公开(公告)号：US5465897A

公开(公告)日：1995-11-14

申请号：US220306

申请日：1994-03-29

申请人： Raymond D. Dixon ,  Lawrence H. Roe ,  Albert Migliori

发明人： Raymond D. Dixon ,  Lawrence H. Roe ,  Albert Migliori

IPC分类号： B06B1/06 ,  B23K20/02 ,  H01L41/24 ,  B23K1/19 ,  B23K101/36

CPC分类号： B06B1/0677 ,  B23K20/023 ,  H01L41/313

摘要： An ultrasonic transducer is formed as a diffusion bonded assembly of piezoelectric crystal, backing material, and, optionally, a ceramic wear surface. The mating surfaces of each component are silver films that are diffusion bonded together under the application of pressure and heat. Each mating surface may also be coated with a reactive metal, such as hafnium, to increase the adhesion of the silver films to the component surfaces. Only thin silver films are deposited, e.g., a thickness of about 0.00635 mm, to form a substantially non-compliant bond between surfaces. The resulting transducer assembly is substantially free of self-resonances over normal operating ranges for taking resonant ultrasound measurements.

摘要翻译： 超声波换能器形成为压电晶体，背衬材料和任选的陶瓷磨损表面的扩散接合组件。 每个组件的配合表面是在压力和热力的应用下扩散粘合在一起的银膜。 每个配合表面也可以涂覆有诸如铪的反应性金属，以增加银膜与组分表面的粘合性。 仅沉积薄的银膜，例如约0.00635mm的厚度，以在表面之间形成基本上非柔顺的结合。 所得到的换能器组件在正常操作范围内基本上没有自谐振，用于进行共振超声测量。

公开(公告)号：US5495763A

公开(公告)日：1996-03-05

申请号：US75159

申请日：1993-06-10

申请人： George W. Rhodes ,  Albert Migliori ,  Raymond D. Dixon

发明人： George W. Rhodes ,  Albert Migliori ,  Raymond D. Dixon

IPC分类号： G01N29/12 ,  G01H13/00

CPC分类号： G01N29/12 ,  G01N2291/02827

摘要： A method of measurement of objects to determine object flaws, Poisson's ratio (.sigma.) and shear modulus (.mu.) is shown and described. First, the frequency for expected degenerate responses is determined for one or more input frequencies and then splitting of degenerate resonant modes are observed to identify the presence of flaws in the object. Poisson's ratio and the shear modulus can be determined by identification of resonances dependent only on the shear modulus, and then using that shear modulus to find Poisson's ratio using other modes dependent on both the shear modulus and Poisson's ratio.

摘要翻译： 显示和描述了测量物体的方法，以确定物体瑕疵，泊松比（sigma）和剪切模量（μ）。 首先，针对一个或多个输入频率确定预期退化响应的频率，然后观察到退化谐振模式的分裂以识别对象中存在缺陷。 泊松比和剪切模量可以通过仅根据剪切模量的共振的鉴定来确定，然后使用该剪切模量来找到取决于剪切模量和泊松比的其他模式的泊松比。

公开(公告)号：US5355731A

公开(公告)日：1994-10-18

申请号：US880393

申请日：1992-05-08

申请人： Raymond D. Dixon ,  Albert Migliori ,  William M. Visscher

发明人： Raymond D. Dixon ,  Albert Migliori ,  William M. Visscher

IPC分类号： G01H13/00

CPC分类号： G01H13/00

摘要： A method is provided for grading production quantities of spherical objects, such as roller balls for bearings. A resonant ultrasound spectrum (RUS) is generated for each spherical object and a set of degenerate sphere-resonance frequencies is identified. From the degenerate sphere-resonance frequencies and known relationships between degenerate sphere-resonance frequencies and Poisson's ratio, a Poisson's ratio can be determined, along with a "best" spherical diameter, to form spherical parameters for the sphere. From the RUS, fine-structure resonant frequency spectra are identified for each degenerate sphere-resonance frequency previously selected. From each fine-structure spectrum and associated sphere parameter values an asphericity value is determined. The asphericity value can then be compared with predetermined values to provide a measure for accepting or rejecting the sphere.

摘要翻译： 提供了用于对球面物体的生产量进行分级的方法，例如用于轴承的滚珠。 对于每个球形物体产生共振超声波谱（RUS），并且识别一组简并球体共振频率。 从退化球体共振频率和退化球共振频率与泊松比之间的已知关系可以确定泊松比与“最佳”球直径，以形成球体的球面参数。 从RUS，对于先前选择的每个简并球共振频率，识别精细结构的共振频谱。 从每个精细结构光谱和相关球参数值，确定非球面度值。 然后将非球面度值与预定值进行比较，以提供接受或拒绝球体的措施。

公开(公告)号：US06429402B1

公开(公告)日：2002-08-06

申请号：US09587183

申请日：2000-06-02

申请人： Raymond D. Dixon ,  Gary K. Lewis ,  John O. Milewski

发明人： Raymond D. Dixon ,  Gary K. Lewis ,  John O. Milewski

IPC分类号： H05B100

CPC分类号： B22F3/1055 ,  B22F5/12 ,  B22F2003/1056 ,  B23K26/34 ,  B29C64/153 ,  B29C2791/005 ,  Y02P10/295

摘要： It has been discovered that wires and small diameter rods can be produced using laser deposition technology in a novel way. An elongated article such as a wire or rod is constructed by melting and depositing particulate material into a deposition zone which has been designed to yield the desired article shape and dimensions. The article is withdrawn from the deposition zone as it is formed, thus enabling formation of the article in a continuous process. Alternatively, the deposition zone is moved along any of numerous deposition paths away from the article being formed.

摘要翻译： 已经发现，使用激光沉积技术可以以新颖的方式制造电线和小直径的棒。 通过将颗粒材料熔化并沉积到已设计成产生所需制品形状和尺寸的沉积区中来构造细长的制品，例如线或棒。 制品在其形成时从沉积区域中取出，从而能够以连续的方法形成制品。 或者，沉积区域沿着远离所形成的制品的多个沉积路径中的任何一个移动。

公开(公告)号：US5615826A

公开(公告)日：1997-04-01

申请号：US520632

申请日：1995-08-29

申请人： Raymond D. Dixon ,  Frank M. Smith ,  Richard F. O'Leary

发明人： Raymond D. Dixon ,  Frank M. Smith ,  Richard F. O'Leary

IPC分类号： B23K9/173 ,  B23K35/00 ,  B23K15/00

CPC分类号： B23K35/002 ,  B23K9/173 ,  B23K2203/10 ,  Y10T428/12736

摘要： A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces together. The aluminum alloy coated beryllium surfaces may be machined into a desired welding joint configuration before welding. The beryllium may be an alloy of beryllium or a beryllium compound. The aluminum alloy may comprise aluminum and silicon.

摘要翻译： 提供一种用于接合铍片的方法，包括：在至少一个铍表面上沉积铝合金; 将铍表面与至少一个其他铍表面接触; 并将铝合金涂层的铍表面焊接在一起。 使用气体金属电弧焊可将铝合金沉积在铍上。 铝合金涂层的铍表面可以在将焊件焊接在一起之前经受高温和高压以降低孔隙率。 铝合金涂层的铍表面可以在焊接之前被加工成所需的焊接接头构型。 铍可以是铍或铍化合物的合金。 铝合金可以包括铝和硅。