公开(公告)号：US20120067101A1

公开(公告)日：2012-03-22

申请号：US13231361

申请日：2011-09-13

Applicant: Felix TURLEY ,  Dan ROTH-FAGARASEANU ,  Kim GROSSMANN

Inventor： Felix TURLEY ,  Dan ROTH-FAGARASEANU ,  Kim GROSSMANN

IPC: B21J13/02 ,  B21K29/00 ,  B22D25/06 ,  C21D9/00 ,  C22F1/04

CPC classification number: B21J1/06 ,  B21K5/20 ,  B21K29/00

Abstract: A forging tool for precision forging of components of intermetallic or high-temperature stable phases with high yield stresses and shapeable at temperatures up to 1400° C. is made of graphite with a low-melting metal or a low-melting metal alloy infiltrated into its open-pored cavities, where metal carbides are created by heat treatment and form with the graphite a two-phase material hardened by subsequent quenching. The tool features high strength thanks to the yield stress increasing as the temperature increases at forging temperatures up to 1400° C., and is oxidation-resistant. It is electrically conductive, and has a low heat capacity, so that rapid inductive heating of the tool involving only low energy expenditure, short forging cycles and an inexpensive isothermic shaping process are possible. It has good lubrication properties, low wear and low manufacturing costs.

Abstract translation: 用于精密锻造金属间化合物或高温稳定相组分的锻造工具，具有高屈服应力，并且在高达1400℃的温度下可成型，由具有低熔点金属或低熔点金属合金的石墨浸入其中 开孔，其中通过热处理产生金属碳化物，并与石墨形成通过随后的淬火硬化的两相材料。 由于在锻造温度高达1400℃时温度升高，屈服应力增加，该工具具有高强度，并且是抗氧化的。 它是导电的并且具有低热容量，使得仅涉及低能量消耗，短锻造循环和廉价等温成型工艺的工具的快速感应加热是可能的。 它具有良好的润滑性能，低磨损和低制造成本。

公开(公告)号：US20100140230A1

公开(公告)日：2010-06-10

申请号：US12629447

申请日：2009-12-02

Applicant: Karl SCHREIBER ,  Kim GROSSMANN

Inventor： Karl SCHREIBER ,  Kim GROSSMANN

IPC: B23K15/00 ,  B23K31/02

CPC classification number: B23K15/002 ,  B23K15/0093 ,  B23K15/04 ,  B23K26/034 ,  B23K26/28 ,  B23K2101/001 ,  B23K2101/06 ,  B23P15/006 ,  C21D1/30 ,  C21D9/50 ,  C21D9/505 ,  C21D11/00 ,  C21D2221/00 ,  F01D5/063 ,  F05D2230/233

Abstract: With a method for manufacturing welded rotors for a turbine, especially a gas-turbine engine, in which two or more rotor disks are joined to each other by conventional welding processes using welds extending radially to the rotor axis and the weld zone is subsequently thermally treated at a certain temperature to relieve residual tensile stresses by relaxation, the weld is set to a significantly lower non-relaxatory temperature level than the heat-affected zone adjoining the weld so that, as a result of the high temperature gradient, a residual compressive stress or at least a substantially reduced residual tensile stress is impressed on the weld. Compared to conventionally heat treated and welded rotors, improved strength properties in the weld zone and an increased service life are obtained as a result of the reduced tensile stresses.

Abstract translation: 使用用于制造用于涡轮机的焊接转子的方法，特别是燃气涡轮发动机，其中两个或更多个转子盘通过使用径向延伸到转子轴线的焊接的常规焊接方法彼此接合，并且随后对焊接区域进行热处理 在一定温度下通过松弛来缓解残余拉伸应力，焊缝被设定为比邻接焊缝的热影响区域显着降低的非松弛温度水平，使得由于高温梯度，残余压应力 或至少大大减小的残余拉伸应力施加在焊缝上。 与传统的热处理和焊接转子相比，由于拉伸应力降低，获得了焊接区域的改进的强度特性和延长的使用寿命。