公开(公告)号：US5961861A

公开(公告)日：1999-10-05

申请号：US932013

申请日：1997-09-17

申请人： Thurman Dwayne McCay ,  Mary Helen McCay ,  Narendra B. Dahotre

发明人： Thurman Dwayne McCay ,  Mary Helen McCay ,  Narendra B. Dahotre

IPC分类号： B23K26/03 ,  B23K26/34 ,  B23K35/30 ,  C23C26/02 ,  B23K26/04

CPC分类号： B23K26/032 ,  B23K26/034 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/123 ,  B23K26/32 ,  B23K26/34 ,  C23C26/02 ,  B23K2203/04 ,  B23K2203/08 ,  B23K2203/50 ,  B23K35/308

摘要： A feedback control system for performing and controlling the laser alloying of a workpiece. The apparatus includes a laser beam delivery system, a movement system capable of causing relative movement between a laser beam and a workpiece being irradiated by the laser beam, a precursor application system capable of applying a precursor at a desired rate to the surface of a moving workpiece, and a control system capable of receiving input signals indicative of one or more measured process parameters, processing those signals, and transmitting a control signal capable of controlling the laser beam delivery system, movement system, and/or precursor application system. Other embodiments of the invention utilize a variety of process parameter measuring devices in conjunction with the control system. These devices include, but are not limited to, temperature transducers, infrared detectors, and emission spectra measuring devices.

摘要翻译： 一种用于执行和控制工件的激光合金化的反馈控制系统。 该装置包括激光束传送系统，能够引起激光束和被激光束照射的工件之间的相对移动的移动系统，能够以期望的速率将前体施加到移动的表面的前体应用系统 工件以及能够接收表示一个或多个测量过程参数的输入信号，处理这些信号以及发送能够控制激光束传送系统，移动系统和/或前体应用系统的控制信号的控制系统。 本发明的其它实施例结合控制系统利用各种过程参数测量装置。 这些装置包括但不限于温度传感器，红外检测器和发射光谱测量装置。

公开(公告)号：US5825801A

公开(公告)日：1998-10-20

申请号：US806543

申请日：1997-02-24

申请人： Satoshi Nishida ,  Shigeto Takeshima

发明人： Satoshi Nishida ,  Shigeto Takeshima

IPC分类号： G01B11/00 ,  B23K26/00 ,  B23K26/06 ,  B23K26/42 ,  H01S3/08 ,  H01S3/105 ,  H01S3/106 ,  H01S3/136 ,  H01S3/139 ,  G02B5/08

CPC分类号： B23K26/0626 ,  B23K26/034 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/702 ,  H01S3/105 ,  H01S3/106 ,  H01S3/005 ,  H01S3/0805 ,  H01S3/136 ,  H01S3/139

摘要： The laser apparatus according to the present invention comprises an output mirror for reflecting a portion of a laser beam and transmitting therethrough a remaining thereof; a full reflection mirror located at a position opposite to this output mirror for completely reflecting a laser beam and changing the curvature; a laser medium provided between the output mirror and the full reflection mirror for causing induced emission; an aperture means for deciding a beam mode of a laser beam generated between the output mirror and the full reflection mirror and changing the aperture diameter; and a converging means for converging an outgoing laser beam from the output mirror and changing a distance from the output mirror according to a machining path; and the laser apparatus changes a curvature of the full reflection mirror and also changes a diameter of the aperture means.

摘要翻译： 根据本发明的激光装置包括用于反射激光束的一部分并在其中透过其余部分的输出镜; 位于与该输出反射镜相对的位置的全反射镜，用于完全反射激光束并改变曲率; 设置在输出反射镜和全反射镜之间用于引起感应发射的激光介质; 用于确定在输出反射镜和全反射镜之间产生的激光束的波束模式并改变孔径的光圈装置; 以及会聚装置，用于会聚来自输出反射镜的输出激光束，并根据加工路径改变与输出反射镜的距离; 并且激光装置改变全反射镜的曲率并且还改变光圈装置的直径。

公开(公告)号：US5814784A

公开(公告)日：1998-09-29

申请号：US381200

申请日：1995-01-31

申请人： Kenneth Grant Kinsman ,  Walter W. Duley

发明人： Kenneth Grant Kinsman ,  Walter W. Duley

IPC分类号： B23K26/06 ,  B23K26/42 ,  B23K26/00

CPC分类号： B23K26/123 ,  B23K26/032 ,  B23K26/034 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/60

摘要： A laser processing method establishes initial coupling between the laser beam and workpiece by irradiating an intermediate tool positioned adjacent the workpiece. The tool is more absorptive at the laser wavelength than the workpiece so that the efficiency of energy transfer is increased. Subsequent processing is performed by relative movement between the workpiece and beam, either independently of the tool or in conjunction with the tool. During further processing, the beam diameter is increased to be greater than the thickness of the workpiece to enhance the further processing.

