公开(公告)号：WO2016113552A1

公开(公告)日：2016-07-21

申请号：PCT/GB2016/050063

申请日：2016-01-12

Applicant: CUMMINS LTD

Inventor： RHODES, Katie ,  WINWOOD, Sean

IPC: B23P15/00 ,  F04D29/28 ,  B24C1/10 ,  C22C1/02 ,  C22F1/10

CPC classification number: B23P15/006 ,  B22D21/025 ,  B22D25/02 ,  B24C1/10 ,  C21D7/06 ,  C21D2211/001 ,  C22C1/023 ,  C22C19/05 ,  C22C38/02 ,  C22C38/04 ,  C22F1/10 ,  F01D5/048 ,  F05D2220/40 ,  F05D2230/21 ,  F05D2230/42 ,  F05D2230/90 ,  F05D2300/175

Abstract: A method for manufacturing a turbine wheel comprising casting the turbine wheel from an austenitic nickel-chromium-based superalloy, subjecting the cast turbine wheel to hot isostatic pressing and then subjecting a surface of the hot isostatically pressed turbine wheel to plastic deformation, wherein said hot isostatic pressing is effected at a pressure of 98 to 200 MPa and a temperature of 1160 to 1220 °C for a time period of 225 to 300 minutes. There is further described a hot isostatically pressed cast turbine wheel manufactured from an austenitic nickel-chromium-based superalloy, the turbine wheel having a plastically deformed surface; and a turbocharger incorporating such a turbine wheel.

Abstract translation: 一种用于制造涡轮机叶轮的方法，包括从奥氏体镍铬基超级合金铸造涡轮机叶轮，对铸造涡轮机轮进行热等静压，然后对热等压涡轮机叶轮的表面进行塑性变形，其中所述热 等压压制在98〜200MPa的压力和1160〜1220℃的温度下进行225〜300分钟的时间。 还描述了由奥氏体镍铬基超级合金制造的热等静压铸造涡轮机，涡轮机轮具有塑性变形的表面; 以及包括这种涡轮机叶轮的涡轮增压器。