restored to within about 15% of the base hardness of the component.Type: GrantFiled: May 27, 2016Date of Patent: June 2, 2020Assignee: Caterpillar Inc.Inventors: Daniel Sordelet, Robert L. Meyer, Fernando Martinez Diez
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Patent number: 10167529Abstract: A hardfacing process includes depositing a clad layer having a thickness greater than about 1 mm (0.04 in) on a surface of the component by arc welding, and creating a heat affected zone directly below the clad layer due to the depositing. The heat affected zone may be a region of the component where a lowest hardness is more than 40% lower than a base hardness of the component below the heat affected zone. The method may also include heat treating the component after the deposition such that the lowest hardness in the heat affected zone is restored to within about 15% of the base hardness of the component.Type: GrantFiled: September 28, 2015Date of Patent: January 1, 2019Assignee: Caterpillar Inc.Inventors: Robert L. Meyer, Fernando Martinez Diez
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Publication number: 20170088911Abstract: A manufacturing process includes depositing a clad layer having a thickness greater than about 0.5 mm (0.02 in) on a surface of the component by hardfacing, and creating a heat affected zone directly below the clad layer due to the depositing. The heat affected zone may be a region of the component where a lowest hardness is lower than a base hardness of the component below the heat affected zone. The method may also include heat treating the component after the deposition such that the lowest hardness in the heat affected zone is restored to within about 15% of the base hardness of the component.Type: ApplicationFiled: May 27, 2016Publication date: March 30, 2017Applicant: CATERPILLAR INC.Inventors: Daniel Sordelet, Robert L. Meyer, Fernando Martinez Diez
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Publication number: 20170016323Abstract: A method for attaching an insert to a substrate includes: rubbing the insert against the substrate; forming a heat-affected zone in the substrate; forming plasticized substrate material from friction resulting from the rubbing; moving the insert to a first depth in the heat-affected zone in the substrate; moving the insert to a second depth in the heat-affected zone in the substrate where the first depth is deeper than the second depth; flowing the plasticized material against the insert; and releasing the insert.Type: ApplicationFiled: July 15, 2015Publication date: January 19, 2017Applicant: Caterpillar Inc.Inventors: Matthew Behmlander, Timothy Thorson, Fernando Martinez Diez
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Publication number: 20160017454Abstract: A hardfacing process includes depositing a clad layer having a thickness greater than about 1 mm (0.04 in) on a surface of the component by arc welding, and creating a heat affected zone directly below the clad layer due to the depositing. The heat affected zone may be a region of the component where a lowest hardness is more than 40% lower than a base hardness of the component below the heat affected zone. The method may also include heat treating the component after the deposition such that the lowest hardness in the heat affected zone is restored to within about 15% of the base hardness of the component.Type: ApplicationFiled: September 28, 2015Publication date: January 21, 2016Applicant: Caterpillar Inc.Inventors: Robert L. Meyer, Fernando Martinez Diez
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Patent number: 9174293Abstract: A hardfacing process includes depositing a clad layer having a thickness greater than about 1 mm (0.04 in) on a surface of the component by arc welding, and creating a heat affected zone directly below the clad layer due to the depositing. The heat affected zone may be a region of the component where a lowest hardness is more than 40% lower than a base hardness of the component below the heat affected zone. The method may also include heat treating the component after the deposition such that the lowest hardness in the heat affected zone is restored to within about 15% of the base hardness of the component.Type: GrantFiled: December 16, 2010Date of Patent: November 3, 2015Assignee: Caterpillar Inc.Inventors: Robert Lee Meyer, Fernando Martinez Diez
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Patent number: 8322591Abstract: A system for automated assembly and welding is disclosed. The system includes a pallet for receiving incoming workpieces; a workpiece holder having a plurality of electromagnets; a handling robot configured to transport incoming workpieces from the pallet to the workpiece holder; and a controller in communication with the workpiece holder and the handling robot. The controller is configured to determine an orientation of a workpiece positioned on the workpiece holder, and to selectively adjust an activation state of one or more electromagnets of the workpiece holder based upon the orientation of the workpiece. A method of assembling and welding workpieces is also disclosed.Type: GrantFiled: February 27, 2012Date of Patent: December 4, 2012Assignee: Caterpillar Inc.Inventors: Fernando Martinez Diez, Keith Alan Herman, Huijun Wang, Howard W. Ludewig, Mathew Mark Robinson
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Publication number: 20120152911Abstract: A system for automated assembly and welding is disclosed. The system includes a pallet for receiving incoming workpieces; a workpiece holder having a plurality of electromagnets; a handling robot configured to transport incoming workpieces from the pallet to the workpiece holder; and a controller in communication with the workpiece holder and the handling robot. The controller is configured to determine an orientation of a workpiece positioned on the workpiece holder, and to selectively adjust an activation state of one or more electromagnets of the workpiece holder based upon the orientation of the workpiece. A method of assembling and welding workpieces is also disclosed.Type: ApplicationFiled: February 27, 2012Publication date: June 21, 2012Inventors: Fernando Martinez Diez, Keith Alan Herman, Huijun Wang, Howard W. Ludewig, Mathew Mark Robinson