摘要翻译： 激光处理方法通过照射位于工件附近的中间工具来建立激光束和工件之间的初始耦合。 该工具在激光波长下比工件更吸收，从而提高能量转移的效率。 随后的处理是通过工件和梁之间的相对运动进行的，无论是工具还是与工具结合在一起。 在进一步处理期间，光束直径增加到大于工件的厚度以增强进一步的处理。

公开(公告)号：US5196672A

公开(公告)日：1993-03-23

申请号：US840545

申请日：1992-02-25

申请人： Hidenobu Matsuyama ,  Kimihiro Shibata ,  Hiroki Sakamoto

发明人： Hidenobu Matsuyama ,  Kimihiro Shibata ,  Hiroki Sakamoto

IPC分类号： B23K26/00 ,  B23K26/03 ,  C21D1/09 ,  G01K11/12

CPC分类号： B23K26/034 ,  B23K26/064

摘要： A laser processing arrangement includes a laser oscillator which outputs a laser beam. The laser beam path is established such that the beam reflects from a flat surfaced mirror to a concave mirror and then to a second concave mirror before irradiating a work piece under processing. The arrangement further includes a temperature sensor associated with a temperature detecting means. The temperature detecting means is connected to a control unit which controls moving means connected to movable axes of a processing surface in order to move the work piece relative the laser beam. The control unit is further effective to control the laser oscillator according to a desired temperature range for processing. The temperature sensor is preferably positioned within 45.degree. of the laser beam and the angle of incidence of the laser beam is selected so as to be smaller than a brewster angle of the material of the work piece.

摘要翻译： 激光加工装置包括输出激光束的激光振荡器。 建立激光束路径，使得光束从平坦的表面反射镜反射到凹面镜，然后在照射处理的工件之前到第二凹面镜。 该装置还包括与温度检测装置相关联的温度传感器。 温度检测装置连接到控制单元，该控制单元控制连接到处理表面的可移动轴的移动装置，以便相对于激光束移动工件。 控制单元进一步有效地根据期望的温度范围控制激光振荡器进行处理。 温度传感器优选位于激光束的45°内，并且激光束的入射角被选择为小于工件材料的布鲁斯特角。

公开(公告)号：US4817020A

公开(公告)日：1989-03-28

申请号：US064644

申请日：1987-06-22

申请人： Tushar S. Chande ,  Angel L. Ortiz, Jr.

发明人： Tushar S. Chande ,  Angel L. Ortiz, Jr.

IPC分类号： B23K26/03 ,  B23K26/42 ,  G01K1/16 ,  G06F15/46

CPC分类号： B23K26/032 ,  B23K26/034 ,  B23K26/703

摘要： A laser materials processing system for computing a real time cooling rate experienced on a workpiece and responsively controlling the operation of a materials processing laser. An image of a point of laser beam-material interaction is transmitted via imaging optical fibers to ratio pyrometer apparatus which provides temperature proportional signals. The temperature signals are used to compute cooling rate.

摘要翻译： 一种激光材料处理系统，用于计算工件上经历的实时冷却速率并响应于控制材料加工激光器的操作。 通过成像光纤将激光束材料相互作用点的图像传输到提供温度比例信号的比例高温计装置。 温度信号用于计算冷却速率。

公开(公告)号：US4777341A

公开(公告)日：1988-10-11

申请号：US86861

申请日：1987-08-18

申请人： William M. Steen ,  Vijitha M. Weerasinghe

发明人： William M. Steen ,  Vijitha M. Weerasinghe

IPC分类号： B23K26/03 ,  B23K26/42 ,  B23K26/02

CPC分类号： B23K26/032 ,  B23K26/034 ,  B23K26/702

摘要： A beam monitor comprises a mirror for reflecting an incident beam of radiation to a target and for receiving a reflected beam from the target and has a surface on which the beams impinge. Incident and reflected beam channels are orthogonally disposed within the mirror. Each of the channels has an opening disposed in the surface for admitting the associated beam thereto. First and second detectors are operably associated with the mirror and each generates a signal indicative of a selected characteristic of the beam illuminating the associated channel. A controller compares the generated signals and thereby monitors at least one selected characteristic of the target or of the beam.

摘要翻译： 光束监视器包括用于将入射的辐射束反射到目标物并用于从目标物接收反射光束并具有光束撞击的表面的反射镜。 入射和反射光束通道正交设置在反射镜内。 每个通道具有设置在表面中的开口，用于允许相关联的光束。 第一和第二检测器可操作地与反射镜相关联，并且每个检测器产生指示照射相关通道的光束的所选特征的信号。 控制器比较所生成的信号，从而监视目标或光束的至少一个所选特征。

公开(公告)号：US4696101A

公开(公告)日：1987-09-29

申请号：US908920

申请日：1986-09-19

申请人： Riccardo Vanzetti ,  Ashod S. Dostoomian

发明人： Riccardo Vanzetti ,  Ashod S. Dostoomian

IPC分类号： B23K1/005 ,  B23K26/03 ,  H05K3/34 ,  H05K13/04 ,  H05K13/08 ,  B23P19/00

CPC分类号： B23K26/032 ,  B23K1/0056 ,  B23K26/034 ,  H05K13/0465 ,  H05K13/08 ,  H05K3/3494 ,  H05K2203/107 ,  H05K2203/163 ,  Y10T29/53178

