-
公开(公告)号：US4089456A
公开(公告)日：1978-05-16
申请号：US810692
申请日：1977-06-28
CPC分类号： B23K20/00 , Y10T29/49339
摘要： An improved diffusion bonding fixture for holding workpiece surfaces in opposed contacting relation and exerting controlled pressure across the surfaces is disclosed. The fixture includes components having different thermal expansion characteristics which hold the workpiece surfaces together and generate pressure on the surfaces upon heating to the bonding temperature. The fixture also includes one or more pressure-controlling shim members disposed between the components of the fixture, the shim members being selectively and controllably deformed by the expanding components to control said bonding pressure at the desired value and to prevent unwanted distortion of the workpiece surfaces and fixture components. The fixture is especially useful in bonding workpiece surfaces of highly complex configurations, such as those associated with gas turbine blades, vanes and the like.
摘要翻译： 公开了一种用于将工件表面保持在相对的接触关系并且在表面上施加控制压力的改进的扩散粘合固定装置。 夹具包括具有不同热膨胀特性的部件，其将工件表面保持在一起，并且在加热到接合温度时在表面上产生压力。 固定装置还包括一个或多个设置在固定装置的部件之间的压力控制垫片构件，垫片构件由膨胀构件选择性地和可控制地变形，以将所述粘合压力控制在所需值并防止工件表面的不期望的变形 和夹具组件。 固定装置特别适用于粘合高度复杂构造的工件表面，例如与燃气轮机叶片，叶片等相关联的那些。
-
公开(公告)号：US4454740A
公开(公告)日：1984-06-19
申请号：US300725
申请日：1981-09-10
申请人： James W. Neal , Joseph F. Loersch
发明人： James W. Neal , Joseph F. Loersch
摘要： A method for simultaneously shot peening and smoothing includes use of relatively large, smooth, hard, spherical steel shot having a substantially uniform diameter in the range 1-2.5 mm. Titanium workpieces are provided in one step with a compressive stress layer of the order of 0.13 mm and a surface finish of better than 15.times.10.sup.-6 inch AA, compared to conventional peened finishes of the order of 40.times.10.sup.-6 inch AA. Surface finish and peening intensity are inter-related and dependent on shot diameter, mass, velocity, and energy within relatively small limits. The shot diameter is uniform within .+-.0.05 mm; the shot impact velocity is uniform within .+-.4 percent or less, in the range 1.4-12 m/s.
摘要翻译： 同时喷丸硬化和平滑化的方法包括使用具有在1-2.5mm范围内的基本上均匀直径的较大，光滑，硬的球形钢丸。 相比于40×10 -6英寸AA级的常规喷丸处理，钛工件在一个步骤中具有0.13毫米数量级的压应力层和优于15×10 -6英寸AA的表面光洁度。 表面光洁度和喷丸强度是相关的，并且取决于喷射直径，质量，速度和能量在相对较小的范围内。 射出直径在±0.05mm内均匀; 射击冲击速度在±4％以内是均匀的，在1.4-12m / s的范围内。
-
公开(公告)号：US4426867A
公开(公告)日：1984-01-24
申请号：US300718
申请日：1981-09-10
申请人： James W. Neal , Joseph F. Loersch
发明人： James W. Neal , Joseph F. Loersch
CPC分类号： C21D7/06 , C22F1/00 , C23C24/04 , Y10T29/479 , Y10T29/49336
摘要： Shot peening of thin edges of workpieces which are subject to deformation damage by direct impacts is accomplished by rotating the workpiece edge near centerline through a particular angle measured from the normal to the shot streamline. The angle is sufficient to cause oblique blows on the centerline of the edge, but insufficient to cause direct impacts. Compressive stresses by the oblique blows provide residual compressive stresses along the centerline to the desired depth. The angle is calcuable from the edge radius, the depth of stressing desired at the centerline, and the depth of stressing produced by shot at a reference location. Oscillatory rotation is preferably used to obtain even peening.
