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1. 发明授权

US07122761B2 Friction processing weld preparation 有权
标题翻译：摩擦加工焊接准备
公开(公告)号：US07122761B2
公开(公告)日：2006-10-17
申请号：US10292294
申请日：2002-11-12
申请人： Peter J. Ditzel , Roy K. Holbert, Jr.
发明人： Peter J. Ditzel , Roy K. Holbert, Jr.
IPC分类号： B23K20/12
CPC分类号： B23K9/235 , B23K20/1235 , B23K20/1275 , B23K20/233
摘要： A weld preparation process that translates a consumable or nonconsumable tool over an area that is subsequently to be welded to impart friction heating to the surface. Rotary or linearly oscillated motion between the tool and the workpiece is used to generate heat and produce deformation in the surface, resulting in recrystallization of the area being processed and a compressive residual stress.
摘要翻译：一种焊接准备过程，其将易消耗或不可消耗的工具转移到随后被焊接的区域上以赋予表面摩擦加热。使用工具和工件之间的旋转或线性振荡运动来产生热量并在表面产生变形，导致被加工区域的再结晶和压缩残余应力。

2. 发明授权

US07896986B2 Heat treatment of superalloy components 有权
标题翻译：超级合金部件的热处理
公开(公告)号：US07896986B2
公开(公告)日：2011-03-01
申请号：US10932718
申请日：2004-09-02
申请人： Srikanth C. Kottilingam , Peter J. Ditzel
发明人： Srikanth C. Kottilingam , Peter J. Ditzel
IPC分类号： C22F1/10
CPC分类号： C22F1/10 , Y10T29/49336
摘要： An improved method of heat treating superalloys prior to welding includes subjecting only the portion of the component to be repaired to a localized heat treatment, leaving the remainder of the component untreated. The localized heat treatment permits the use of higher hold temperatures that are near, at, or above the Ni3(Al,Ti) solution temperature of the alloy. Such heat treatment prevents strain age cracking and also prevents recrystallization in areas that are not heat treated. Such localized heat treatment can be applied before and/or after welding, for material rejuvenation, pre-brazing, and post-brazing.
摘要翻译：在焊接之前对高温合金进行热处理的改进方法包括只对待修复的部件的一部分进行局部热处理，使组分的其余部分未经处理。局部热处理允许使用接近，在或高于合金的Ni3（Al，Ti）溶液温度的较高保持温度。这种热处理可防止应变时效开裂，并且防止在未被热处理的区域中的再结晶。这种局部热处理可以在焊接之前和/或之后施加，用于材料复原，预钎焊和后钎焊。

3. 发明授权

US07028881B2 Method for providing removable weld backing 有权
标题翻译：提供可拆卸焊接背衬的方法
公开(公告)号：US07028881B2
公开(公告)日：2006-04-18
申请号：US10666215
申请日：2003-09-18
申请人： Peter J. Ditzel , Paul J. Zombo
发明人： Peter J. Ditzel , Paul J. Zombo
IPC分类号： B23K5/22 , B23K31/02
CPC分类号： B23K37/06
摘要： Method for welding objects having limited backside access to a cavity behind a region to be welded. The method includes inserting a fugitive backing material in an installation state into a first portion of the cavity proximate the region to be welded and then transforming the fugitive backing material to a rigid state. The method further includes forming a weld in the region and then transforming the fugitive backing material to a removable state and removing the fugitive backing material from the cavity. The method may also include placing a pre-formed weld backing in the cavity and filling the cavity with a fugitive backing material. The method further includes transforming the fugitive backing material to a rigid state, forming a weld, and transforming the fugitive backing material to a removable state. The method may further include removing the fugitive backing material and removing the pre-formed weld backing from the cavity.
摘要翻译：用于焊接物体的方法，所述物体具有有限的后侧进入待焊接区域后面的腔体。该方法包括在安装状态下将短暂的背衬材料插入靠近待焊接的区域的空腔的第一部分中，然后将短暂的背衬材料转变成刚性状态。该方法还包括在该区域中形成焊接，然后将短暂的背衬材料转变为可移除状态，并从空腔中除去短暂的背衬材料。该方法还可以包括将预形成的焊接背衬放置在空腔中并用短暂的背衬材料填充空腔。该方法还包括将短效背衬材料转变为刚性状态，形成焊缝，以及将短暂的背衬材料转变为可移除状态。该方法可以进一步包括去除短暂的背衬材料并从空腔移除预先形成的焊接背衬。

4. 发明授权

US06883700B2 Turbine blade closure system 失效
标题翻译：涡轮叶片封闭系统
公开(公告)号：US06883700B2
公开(公告)日：2005-04-26
申请号：US10255894
申请日：2002-09-26
申请人： Srikanth Chandrudu Kottilingam , Peter J. Ditzel
发明人： Srikanth Chandrudu Kottilingam , Peter J. Ditzel
IPC分类号： B23K20/12 , F01D5/18 , B23K31/02
CPC分类号： F01D5/187 , B23K20/12 , B23K20/1205 , B23K20/129 , B23K2101/001 , F05D2230/211 , Y02T50/676
摘要： A turbine blade closure system composed of a closure member capable of being friction welded in an aperture in a hollow-cast turbine blade to prevent the escape of cooling fluids from an internal cavity in the turbine blade. In one embodiment, the aperture is formed in the turbine blade during the manufacturing process as a result of one or more support projections used to position a core block in a turbine blade mold.
摘要翻译：一种涡轮叶片闭合系统，其由能够摩擦焊接在中空铸造涡轮机叶片的孔中的封闭构件组成，以防止冷却流体从涡轮机叶片内的内部逸出。在一个实施例中，由于用于将芯块定位在涡轮叶片模具中的一个或多个支撑突起，在制造过程期间，在涡轮叶片中形成孔。