摘要： A system for placing, soldering and inspecting component parts, such as soldered joints and electronic components, on a printed circuit board utilizes a transfer device for selecting and transferring specific electronic component parts to predetermined positions on a printed circuit board and holding each component part in the desired position by use of the transfer device during a reflow soldering operation to mechanically and electrically connect the component part to the printed circuit board. The reflow soldering utilizes a laser beam for injecting thermal energy into each soldered joint to melt the soldered material. An infrared detector senses thermal radiation and/or reflected radiation from the heated solder material to discontinue the application of the laser beam to the solder material upon liquifaction of the solder material. The infrared detector also continues to sense the thermal radiation from the heated solder material during cool down to provide a signal which will be compared with a standard signal to determine the quality of the solder joint.

摘要翻译： 用于在印刷电路板上放置，焊接和检查诸如焊接接头和电子部件的组成部件的系统利用传送装置，用于将特定电子部件选择和传送到印刷电路板上的预定位置并将每个部件保持在 在回流焊接操作期间通过使用转移装置来将组件部件机械地和电气地连接到印刷电路板的期望位置。 回流焊接使用激光束将热能注入每个焊接接头以熔化焊接材料。 红外检测器感测来自加热的焊料材料的热辐射和/或反射的辐射，以在焊料材料液化时停止施加激光束到焊料材料。 红外检测器还在冷却期间继续感测来自加热的焊料的热辐射，以提供将与标准信号进行比较的信号，以确定焊点的质量。

公开(公告)号：US4476150A

公开(公告)日：1984-10-09

申请号：US496366

申请日：1983-05-20

申请人： Douglas N. Rose

发明人： Douglas N. Rose

IPC分类号： B23K26/03 ,  B23K26/06 ,  B23K26/12 ,  C23C16/56 ,  B23K9/00

CPC分类号： B23K26/032 ,  B23K26/03 ,  B23K26/034 ,  B23K26/06 ,  B23K26/0648 ,  B23K26/12 ,  C23C16/56

摘要： A process of and related apparatus for achieving laser annealing of film-like surface layers of chemical vapor deposited silicon nitride and silicon carbide to relieve their inherent residual stresses. A laser beam is used to anneal the layers, in conjunction with a photoacoustic gas cell and related beam modulating means for utilizing a photoacoustic effect principal for monitoring, detecting and effectuating beam control as needed during the laser annealing process.

摘要翻译： 用于实现化学气相沉积氮化硅和碳化硅的薄膜状表面层的激光退火以减轻其固有的残余应力的方法和相关装置。 使用激光束与光声气体池相关联的光束调节装置和用于在激光退火过程中根据需要利用光声效应原理来监测，检测和实现光束控制的光层退火。

公开(公告)号：US3420719A

公开(公告)日：1969-01-07

申请号：US3420719D

申请日：1965-05-27

申请人： IBM

发明人： POTTS HORTON R ,  SPEICHER CHARLES A

IPC分类号： B23K26/00 ,  B23K26/03 ,  B23K26/06 ,  B23K26/18 ,  C23C10/04 ,  C23C10/28 ,  H01L21/225 ,  H01L21/268 ,  H01L7/44

CPC分类号： H01L21/268 ,  B23K26/034 ,  B23K26/066 ,  B23K26/18 ,  C23C10/04 ,  C23C10/28 ,  H01L21/2254 ,  H01L21/2258 ,  Y10S65/04 ,  Y10S148/071 ,  Y10S148/093 ,  Y10S148/106

公开(公告)号：US12121994B2

公开(公告)日：2024-10-22

申请号：US17598065

申请日：2019-03-29

申请人： DMG MORI CO., LTD.

发明人： Matjaz Kotar ,  Masaki Kondo ,  Gideon N. Levy ,  Edvard Govekar

IPC分类号： B23K26/342 ,  B23K26/03 ,  B23K26/073 ,  B23K26/08 ,  B23K26/70 ,  B33Y30/00

CPC分类号： B23K26/342 ,  B23K26/032 ,  B23K26/034 ,  B23K26/0734 ,  B23K26/0869 ,  B23K26/702 ,  B33Y30/00

摘要： A processing machine includes a laser irradiation device that emits an annular laser beam, and a wire feeding device that feeds a wire from an inside of the annular laser beam. When a workpiece irradiation proportion parameter (WIP) represented by an equation WIP=Pwp/P (Pwp: laser beam power introduced onto a workpiece surface when the wire exists in an irradiation region of the laser beam, P: the laser beam power introduced onto the workpiece surface when the wire does not exist in the irradiation region) is defined, a control device controls the wire feeding device so that a wire end abuts on the workpiece surface at a beginning of additive manufacturing. The control device determines initial power P0 based on the WIP at the beginning of the additive manufacturing, and controls the laser irradiation device so that the workpiece is irradiated with the laser beam at the initial power P0.