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1.发明公开INVESTMENT CASTING UTILIZING FLEXIBLE WAX PATTERN TOOL FOR SUPPORTING A CERAMIC CORE ALONG ITS LENGTH DURING WAX INJECTION 审中-公开具有灵活的蜡型工具精密铸造期间注射WAX陶瓷芯纵向延伸支持
公开(公告)号：EP2991787A1
公开(公告)日：2016-03-09
申请号：EP14728738.7
申请日：2014-04-30
发明人： MERRILL, Gary, B. , JAMES, Allister, William , SHEEHAN, Kevin, C. , HENEVELD, Benjamin, E. , FRASER, Iain, Alasdair
摘要： An investment casting process wherein the wax pattern tool (42) is flexible to provide compliant support for an enclosed ceramic core (10) and to facilitate removal of the tool from the cast wax pattern (52) even when the cast shape would otherwise require multiple pull planes. Positioning pins (106) may extend from the flexible tool to make compliant contact against the core during the wax injection step. The pins may cooperate with a pedestal (128) formed on the core to support the core along multiple axes during wax injection, thereby allowing a higher wax injection pressure without damage to the core.
摘要翻译： 上的熔模铸造过程中的多个worin蜡型工具（42）是柔性的，以在封闭的陶瓷芯（10），用于提供标准的支持，并便于去除从铸造蜡模（52）的工具的即使在铸造形状否则将需要 拉飞机。 定位销（106）可以从柔性工具延伸以使蜡注入步骤期间抵靠芯兼容接触。 销可以与形成在芯支持蜡注入期间沿多个轴芯，从而允许在不向核心损坏较高蜡注射压力的基座（128）配合。
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公开(公告)号：EP2991787B1
公开(公告)日：2019-05-29
申请号：EP14728738.7
申请日：2014-04-30
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公开(公告)号：EP2509726A2
公开(公告)日：2012-10-17
申请号：EP11710560.1
申请日：2011-02-08
发明人： MERRILL, Gary, B. , JAMES, Allister, W. , BURNS, Andrew, J. , SHEEHAN, Kevin, C. , HENEVELD, Benjamin, E. , FRASER, Iain, A.
摘要： An investment casting process for a hollow component such as a gas turbine blade utilizing a ceramic core (10) that is cast in a flexible mold (24) using a low pressure, vibration assisted casting process. The flexible mold is cast from a master tool (14) machined from soft metal using a relatively low precision machining process, with relatively higher precision surfaces being defined by a precision formed insert (22) incorporated into the master tool. A plurality of identical flexible molds may be formed from a single master tool in order to permit the production of ceramic cores at a desired rate with a desired degree of part-to-part precision.
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公开(公告)号：EP2509726B1
公开(公告)日：2019-11-06
申请号：EP11710560.1
申请日：2011-02-08
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