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公开(公告)号：US20150239038A1
公开(公告)日：2015-08-27
申请号：US14644914
申请日：2015-03-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Jun YAOKAWA , Yasushi IWATA , Yoshio SUGIYAMA , Hiroaki IWAHORI , Norihiro AMANO , Noriyuki UENO , Takehito KOBAYASHI
IPC: B22D11/01 , B22D27/04 , B22D11/041
CPC classification number: B22D11/01 , B22D11/041 , B22D11/05 , B22D11/145 , B22D27/045
Abstract: A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area (P) provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films (F) generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal (MS) led out along a set passage (L1) depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step.
Abstract translation: 根据本发明的自由铸造方法包括：引出步骤，用于从设置在供给源中的引出区域（P）引出熔融金属，例如， 熔融金属的表面水平，通过在外表面上产生的表面膜（F）临时保持熔融金属;以及形成步骤，用于通过固化沿着固定通道引出的保留的熔融金属（MS）而获得成形体 L1），其取决于所需的铸造形状，其中保留的熔融金属在通过在保持的熔融金属的无限制的根部之间的位置处施加外力而形成为期望的铸造形状之后固化， 熔融金属和在形成步骤中被定义为保留的熔融金属和成形体之间的边界的凝固界面。
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公开(公告)号：US20220290281A1
公开(公告)日：2022-09-15
申请号：US17650682
申请日：2022-02-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Chihiro ASAI , Takehito KOBAYASHI , Hajime KAWABATA
Abstract: A method of manufacturing an aluminum alloy forged material from a mixture containing an aluminum scrap, an aluminum virgin metal, and an additive element includes the following steps: a heating and melting step of heating and melting the mixture, a forging step of forging the mixture after heating and melting, and an aging treatment step of performing aging treatment on a material after the forging step under a condition that an aging temperature and an aging time are as follows: (aging temperature, aging time)=within a range of a region surrounded by (185, 4), (185, 7), (200, 1), and (200, −2/25x+8).
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公开(公告)号：US20210180167A1
公开(公告)日：2021-06-17
申请号：US16950056
申请日：2020-11-17
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kazuhiro SUZUKI , Takehito KOBAYASHI , Masayuki ISOGAWA , Katsuya YOSHIDA , Chihiro ASAI , Masahiro YAMADA
Abstract: An object of the present disclosure is to provide a method for manufacturing an aluminum alloy plastically-processed article, capable of preventing a burning crack from occurring due to processing heat generated during plasticity processing while maintaining a solution-treatment temperature of an aluminum alloy material for ensuring a mechanical strength thereof. A method for manufacturing an aluminum alloy plastically-processed article, includes a step of performing a solution treatment for an aluminum alloy material by heating and maintaining the aluminum alloy material at a solution-treatment temperature, a step of performing plasticity processing for the aluminum alloy material subjected to the solution treatment, and steps of cooling the plastically-processed aluminum alloy material at a time at which the step of the plasticity processing is completed, and aging the cooled aluminum alloy material. The method further includes pre-plasticity-processing cooling step of cooling the aluminum alloy material subjected to the solution treatment.
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