摘要翻译： 通过直接冲击造成变形损坏的工件的薄边缘的喷丸硬化是通过将工件边缘靠近中心线旋转通过从法线到射流流线测量的特定角度来实现的。 该角度足以引起边缘中心线的倾斜冲击，但不足以引起直接冲击。 通过倾斜冲击的压缩应力将沿着中心线的残余压应力提供到期望的深度。 角度可以从边缘半径计算，中心线所需的应力深度以及在参考位置拍摄产生的应力深度。 振荡旋转优选用于获得均匀的喷丸处理。
-
公开(公告)号：US4532403A
公开(公告)日：1985-07-30
申请号：US600639
申请日：1984-04-16
CPC分类号： B23K15/0046
摘要： By coating a workpiece with a uniform layer of polyimide containing surfactant upon the nonweld areas, spatter produced in electron beam welding of the workpiece is prevented from adhering to the workpiece surface in the nonweld areas. The polyimide coating is so constituted as to be adherent, heat stable, acid resistant, and chemically removeable. Silicone surfactant is preferred.
摘要翻译： 通过在非焊接区域上涂覆含有表面活性剂的均匀聚酰亚胺层的工件，防止在工件的电子束焊接中产生的飞溅物粘附到非焊接区域中的工件表面。 聚酰亚胺涂层被构造成粘附，热稳定，耐酸和可化学除去。 硅氧烷表面活性剂是优选的。
-
公开(公告)号：US4217190A
公开(公告)日：1980-08-12
申请号：US50388
申请日：1979-06-20
摘要： Disclosed is apparatus and method for electrochemically finishing the edges of airfoils and other thin edged objects. When the edge on an airfoil varies in thickness along its length, a tapered electrode is provided which has both a decreased diameter and increased spacing distance, providing a means for obtaining an edge with a radius proportioned to the thickness. Generally, in the system having an electrode with a unit surface area A, and with an electrode-workpiece surface spacing distance S, both A and S are changed so that the ratio A/S is lowered for electrode portions proximate to edge portions having lowered thickness.
摘要翻译： 公开了用于电化学整理翼型件和其他薄边缘物体的边缘的装置和方法。 当机翼上的边缘沿其长度的厚度变化时，提供锥形电极，其具有减小的直径和增加的间隔距离，提供用于获得具有与厚度成比例的半径的边缘的装置。 通常，在具有单位表面积A的电极和电极 - 工件表面间隔距离S的系统中，改变A和S两者，使得靠近具有降低的边缘部分的边缘部分的电极部分的比率A / S降低 厚度。
-
公开(公告)号：US4470292A
公开(公告)日：1984-09-11
申请号：US300724
申请日：1981-09-10
CPC分类号： G01G19/00 , G01F1/30 , G01L5/0052
摘要： In shot peening apparatus, a device is provided for sensing shot peening intensity and the uniformity of shot flow. It is basically comprised of a detector plate mounted on a cantilevered arm; torque created at the arm mounting due to the impact of shot is measured with a transducer. The detector is mounted on a structure adapted to translate the detector through a large shot peening zone. The invention is especially suited for assuring consistency in a process wherein uniform spherical shot is gravity accelerated to impact a workpiece with uniform velocity.
摘要翻译： 在喷丸硬化装置中，提供了用于感测喷丸强度和喷射流均匀性的装置。 它基本上由安装在悬臂上的检测器板组成; 使用传感器测量由于射击的影响在臂安装时产生的扭矩。 检测器安装在适于将检测器平移通过大喷丸硬化区的结构上。 本发明特别适用于在均匀球形射击被重力加速以均匀速度冲击工件的过程中确保一致性。
-
公开(公告)号：US4432220A
公开(公告)日：1984-02-21
申请号：US300726
申请日：1981-09-10
申请人： Joseph F. Loersch , James W. Neal
发明人： Joseph F. Loersch , James W. Neal
摘要： In apparatus for shot peening, gravity is used to accelerate uniform sized steel shot, and thereby impart a combination of good surface finish and uniform compressive stresses to workpieces. It is especially useful for finishing gas turbine airfoils. Shot is introduced into the peening enclosure (28) through a gate (40) at near zero velocity. It is then accelerated along a streamline (31) toward the workpiece (18) with uniform velocity. The workpiece, positioned along the streamline, can be manipulated in three rotational modes: oscillatory rotation to uniformly peen contoured surfaces of a workpiece, periodic incremental rotation to peen different sides of a workpiece; and, tilting motion to enable peening of shoulders (22). The apparatus is especially suited to peening fragile workpieces such as gas turbine airfoils (18). A diverter plate (44) intercepts the shot stream at times when repositioning of a fragile workpiece is undertaken. Thus, possibly damaging impacts are avoided and steady state operation is able to be promptly resumed.