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Publication number: 20120156520Abstract: A hardfacing process includes depositing a clad layer having a thickness greater than about 1 mm (0.04 in) on a surface of the component by arc welding, and creating a heat affected zone directly below the clad layer due to the depositing. The heat affected zone may be a region of the component where a lowest hardness is more than 40% lower than a base hardness of the component below the heat affected zone. The method may also include heat treating the component after the deposition such that the lowest hardness in the heat affected zone is restored to within about 15% of the base hardness of the component.Type: ApplicationFiled: December 16, 2010Publication date: June 21, 2012Inventors: ROBERT LEE MEYER, Fernando Martinez Diez
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Publication number: 20120107644Abstract: An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part.Type: ApplicationFiled: November 8, 2011Publication date: May 3, 2012Applicant: CATERPILLAR, INC.Inventors: Pingshun Zhao, Howard W. Ludewig, Tao Hong, Fernando Martinez Diez, Michael Lynn Johnson, Kandrap Siddharthbai Patel, Zhaolin Hu, Steven R. Thompson
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Patent number: 8157155Abstract: A system for automated assembly and welding is disclosed. The system includes a pallet for receiving incoming workpieces; a workpiece holder having a plurality of electromagnets; a handling robot configured to transport incoming workpieces from the pallet to the workpiece holder; and a controller in communication with the workpiece holder and the handling robot. The controller is configured to determine an orientation of a workpiece positioned on the workpiece holder, and to selectively adjust an activation state of one or more electromagnets of the workpiece holder based upon the orientation of the workpiece. A method of assembling and welding workpieces is also disclosed.Type: GrantFiled: December 5, 2008Date of Patent: April 17, 2012Assignee: Caterpillar Inc.Inventors: Fernando Martinez Diez, Keith Alan Herman, Huijun Wang, Howard W. Ludewig, Mathew Mark Robinson
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Patent number: 8075714Abstract: An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part.Type: GrantFiled: January 22, 2008Date of Patent: December 13, 2011Assignee: Caterpillar Inc.Inventors: Pingshun Zhao, Howard W. Ludewig, Tao Hong, Fernando Martinez Diez, Michael Lynn Johnson, Kandarp Siddharthbai Patel, Zhaolin Hu, Steven R. Thompson
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Publication number: 20100078412Abstract: A welding method is disclosed. The welding method includes making a weld via laser-arc hybrid welding. The welding method also includes using a fiber laser source in the laser-arc hybrid welding.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Inventors: Fernando Martinez Diez, Huijun Wang, Howard W. Ludewig, Keith M. Egland
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Publication number: 20090249606Abstract: A system for automated assembly and welding is disclosed. The system includes a pallet for receiving incoming workpieces; a workpiece holder having a plurality of electromagnets; a handling robot configured to transport incoming workpieces from the pallet to the workpiece holder; and a controller in communication with the workpiece holder and the handling robot. The controller is configured to determine an orientation of a workpiece positioned on the workpiece holder, and to selectively adjust an activation state of one or more electromagnets of the workpiece holder based upon the orientation of the workpiece. A method of assembling and welding workpieces is also disclosed.Type: ApplicationFiled: December 5, 2008Publication date: October 8, 2009Inventors: Fernando Martinez Diez, Keith Alan Herman, Huijun Wang, Howard W. Ludewig, Mathew Mark Robinson
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Publication number: 20090251252Abstract: The present disclosure is directed to a work holding system. The work holding system may include a plurality of electromagnets connected to a support structure and configured to fix a magnetic workpiece to the support structure. Further the work holding system may include a controller configured to selectively adjust an activation state of one or more electromagnets based upon a proximity of work being done on the magnetic workpiece.Type: ApplicationFiled: April 3, 2008Publication date: October 8, 2009Inventors: Huijun Wang, Fernando Martinez Diez, Keith Alan Herman
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Publication number: 20090183804Abstract: An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part.Type: ApplicationFiled: January 22, 2008Publication date: July 23, 2009Applicant: CATERPILLAR INC.Inventors: Pingshun Zhao, Howard W. Ludewig, Tao Hong, Fernando Martinez Diez, Michael Lynn Johnson, Kandrap Siddharthbai Patel, Zhaolin Hu, Steven R. Thompson
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Patent number: 7525067Abstract: A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient a second welding wire in a second welding wire orientation that is non-coplanar and divergent with respect to the first welding wire orientation. A method of welding includes moving a welding torch with respect to a workpiece joint to be welded. During moving the welding torch, a first welding wire is fed through a first welding wire guide defining a first welding wire orientation and a second welding wire is fed through a second welding wire guide defining a second welding wire orientation that is divergent and non-coplanar with respect to the first welding wire orientation.Type: GrantFiled: June 8, 2006Date of Patent: April 28, 2009Assignee: Caterpillar Inc.Inventors: Fernando Martinez Diez, Kevin S. Stump, Howard W. Ludewig, Alan L. Kilty, Matthew M. Robinson, Keith M. Egland
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Publication number: 20070284351Abstract: A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient a second welding wire in a second welding wire orientation that is non-coplanar and divergent with respect to the first welding wire orientation. A method of welding includes moving a welding torch with respect to a workpiece joint to be welded. During moving the welding torch, a first welding wire is fed through a first welding wire guide defining a first welding wire orientation and a second welding wire is fed through a second welding wire guide defining a second welding wire orientation that is divergent and non-coplanar with respect to the first welding wire orientation.Type: ApplicationFiled: June 8, 2006Publication date: December 13, 2007Inventors: Fernando Martinez Diez, Kevin S. Stump, Howard W. Ludewig, Alan L. Kilty, Matthew M. Robinson, Keith M. Egland