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1. 发明授权

US06328026B1 Method for increasing wear resistance in an engine cylinder bore and improved automotive engine 失效
标题翻译：提高发动机气缸孔和改进型汽车发动机耐磨性的方法
公开(公告)号：US06328026B1
公开(公告)日：2001-12-11
申请号：US09417699
申请日：1999-10-13
申请人： Yucong Wang , Barry J. Brandt , John Brice Bible , Narendra B. Dahotre , John A. Hopkins , Mary Helen McCay , Thurman Dwayne McCay , Fredrick A. Schwartz
发明人： Yucong Wang , Barry J. Brandt , John Brice Bible , Narendra B. Dahotre , John A. Hopkins , Mary Helen McCay , Thurman Dwayne McCay , Fredrick A. Schwartz
IPC分类号： F02B7508
CPC分类号： B24B33/022 , F02F1/00
摘要： This invention is directed to a method for enhancing the wear resistance of an iron engine cylinder bore comprising laser alloying of the cylinder bore with selected precursors and honing the cylinder bore to a preselected dimension. The present invention is particularly well suited for enhancing the resistance to wear caused by the corrosion caused by automotive ethanol fuel. The present invention is also directed toward an improved automotive engine comprising alloyed cylinder bores with enhanced wear resistance characteristics.
摘要翻译：本发明涉及一种用于提高熨斗发动机气缸孔的耐磨性的方法，其包括气缸孔与所选前驱体的激光合金化，并将汽缸孔珩磨至预选尺寸。本发明特别适用于提高由汽车乙醇燃料引起的腐蚀引起的耐磨损性。本发明还涉及一种改进的汽车发动机，其包括具有增强的耐磨特性的合金气缸孔。

2. 发明授权

US6016227A Apparatus and method for producing an improved laser beam 失效
标题翻译：用于制造改进的激光束的装置和方法
公开(公告)号：US6016227A
公开(公告)日：2000-01-18
申请号：US127396
申请日：1998-07-31
申请人： John A. Hopkins , Frederick A. Schwartz , Mary Helen McCay , Thurman Dwayne McCay , Narendra B. Dahotre , John Brice Bible
发明人： John A. Hopkins , Frederick A. Schwartz , Mary Helen McCay , Thurman Dwayne McCay , Narendra B. Dahotre , John Brice Bible
IPC分类号： G02B13/00 , B23K26/00 , B23K26/06 , B23K26/073 , G02B27/09 , H01S3/00 , G02B13/08 , G02B3/02
CPC分类号： G02B27/0966 , B23K26/0081 , B23K26/06 , B23K26/0626 , B23K26/064 , B23K26/0648 , B23K26/0665 , G02B27/09 , G02B27/0911
摘要： This invention relates to an improved laser beam useful in material surface processing and an apparatus for producing the improved laser beam. The improved laser beam of the present invention comprises a power distribution that is more intense at the outer regions than in the central region. The invention includes an apparatus comprising a power spherical and cylindrical optical elements aligned to focus and/or shape a laser beam into a novel profile useful in material surface processing. The invention further includes a method of using this apparatus to focus and/or shape a laser beam for producing Laser Induced Surface Improvements, hereinafter referred to as "LISI".
摘要翻译：本发明涉及一种可用于材料表面处理的改进的激光束以及用于制造改进的激光束的装置。本发明的改进的激光束包括在外部区域比在中心区域更强的功率分布。本发明包括一种包括功率球面和圆柱形光学元件的装置，其被对准以将激光束聚焦和/或形成用于材料表面处理的新型材。本发明还包括使用该装置来聚焦和/或形成激光束以产生激光诱导表面改进的方法，以下称为“LISI”。

3. 发明授权

US5961861A Apparatus for laser alloying induced improvement of surfaces 失效
标题翻译：用于激光合金化的装置引起表面的改善
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。

4. 发明授权

US5985056A Method for laser induced improvement of surfaces 失效
标题翻译：激光诱导表面改善的方法
公开(公告)号：US5985056A
公开(公告)日：1999-11-16
申请号：US932022
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 , C21D1/54
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： The present invention is directed toward a process for laser alloying of a workpiece and an apparatus for carrying out said process. The method embodiment of the present invention is directed toward a process for forming an alloy in the surface of a metal substrate comprising the steps of applying an alloy precursor material at a controlled rate to the surface of the substrate and then melting the surface and the precursor alloy material by the application of a laser beam in order to form an alloy of the precursor alloy material and the substrate. The method embodiment of the present invention further comprises the steps of measuring one or more parameters indicative of alloying depth, controlling the rate of precursor application in response to at least one of the measured parameters, and allowing the allow to solidify. Other method embodiments of the present invention are directed towards the measurement of specific parameters indicative of alloying depth, such as workpiece temperate or emission spectra data from the laser/surface interface. Other embodiments of the present invention are directed toward controlling laser beam power in response to a measured parameter.
摘要翻译：本发明涉及一种用于工件的激光合金化和用于执行所述工艺的装置的方法。本发明的方法实施方案涉及在金属基材的表面形成合金的方法，包括以下步骤：以受控的速率将合金前体材料施加到基材的表面，然后熔化表面和前体合金材料通过施加激光束以形成前体合金材料和基底的合金。本发明的方法实施例还包括以下步骤：测量指示合金深度的一个或多个参数，响应于所测量的参数中的至少一个控制前体施用的速率，并允许固化。本发明的其它方法实施例涉及指示合金深度的具体参数的测量，例如来自激光/表面界面的工件温度或发射光谱数据。本发明的其它实施例涉及响应于测量参数控制激光束功率。

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