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公开(公告)号:US20150083284A1
公开(公告)日:2015-03-26
申请号:US14475654
申请日:2014-09-03
Applicant: ROLLS-ROYCE PLC
Inventor: Martin John RAWSON , John Harold BOSWELL , Martin TUFFS , George William WHITEHURST , Paul Owen HILL
IPC: C21D8/00 , C21D1/06 , C22C38/60 , C22C38/46 , C22C38/00 , C22C38/24 , C22C38/22 , C22C38/04 , C22C38/02 , C21D1/18 , C22C38/44
CPC classification number: C21D8/005 , B21D22/14 , C21D1/06 , C21D1/18 , C21D1/25 , C21D1/30 , C21D6/002 , C21D8/10 , C21D9/08 , C21D9/28 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/44 , C22C38/46 , C22C38/60
Abstract: A method of forming a shaped article. The method comprises providing a pre-form 40 comprising a chromium molybdenum vanadium steel alloy, heat treating the pre-form to obtain a surface hardness of between 420 and 480 according to the Vickers hardness test, and, subsequent to the heat treating step, flow forming the pre-form 40 to shape the pre-form.
Abstract translation: 一种形成成型制品的方法。 该方法包括提供包含铬钼钒钢合金的预成型体40,根据维氏硬度试验热预处理以获得420至480的表面硬度,并且在热处理步骤之后,流动 形成预成型件40以使预成型件成型。