摘要翻译： 在喷丸硬化装置中，使用重力加速均匀的钢丸，从而赋予工件良好的表面光洁度和均匀压缩应力的组合。 它对于整理燃气轮机翼型特别有用。 射流通过门（40）以接近零速度被引入喷丸罩（28）。 然后沿着流线（31）以均匀的速度朝向工件（18）加速。 沿着流线定位的工件可以以三种旋转模式进行操作：振动旋转到工件的均匀喷丸轮廓表面，周期性地增加旋转到工件的不同侧面; 以及倾斜运动以使肩部（22）硬化。 该装置特别适用于硬化工件，例如燃气轮机翼型件（18）。 在进行易碎工件重新定位的时候，转向板（44）拦截喷射流。 因此，可以避免可能的破坏性影响，并能够迅速恢复稳态运行。
-
公开(公告)号：US4428213A
公开(公告)日：1984-01-31
申请号：US300723
申请日：1981-09-10
CPC分类号： C21D7/06
摘要： Disclosed is a two step process of peening for workpieces having small radii fillets or fragile edges, such as gas turbine airfoils have. In the first step, relatively small size shot of less than 1 mm dia is used to impart a first peening intensity to a workpiece. This results in a first relatively rough surface finish. In the second step, shot of substantially uniform diameter in the range 1-2.5 mm is impacted with uniform velocity to provide a surface finish smoother than 30AA (10.sup.-6 inch). When fillets are peened, improved fatigue life results from the duplex process. When used on edges, where direct edge impact is avoided in the second step, deformed edges are avoided by the process. Yet the workpiece is substantially smooth and the edges have the requisite residual stress distribution.
摘要翻译： 公开了对具有小的半圆角或脆弱边缘的工件（例如燃气轮机翼型）进行喷丸的两步法。 在第一步骤中，使用小于1mm直径的相对较小的尺寸喷射以对工件施加第一喷丸强度。 这导致了第一个比较粗糙的表面光洁度。 在第二步中，在1-2.5毫米范围内的基本均匀直径的射击以均匀的速度冲击，以提供比30AA（10-6英寸）更光滑的表面光洁度。 当圆角喷丸时，双相过程会导致疲劳寿命的提高。 当在第二步中避免直接边缘冲击的边缘上使用时，通过该过程避免变形的边缘。 然而工件基本上平滑，并且边缘具有必需的残余应力分布。
-
公开(公告)号：US4514469A
公开(公告)日：1985-04-30
申请号：US300727
申请日：1981-09-10
申请人： Joseph F. Loersch , James W. Neal
发明人： Joseph F. Loersch , James W. Neal
CPC分类号： C22F1/00 , C21D7/06 , C23C14/5886 , C23C4/134 , C23C4/18 , Y10T428/12063
摘要： Disclosed are coatings which are improved by a special peening process. Uniform sized spherical steel shot, in the range 1-2.5 mm is impacted at uniform low velocities onto a coated workpiece. Peening intensities are in the range 0.30-0.60 mm N. MCrAlY high temperature coatings are particularly improved, with densities of the order of 99 percent. Physical vapor desposited coatings have surface finishes of the order of 30.times.10.sup.-6 inch AA (Arithmetic Average) and plasma sprayed coatings have finishes of the order of 100.times.10.sup.-6 inch AA compared to unpeened finishes of 50-60.times.10.sup.-6 inch AA and 200-300.times.10.sup.-6 AA respectively.
摘要翻译： 公开了通过特殊喷丸处理改进的涂层。 尺寸为1-2.5毫米的均匀尺寸的球形钢丸以均匀的低速冲击到涂层工件上。 喷丸强度在0.30-0.60 mm N范围内。MCrAlY耐高温涂层得到了特别的改进，密度达99％。 物理气相沉积涂层具有30×10 -6英寸AA（算术平均）数量级的表面光洁度，等离子体喷涂涂层具有100×10 -6英寸AA级的表面光洁度，与50-60×10 -6英寸AA和200- 分别为300x10-6 AA。
-
公开(公告)号：USRE31605E
公开(公告)日：1984-06-19
申请号：US405858
申请日：1982-08-06
摘要： Disclosed is apparatus and method for electrochemically finishing the edges of airfoils and other thin edged objects. When the edge on an airfoil varies in thickness along its length, a tapered electrode is provided which has both a decreased diameter and increased spacing distance, providing a means for obtaining an edge with a radius proportioned to the thickness. Generally, in the system having an electrode with a unit surface area A, and with an electrode-workpiece surface spacing distance S, both A and S are changed so that the ratio A/S is lowered for electrode portions proximate to edge portions having lowered thickness.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.029 秒)
