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1.发明授权Method of refurbishing cast gas turbine engine components and refurbished component 失效翻新燃气涡轮发动机部件和翻新部件的方法
公开(公告)号：US4878953A
公开(公告)日：1989-11-07
申请号：US143513
申请日：1988-01-13
CPC分类号： B23P6/007 , B23K35/304 , B23K9/04 , C23C26/02 , F01D5/005 , H05H1/42 , Y10S148/903 , Y10T29/49318
摘要： The refurbishing process permits an overlay to be formed on a casting to repair cracks, distortions and the like as well as to build up undersized sections. During refurbishing, a plasma arc is established under an electric current of less than 30 amps to form a shallow pool of molten metal on a casting. Powdered metal is delivered slightly above the molten pool and, subsequently, the melted powder and molten pool solidify to an overlay having a high integrity, cast structure which is metallurgically bonded to the casting with minimal dilution.
摘要翻译： 翻新过程允许在铸件上形成覆盖层以修复裂纹，变形等，以及建立尺寸过小的部分。 在翻新期间，在小于30安培的电流下建立等离子体电弧，以在铸件上形成浅的熔融金属池。 粉末状金属稍微在熔池上方输送，随后，熔融的粉末和熔池固化成具有高完整性的铸造结构的铸造结构，其以最小的稀释度与铸件冶金结合。
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公开(公告)号：US06585795B2
公开(公告)日：2003-07-01
申请号：US09923050
申请日：2001-08-06
申请人： Ira L. Friedman , Richard Phillips
发明人： Ira L. Friedman , Richard Phillips
IPC分类号： B22F312
CPC分类号： B22F1/0014 , B22F2998/10 , B22F2999/00 , B22F3/02 , B22F3/1021 , B22F2003/1042
摘要： The method of compacting agglomerated powder comprises the steps of receiving a mass of agglomerated powder of random sizes; separating the mass into at least three distinct range of sizes including a fine range, a medium range and a coarse range; and thereafter compacting the agglomerated powder of each of the ranges into green briquettes, each of which is characterized in having a self-supporting structure to permit handling for a subsequent sintering operation to form a bonded compacted mass.
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3.发明授权Process of fabricating a cutting edge on a tool and a cutting tool made thereby 失效在刀具上制造切削刃的工艺和由此制成的切削工具
公开(公告)号：US4864094A
公开(公告)日：1989-09-05
申请号：US143589
申请日：1988-01-13
CPC分类号： B23K31/025 , B23K35/327 , B23K9/04 , C23C30/005 , E21B10/46
摘要： A cutting tool is provided with a fabricated cutting edge which is applied using a low heat plasma transferred arc and powdered metal. The heat affected zone between the applied edge and the substrate is maintained at a minimum with low dilution and penetration of the applied material relative to the substrate.
摘要翻译： 切割工具设置有使用低热等离子体转移电弧和粉末金属施加的制造的切割边缘。 所施加的边缘和基底之间的热影响区域保持最小，同时施加的材料相对于基底的低稀释和渗透。
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公开(公告)号：US4822248A
公开(公告)日：1989-04-18
申请号：US38855
申请日：1987-04-15
CPC分类号： B23P6/007 , F01D5/005 , F01D5/225 , Y10T29/49318 , Y10T29/49728 , Y10T29/49746 , Y10T29/49993
摘要： The shrouded turbine blade is provided with a wear resistant surface on the seals as well as along the abutment faces including the notched edges. The wear surfaces are characterized in being metallurgically bonded to the base material of the shroud without significant dilution by the base material. This is accomplished by using transparent plasma arc welding at a low amperage and a low temperature. The wear resistant surface can be of a material different from the base material of the shroud proper.
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公开(公告)号：US4808055A
公开(公告)日：1989-02-28
申请号：US38851
申请日：1987-04-15
CPC分类号： B23P6/007 , F01D5/005 , F01D5/20 , Y02T50/672 , Y10T29/49318 , Y10T29/49742
摘要： The worn tip of a turbine blade is restored by applying a metallurgically bonded wear resistant surface at the tip. The wear resistant surface is applied using a transferred plasma arc and powdered metal particles.
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