Patents by Inventor Rahul Vilas Kulkarni
Rahul Vilas Kulkarni 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: 11814713Abstract: Described herein are methods of processing heat treatable aluminum alloys using an accelerated aging step, along with aluminum alloy products prepared according to the methods. The methods of processing the heat treatable alloys described herein provide a more efficient method for producing aluminum alloy products having the desired strength and formability properties. For example, conventional methods of processing alloys can require 24 hours of aging. The methods described herein, however, substantially reduce the aging time, often requiring eight hours or less of aging time.Type: GrantFiled: November 11, 2019Date of Patent: November 14, 2023Assignee: Novelis Inc.Inventors: Cedric Wu, Rajeev G. Kamat, Yudie Yuan, David Leyvraz, Julie Richard, Rahul Vilas Kulkarni, Peter Lloyd Redmond, Yi Wang, Rajasekhar Talla, Rashmi Ranjan Mohanty, Tudor Piroteala
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Patent number: 11766846Abstract: Provided herein are new clad aluminum alloy products and methods of making these alloys. These alloy products possess a combination of strength and other key attributes, such as corrosion resistance, formability, and joining capabilities. The alloy products can be used in a variety of applications, including automotive, transportation, and electronics applications.Type: GrantFiled: June 15, 2020Date of Patent: September 26, 2023Assignee: Novelis Inc.Inventors: Rajeev G. Kamat, Hashem Mousavi-Anijdan, Rahul Vilas Kulkarni, Juergen Timm, Corrado Bassi, Robert Bruce Wagstaff, Guillaume Florey, Cyrille Bezencon, Samuel R. Wagstaff, David Leyvraz
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Publication number: 20220333229Abstract: Described herein are novel 7xxx series aluminum alloys. The alloys exhibit high strength. The alloys can be used in a variety of applications, including automotive, transportation, electronics, aerospace, and industrial applications. Also described herein are methods of making and processing the alloys. Further described herein are methods of producing a metal sheet, which include casting an aluminum alloy as described herein to form an ingot, homogenizing the ingot, hot rolling the ingot to produce a hot band, and cold rolling the hot band to a metal sheet of final gauge.Type: ApplicationFiled: July 1, 2022Publication date: October 20, 2022Applicant: Novelis Inc.Inventors: RAJEEV G. KAMAT, DHRUBA J. CHAKRABARTI, RASHMI RASHMI MOHANTY, RAHUL VILAS KULKARNI, DUANE E. BENDZINSKI, JUERGEN TIMM
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Patent number: 11421309Abstract: Described herein are novel 7xxx series aluminum alloys. The alloys exhibit high strength. The alloys can be used in a variety of applications, including automotive, transportation, electronics, aerospace, and industrial applications. Also described herein are methods of making and processing the alloys. Further described herein are methods of producing a metal sheet, which include casting an aluminum alloy as described herein to form an ingot, homogenizing the ingot, hot rolling the ingot to produce a hot band, and cold rolling the hot band to a metal sheet of final gauge.Type: GrantFiled: October 28, 2016Date of Patent: August 23, 2022Assignee: Novelis Inc.Inventors: Rajeev G. Kamat, Dhruba J. Chakrabarti, Rashmi Ranjan Mohanty, Rahul Vilas Kulkarni, Duane E. Bendzinski, Juergen Timm
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Publication number: 20200307160Abstract: Provided herein are new clad aluminum alloy products and methods of making these alloys. These alloy products possess a combination of strength and other key attributes, such as corrosion resistance, formability, and joining capabilities. The alloy products can be used in a variety of applications, including automotive, transportation, and electronics applications.Type: ApplicationFiled: June 15, 2020Publication date: October 1, 2020Applicant: Novelis Inc.Inventors: Rajeev G. Kamat, Hashem Mousavi-Anijdan, Rahul Vilas Kulkarni, Juergen Timm, Corrado Bassi, Robert Bruce Wagstaff, Guillaume Florey, Cyrille Bezencon, Samuel R. Wagstaff, David Leyvraz