5. 发明授权

US07775414B2 Consumable insert and method of using the same 有权
标题翻译：消耗品插入物及其使用方法
公开(公告)号：US07775414B2
公开(公告)日：2010-08-17
申请号：US10679080
申请日：2003-10-04
申请人： Peter J. Ditzel , Srikanth Kottilingam
发明人： Peter J. Ditzel , Srikanth Kottilingam
IPC分类号： B23K35/14
CPC分类号： B23K35/0266 , B23K35/0272 , B23K35/3033
摘要： A consumable insert (10) formed of material particles (14) contained within a sheath (12). The particles may be a melting point depressant that has a concentration that is greater in a center region (16) of the insert than in the surface region (18) of the insert, thereby facilitating complete melting of the insert during a transient liquid phase bonding process. Alternatively, the particles may be a low-ductility material, such as a superalloy or an MCrAlY alloy, contained within a high ductility sheath material formed into a ribbon shape, thereby allowing the low-ductility material to be delivered in ribbon form during a coating process.
摘要翻译：由包含在护套（12）内的材料颗粒（14）形成的可消耗插入件（10）。颗粒可以是在插入件的中心区域（16）中具有比在插入件的表面区域（18）中大的浓度的熔点抑制剂，从而有助于在瞬态液相粘合期间插入物的完全熔化处理。或者，颗粒可以是包含在形成为带状的高延展性护套材料中的低延展性材料，例如超合金或MCrAlY合金，从而允许低延展性材料在涂层期间以带状输送处理。

6. 发明授权

US07146725B2 Repair of combustion turbine components 有权
标题翻译：燃气轮机组件修理
公开(公告)号：US07146725B2
公开(公告)日：2006-12-12
申请号：US10669867
申请日：2003-09-24
申请人： Srikanth C. Kottilingam , Peter J. Ditzel
发明人： Srikanth C. Kottilingam , Peter J. Ditzel
IPC分类号： B23P6/00
CPC分类号： B23P6/007 , B23K10/027 , B23K35/0227 , B23K35/0244 , B23K35/32 , B23K2101/001 , B23P2700/06 , F01D5/005 , F01D5/187 , F01D9/023 , Y02T50/67 , Y02T50/676 , Y10T29/49233 , Y10T29/49318 , Y10T29/49734 , Y10T29/49737 , Y10T29/49742
摘要： A method of repairing a combustion turbine component having damage located at or near a cooling hole or hollow or geometrically complex portion of the component is provided. The method comprises forming a preparatory groove that extends from a surface of the component to the damaged area but does not extend to the cooling hole or hollow or geometrically complex portion of the component, the groove extending 40–90% the distance from the component to the damaged area; spraying a filler material into the groove with a micro-plasma torch at a current of less than 50 amperes; and filling the groove with the filler material such that the heated filler material substantially extends from the cooling hole or hollow or geometrically complex portion of the component to a surface of the component.
摘要翻译：提供了一种修复具有位于组件的冷却孔或中空或几何复杂部分处或附近的损伤的燃气涡轮机部件的方法。该方法包括形成从部件的表面延伸到损坏区域但不延伸到部件的冷却孔或中空或几何复杂部分的准备槽，该槽延伸40-90％的距离，从该部件到受损区域; 使用小于50安培的电流的微等离子体焰炬将填充材料喷射到凹槽中; 并且用填充材料填充凹槽，使得加热的填充材料基本上从组件的冷却孔或中空或几何复杂的部分延伸到部件的表面。

7. 发明授权

US08220697B2 Weldability of alloys with directionally-solidified grain structure 有权
标题翻译：具有定向凝固的晶粒结构的合金的可焊性
公开(公告)号：US08220697B2
公开(公告)日：2012-07-17
申请号：US11036991
申请日：2005-01-18
申请人： Srikanth C. Kottilingam , Peter J. Ditzel
发明人： Srikanth C. Kottilingam , Peter J. Ditzel
IPC分类号： C22F1/10 , B23K26/32 , B23K26/42
CPC分类号： C22C21/00 , B23K26/356
摘要： A method of welding alloys having directionally-solidified grain structure. The methods improve the weldability of these alloys by creating a localized region of fine grain structure, wherein the welding occurs in these localized regions. The localized regions are formed by applying strain energy using a variety of different methods, such as by hammer peening, laser peening or sand blasting. Then, a heat treatment step may be used to create recrystallized grains having the fine grain structure. The region of fine grain structure provides better weldability.
摘要翻译：焊接具有定向凝固的晶粒结构的合金的方法。该方法通过产生细晶粒结构的局部区域来改善这些合金的可焊性，其中焊接发生在这些局部区域中。通过使用各种不同的方法施加应变能来形成局部区域，例如通过锤击，激光喷丸或喷砂。然后，可以使用热处理步骤来产生具有细晶粒结构的再结晶晶粒。细晶粒结构区域提供更好的焊接性。

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