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公开(公告)号：US12121962B2
公开(公告)日：2024-10-22
申请号：US17935769
申请日：2022-09-27
发明人： Liang Wang , Qigui Wang , Tiruttani Munikamal , Shasha Vali Shaik , Suresh Kumar K , Steven L. Burkholder , Thomas W. Gustafson
CPC分类号： B22D30/00 , B22D21/007 , B22D25/02 , B22D41/04
摘要： A system and method of manufacturing an aluminum fuel cell cradle includes providing a negative cast mold having cavities to form the cradle and providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism includes a plurality of primary risers connected to and in fluid communication with cavities. The method further includes melting a first metallic material to define a molten metallic material, and moving the mold to a vertical casting orientation about a rotational axis, while feeding molten metallic material through the runner to the cavities, and cooling the molten metallic material to define a solidified metallic material. A second solidification time in the risers is greater than a first solidification time in the mold such that shrinkage of the solidified metallic material occurs in the risers away from the mold.
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公开(公告)号：US11597023B2
公开(公告)日：2023-03-07
申请号：US17181438
申请日：2021-02-22
IPC分类号： B23G5/20
摘要： A hybrid threading tap includes a reamer portion and a thread cutting portion having a plurality of cutting teeth. The thread cutting portion is arranged with the reamer portion along the longitudinal axis. The reamer portion is configured to be advanced within a hole of a workpiece to plastically deform and expand the hole to an expanded hole and provide the expanded hole with a zone of residual compressive stress. The plurality of cutting teeth is configured to cut a threading into the expanded hole within the zone.
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公开(公告)号：US20220097125A1
公开(公告)日：2022-03-31
申请号：US17034530
申请日：2020-09-28
发明人： Lokesh Choudhary , Tiruttani Munikamal , Qigui Wang , Liang Wang
摘要： A hybrid core for manufacturing a cast component, the hybrid core including a sand core portion having an exterior shape configured to define an interior feature of the cast component. The hybrid core also includes a metal chill element embedded within the sand core portion. The metal chill element is configured to locally absorb heat energy from the cast component during cooling of the cast component and solidification thereof. The metal chill element is constructed and arranged within the sand core portion to be removed during shake out from the cast component subsequent to the solidification thereof. A system and a method for manufacturing a cast component using such a hybrid core are also envisioned.
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公开(公告)号：US12128476B2
公开(公告)日：2024-10-29
申请号：US18158725
申请日：2023-01-24
发明人： Qigui Wang , Liang Wang , Tiruttani Munikamal , Shasha Vali Shaik , Suresh Kumar K , Steven L Burkholder , Thomas W. Gustafson
CPC分类号： B22D25/04 , B22D21/007 , B22D35/04
摘要： A system and method of manufacturing an aluminum fuel cell cradle includes providing a negative cast mold having cavities to form the cradle having a length greater than a width to define a longitudinal axis and providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism includes primary risers connected to and in fluid communication with the cavities. The method further includes melting a first metallic material to define a molten metallic material, moving the mold to a vertical orientation about the longitudinal axis while feeding molten metallic material through the runner to the cavities, and moving the cast mold to a horizontal orientation. A second solidification time in the risers is greater than a first solidification time in the mold such that shrinkage of the solidified metallic material occurs in the risers away from the mold.
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公开(公告)号：US11465221B2
公开(公告)日：2022-10-11
申请号：US17134957
申请日：2020-12-28
摘要： A hybrid threading tool defines a longitudinal axis and includes a cutting portion with a plurality of cutting teeth. The plurality of cutting teeth are configured to cut a first threading into a workpiece. The hybrid threading tool also defines a forming portion that is attached to the cutting portion and that is arranged therewith along the longitudinal axis. The forming portion includes a plurality of forming teeth configured to plastically deform the first threading into a second threading for the workpiece.
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公开(公告)号：US20220203468A1
公开(公告)日：2022-06-30
申请号：US17134986
申请日：2020-12-28
发明人： Lokesh Choudhary , Qigui Wang , Tiruttani Munikamal , David A. Wulbrecht , Gregory Melekian , Anil K. Sachdev
IPC分类号： B23G1/18
摘要： A method of manufacturing a threaded hole in a workpiece includes providing the workpiece having a region with a hole. The method also includes cutting a threading for the hole. Furthermore, the method includes, independent of cutting the threading, densifying the region proximate the hole to reduce material porosity in the region.
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公开(公告)号：US20240100592A1
公开(公告)日：2024-03-28
申请号：US17935769
申请日：2022-09-27
发明人： Liang Wang , Qigui Wang , Tiruttani Munikamal , Shasha Vali Shaik , Suresh Kumar K , Steven L. Burkholder , Thomas W. Gustafson
CPC分类号： B22D30/00 , B22D21/007 , B22D25/02 , B22D41/04
摘要： A system and method of manufacturing an aluminum fuel cell cradle are provided. The method comprises providing a negative cast mold having cavities to form the cradle, and comprises providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism comprises a plurality of primary risers connected to and in fluid communication with cavities. The method further comprises melting a first metallic material to define a molten metallic material, and comprises moving the mold to a vertical casting orientation about a rotational axis, while feeding molten metallic material through the runner to the cavities. The method further comprises cooling the molten metallic material to define a solidified metallic material. A second solidification time in the risers is greater than a first solidification time in the mold such that shrinkage of the solidified metallic material occurs in the risers away from the mold.
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公开(公告)号：US20240058860A1
公开(公告)日：2024-02-22
申请号：US17820683
申请日：2022-08-18
发明人： Lokesh Choudhary , Qigui Wang , Tiruttani Munikamal , Steven L. Burkholder , Thomas W. Gustafson , Dale A. Gerard
摘要： A hybrid chill with enhanced heat transfer for casting of a sand cast aluminum engine block of a vehicle is provided. The hybrid chill comprises a base comprising an outer wall having a first side and a second side. Each of the first and second sides extends from a first longitudinal end to an opposite second longitudinal end. The outer wall is closed to define a hollow portion. The base further comprises a heat transfer fluid in a liquid phase disposed in the hollow portion. The heat transfer fluid has a boiling point of between 320° C. and 400° C. at 1 bar for enhanced heat transfer during casting. The chill further comprises a plurality of crankcase members. Each member is disposed on the first side. Each member is spaced apart from a respective adjacent member defining an open recess.
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公开(公告)号：US20220241847A1
公开(公告)日：2022-08-04
申请号：US17163718
申请日：2021-02-01
发明人： Tiruttani Munikamal , Bala Krishna Sela , Qigui Wang , Scott A. Kavanagh , Guy Celli , Lokesh Choudhary
摘要： A mold package for forming a cast device such as an engine block is described. The mold package includes a profiled chill and a mold core assembly that is disposed on the profiled chill. The mold core assembly defines a plurality of bulkheads of the engine block. The profiled chill includes a first chill portion having a second chill portion and a plurality of third chill portions arranged thereon, wherein the second chill portion is a semicylindrical element. The third chill portions are arranged to be adjacent to the plurality of bulkheads of the engine block.
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公开(公告)号：US20220203469A1
公开(公告)日：2022-06-30
申请号：US17134957
申请日：2020-12-28
摘要： A hybrid threading tool defines a longitudinal axis and includes a cutting portion with a plurality of cutting teeth. The plurality of cutting teeth are configured to cut a first threading into a workpiece. The hybrid threading tool also defines a forming portion that is attached to the cutting portion and that is arranged therewith along the longitudinal axis. The forming portion includes a plurality of forming teeth configured to plastically deform the first threading into a second threading for the workpiece.
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