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Patent number: 10730266Abstract: Provided herein are new clad aluminum alloy products and methods of making these alloys. These alloy products possess a combination of strength and other key attributes, such as corrosion resistance, formability, and joining capabilities. The alloy products can be used in a variety of applications, including automotive, transportation, and electronics applications.Type: GrantFiled: April 23, 2018Date of Patent: August 4, 2020Assignee: NOVELIS INC.Inventors: Rajeev G. Kamat, Hashem Mousavi-Anijdan, Rahul Vilas Kulkarni, Juergen Timm, Corrado Bassi, Robert Bruce Wagstaff, Guillaume Florey, Cyrille Bezencon, Samuel R. Wagstaff, David Leyvraz
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Publication number: 20200149141Abstract: Described herein are methods of processing heat treatable aluminum alloys using an accelerated aging step, along with aluminum alloy products prepared according to the methods. The methods of processing the heat treatable alloys described herein provide a more efficient method for producing aluminum alloy products having the desired strength and formability properties. For example, conventional methods of processing alloys can require 24 hours of aging. The methods described herein, however, substantially reduce the aging time, often requiring eight hours or less of aging time.Type: ApplicationFiled: November 11, 2019Publication date: May 14, 2020Applicant: Novelis Inc.Inventors: Cedric Wu, Rajeev G. Kamat, Yudie Yuan, David Leyvraz, Julie Richard, Rahul Vilas Kulkarni, Peter Lloyd Redmond, Yi Wang, Rajasekhar Talla, Rashmi Ranjan Mohanty, Tudor Piroteala
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Publication number: 20200082973Abstract: Described herein are anodized continuous coils containing a thin anodized film layer and methods for making and using the same. The anodized continuous coils include an aluminum alloy continuous coil, wherein a surface of the aluminum alloy continuous coil comprises a thin anodized film layer. The anodized continuous coils maintain the anodized film layer during deforming processes.Type: ApplicationFiled: September 10, 2019Publication date: March 12, 2020Applicant: NOVELIS INC.Inventors: RAHUL VILAS KULKARNI, CEDRIC WU, TODD SUMME, EMANUEL BECK, MICHELE EDITH BERNER, KURT SEKINGER, DAVID LEYVRAZ, THERESA ELIZABETH MACFARLANE
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Patent number: 10508328Abstract: Systems and methods of hot forming a metal blank include receiving the metal blank at a heater and positioning the blank adjacent a magnetic rotor of the heater. The systems and methods also include heating the metal blank through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal blank such that the metal blank is heated.Type: GrantFiled: September 27, 2017Date of Patent: December 17, 2019Assignee: NOVELIS INC.Inventors: Julio Malpica, Cedric Wu, Rahul Vilas Kulkarni, Rodger Brown, Duane E. Bendzinski
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Patent number: 10472708Abstract: A method of hot forming an aluminum alloy component may include heating the aluminum alloy component in a heating furnace to a solutionizing temperature, cooling the aluminum alloy component to a desired forming temperature, deforming the aluminum alloy component into a desired shape in a forming device while the aluminum alloy component is at the desired forming temperature, maintaining a constant temperature during the deformation of the aluminum alloy component, and quenching the aluminum alloy component to a low temperature below a solvus temperature.Type: GrantFiled: September 27, 2016Date of Patent: November 12, 2019Assignee: NOVELIS INC.Inventors: Rashmi Ranjan Mohanty, Duane E. Bendzinski, Rahul Vilas Kulkarni
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Publication number: 20190169726Abstract: A method of hot forming an aluminum alloy component may include heating the aluminum alloy component in a heating furnace to a solutionizing temperature, cooling the aluminum alloy component to a desired forming temperature, deforming the aluminum alloy component into a desired shape in a forming device while the aluminum alloy component is at the desired forming temperature, maintaining a constant temperature during the deformation of the aluminum alloy component, and quenching the aluminum alloy component to a low temperature below a solvus temperature.Type: ApplicationFiled: February 4, 2019Publication date: June 6, 2019Applicant: Novelis Inc.Inventors: Rashmi Ranjan Mohanty, Duane E. Bendzinski, Rahul Vilas Kulkarni
