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公开(公告)号：US20180274052A1
公开(公告)日：2018-09-27
申请号：US15465116
申请日：2017-03-21
IPC分类号： C21D9/00 , C21D6/00 , C22C38/54 , C22C38/50 , C22C38/46 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , F16B19/08
CPC分类号： C21D9/0068 , C21D6/004 , C21D6/005 , C21D6/008 , C21D2211/008 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/46 , C22C38/50 , C22C38/54 , F16B19/086
摘要： Systems and methods for locally softening high strength steel are disclosed. One method may include heat treating one or more local regions of a steel component having a hardness of at least 450 HV to soften the local region(s) to a hardness of at most 250 HV. The heat treating may include heating only the local region(s) to a target temperature above an AC1 temperature of the component and below an AC3 temperature of the component. In another method, the heat treating may include heating only the local region(s) to a first target temperature above an AC3 temperature of the component, cooling the local region(s) to below an AC1 temperature of the component, and isothermally holding the local region(s) at a second target temperature below the AC1 temperature. The locally softened region(s) may allow for improved joining and/or trimming of the component.
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公开(公告)号：US20180001367A1
公开(公告)日：2018-01-04
申请号：US15198181
申请日：2016-06-30
CPC分类号： B21D22/022 , B21D47/01 , B21D53/88 , C21D1/673
摘要： A furnace assembly for hot-stamping vehicle components includes a support structure, a movable visor, a heat element, and a set of blocks. The support structure defines a cavity and an opening sized to receive a blank. The movable visor is mounted to the support structure and defines a first zone partially open to the cavity via the opening. The heat element is disposed within the cavity. Each of the blocks of the set of blocks is disposed on one side of the heat element to define a second zone and aligned with the opening to receive a vehicle component blank upon the blocks. The set of blocks and visor are arranged with one another such that portions of the blank are heated at different temperatures in the first zone and the second zone.
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公开(公告)号：US20170304884A1
公开(公告)日：2017-10-26
申请号：US15133904
申请日：2016-04-20
发明人： Raj SOHMSHETTY , Constantin CHIRIAC , S. George LUCKEY, JR. , Nia R. HARRISON , Peter A. FRIEDMAN
CPC分类号： B21D22/022 , B21D22/208 , C21D1/673 , C21D6/005 , C21D6/008 , C21D9/48 , C21D2211/001 , C21D2211/008 , C21D2221/00 , C22C38/002 , C22C38/02 , C22C38/04
摘要： A hot-stamping furnace includes a housing defining a heating chamber partitioned into compartments configured to have different temperatures. The heating chamber includes an opening that is at least partially covered by a door movably mounted on the housing. The door is configured to extend over only a portion of the opening when in a closed position. A detachable panel extends from an edge of the door such that the panel extends over a portion of the opening that the door does not extend over.
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