公开(公告)号：US06754954B1

公开(公告)日：2004-06-29

申请号：US10614852

申请日：2003-07-08

Applicant: David Michael Decker

Inventor： David Michael Decker

IPC: B23P1500

CPC classification number: B23H9/10 ,  B21K1/36 ,  B21K3/04 ,  B23P15/006 ,  F04D29/023 ,  F04D29/284 ,  F05D2230/25 ,  F05D2300/133 ,  F05D2300/174 ,  Y10T29/49243 ,  Y10T29/49316 ,  Y10T29/49995

Abstract: The difficulty of working with titanium has inhibited the adoption of titanium compressor wheels in automotive air boost devices. The invention provides an economical process for the manufacture of titanium compressor wheels. A hybrid process is disclosed, wherein a forging process is used to produce a near net shape pattern including filled in areas (10, 11) which must be subsequently machined or milled away to produce the net shape compressor wheel. Using the hybrid or two-step process, the technical complexity and time investment in each step is greatly reduced, flaws as associated with the casting technique are eliminated, the process allows itself to be fully automated, the dimensional accuracy of the final product is greater than with conventional techniques, and the strength of the compressor wheel is increased as compared to cast product.

Abstract translation: 使用钛的难度已经抑制了汽车空气增压装置中钛压缩机轮的采用。 本发明提供了用于制造钛压缩机轮的经济方法。 公开了一种混合方法，其中锻造工艺用于产生包括填充区域（10,11）的近净形状图案，该区域必须随后被加工或铣削以产生网状压缩机叶轮。 使用混合或两步法，可大大减少每一步骤的技术复杂性和时间投入，与铸造技术相关的缺陷被消除，该过程允许自身完全自动化，最终产品的尺寸精度更大 与传统技术相比，与铸造产品相比，压缩机叶轮的强度增加。

公开(公告)号：US06588485B1

公开(公告)日：2003-07-08

申请号：US10143150

申请日：2002-05-10

Applicant: David Michael Decker

Inventor： David Michael Decker

IPC: B22D1700

CPC classification number: B22C9/04 ,  B22C7/02 ,  F04D29/023 ,  F04D29/284 ,  F04D29/30 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2300/174

Abstract: Cost considerations have prevented the use of titanium compressor wheels (1) in automotive air boost devices. A hybrid process is disclosed, wherein a wax pattern used in the investment casting process is intentionally designed not to produce a final (net shape) compressor wheel, but rather, is designed to produce a near net shape pattern including filled in areas (10, 11) which must be subsequently machined or milled away to produce the desired non-pullable shape compressor wheel. Surprisingly, when forming a titanium compressor wheel using the hybrid or two-step process, the technical complexity of each step (pattern forming and machining) is substantially lower, distortion of the wax blades (4) during pattern casting is reduced, casting of titanium is simplified, the process allows itself to be fully automated, and the dimensional accuracy of the final product is greater than with conventional techniques.

Abstract translation: 成本考虑阻止了在汽车空气增压装置中使用钛压缩机轮（1）。 公开了一种混合方法，其中在熔模铸造工艺中使用的蜡图案有意设计成不产生最终（净形状）压缩机叶轮，而是被设计成产生近净形状图案，包括填充区域（10， 11），其必须随后被加工或铣削以产生期望的不可拉伸形状的压缩机叶轮。 令人惊奇的是，当使用混合或两步法形成钛压缩机轮时，每个步骤的技术复杂性（图案形成和加工）都显着降低，在图案铸造期间蜡叶片（4）的变形减少，钛的铸造 被简化，该过程允许其自身完全自动化，并且最终产品的尺寸精度比常规技术更大。