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Publication number: 20190055637Abstract: The present disclosure generally provides aluminum alloy products having selectively recrystallized microstructure at one or more surfaces of the product. The disclosure also provides articles of manufacture made from such products, and methods of making such products, such as through casting and rolling. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, and industrial applications.Type: ApplicationFiled: August 20, 2018Publication date: February 21, 2019Applicant: Novelis Inc.Inventors: Cedric Wu, Rajeev G. Kamat, Yi Wang, Samuel Robert Wagstaff, Rashmi Ranjan Mohanty, Rahul Vilas Kulkarni, Duane E. Bendzinski, Yudie Yuan
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Publication number: 20180304584Abstract: Provided herein are new clad aluminum alloy products and methods of making these alloys. These alloy products possess a combination of strength and other key attributes, such as corrosion resistance, formability, and joining capabilities. The alloy products can be used in a variety of applications, including automotive, transportation, and electronics applications.Type: ApplicationFiled: April 23, 2018Publication date: October 25, 2018Applicant: Novelis Inc.Inventors: Rajeev G. Kamat, Hashem Mousavi-Anijdan, Rahul Vilas Kulkarni, Juergen Timm, Corrado Bassi, Robert Bruce Wagstaff, Guillaume Florey, Cyrille Bezencon, Samuel R. Wagstaff, David Leyvraz
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Publication number: 20180202031Abstract: Disclosed herein are methods of processing 7xxx aluminum alloys using a rapid pre-aging step, along with alloys prepared according to the methods. The aluminum alloy products described herein have high strength when subjected to a rapid pre-aging step, as described above, and subsequent thermal treatment, such as paint baking or coating. The alloys prepared and processed according to the methods described herein can be used, for example, in automotive, transportation, electronics, and industrial applications.Type: ApplicationFiled: January 16, 2018Publication date: July 19, 2018Applicant: Novelis Inc.Inventors: Cedric Wu, Rahul Vilas Kulkarni, Rajeev G. Kamat, Rashmi Ranjan Mohanty, Rajasekhar Talla
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Publication number: 20180085810Abstract: Systems and methods of hot forming a metal blank include receiving the metal blank at a heater and positioning the blank adjacent a magnetic rotor of the heater. The systems and methods also include heating the metal blank through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal blank such that the metal blank is heated.Type: ApplicationFiled: September 27, 2017Publication date: March 29, 2018Applicant: Novelis Inc.Inventors: Julio Malpica, Cedric Wu, Rahul Vilas Kulkarni, Rodger Brown, Duane E. Bendzinski
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Publication number: 20170121802Abstract: Described herein are novel 7xxx series aluminum alloys. The alloys exhibit high strength. The alloys can be used in a variety of applications, including automotive, transportation, electronics, aerospace, and industrial applications. Also described herein are methods of making and processing the alloys. Further described herein are methods of producing a metal sheet, which include casting an aluminum alloy as described herein to form an ingot, homogenizing the ingot, hot rolling the ingot to produce a hot band, and cold rolling the hot band to a metal sheet of final gauge.Type: ApplicationFiled: October 28, 2016Publication date: May 4, 2017Applicant: Novelis Inc.Inventors: RAJEEV G. KAMAT, DHRUBA J. CHAKRABARTI, RASHMI RANJAN MOHANTY, RAHUL VILAS KULKARNI, DUANE E. BENDZINSKI, JUERGEN TIMM
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Publication number: 20170101705Abstract: A method of hot forming an aluminum alloy component may include heating the aluminum alloy component in a heating furnace to a solutionizing temperature, cooling the aluminum alloy component to a desired forming temperature, deforming the aluminum alloy component into a desired shape in a forming device while the aluminum alloy component is at the desired forming temperature, maintaining a constant temperature during the deformation of the aluminum alloy component, and quenching the aluminum alloy component to a low temperature below a solvus temperature.Type: ApplicationFiled: September 27, 2016Publication date: April 13, 2017Applicant: Novelis Inc.Inventors: Rashmi Ranjan Mohanty, Duane E. Bendzinski, Rahul Vilas Kulkarni