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1. 发明公开

EP0102835A3 Apparatus and method for laser machining in a non-reactive environment 失效
标题翻译：在非反应性环境中激光加工的装置和方法
公开(公告)号：EP0102835A3
公开(公告)日：1985-12-18
申请号：EP83305080
申请日：1983-09-01
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Lessman, Gerald George
IPC分类号： B23K26/12
CPC分类号： B23K26/123 , B23K26/1437 , B23K26/1462 , B23K26/706
摘要： Apparatus and method are disclosed for machining and, in particular, welding a work piece in an environment comprised of a gas non-reactive to the material of the work piece to minimize the contamination of the welds effected on the work piece. In an illustrative embodiment of this invention, there is provided a welding chamber for receiving the work piece and for establishing the welding environment therein. The welding chamber has an input port disposed in a bottom portion thereof, that is coupled to means in the form of a controllable pump for directing or pumping the non-reactive or inert gas, e.g. argon, through the input port and into the welding chamber. The welding chamber also includes an output port, whereby the non-reactive gas may escape from the welding chamber. A diffuser plate distributes the non-reactive gas substantially uniformly across the cross section of the welding chamber, whereby a laminar flow of the non-reactive gas is directed over the work piece and is permitted to escape through the output port.

2. 发明授权

EP0102834B1 Pulsed laser machining apparatus 失效
标题翻译：脉冲激光加工设备
公开(公告)号：EP0102834B1
公开(公告)日：1989-07-19
申请号：EP83305079.2
申请日：1983-09-01
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Bucher, George David
IPC分类号： B23K26/06
CPC分类号： B23K26/0673 , B23K26/042 , B23K26/043 , B23K26/0613 , B23K26/067

3. 发明公开

EP0238171A1 Laser welding head for sleeve-to-tube welding 失效
标题翻译： Laserschweisskopf zum Verschweissen einer Muffe mit einem Rohr。
公开(公告)号：EP0238171A1
公开(公告)日：1987-09-23
申请号：EP87300523.5
申请日：1987-01-21
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Hawkins, Phillip Joseph , Toth, Vincent Andrew , Kasner, William Henry , Bruck, Gerald Joseph
IPC分类号： B23K26/00
CPC分类号： B23K26/106 , B23K26/042 , B23K26/28 , F28F2275/067
摘要： A laser welding head rotates for welding a sleeve within a tube by fusing the interface between the sleeve and tube with a laser beam uses a focusing lens for focusing a laser beam transmitted through a housing which is inserted inside of the sleeve; a welding mirror directs the focused beam out of the housing and into contact with the sleeve, and is maintained a predetermined distance from the inside surface of the sleeve. Shield gas is supplied to the weld area and passes about the periphery of the focusing lens for cooling the focusing lens and the welding mirror. A recessed aperture is provided within the discharge outlet to prevent molten material from the weld site from splattering into the housing and onto the mirror or lens. Multiple discrete weld paths or continuous overlapping helical weld paths at each end of the sleeve are preferred. The laser delivers 500 to 700 watts to the weld area, and causes a fusion width of at least .1125 mm and penetrates the tube to a depth of about 6 mm.
摘要翻译：通过使套管膨胀以紧密地配合在管内，将套筒焊接在管内，将具有聚焦透镜，反射镜和弹簧偏压焦点的焊头定位在邻近焊接区域并将高功率激光束引导到焊接头。将梁聚焦并反射到焊接区域上，并且以焊接熔融路径周围的4.0和7.5rpm之间的速度旋转焊头，以将套管焊接到管上。焊接区域用屏蔽气体屏蔽，激光束工作在500至700瓦特之间。

4. 发明公开

EP0102834A2 Pulsed laser machining apparatus 失效
标题翻译：脉冲激光加工装置。
公开(公告)号：EP0102834A2
公开(公告)日：1984-03-14
申请号：EP83305079.2
申请日：1983-09-01
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Bucher, George David
IPC分类号： B23K26/06
CPC分类号： B23K26/0673 , B23K26/042 , B23K26/043 , B23K26/0613 , B23K26/067
摘要： @ Apparatus and method is disclosed for directing a controlled number of laser pulses onto a work piece to be machined. More specifically, the laser machining apparatus includes an excitable laser and an excitation lamp for continuously exciting the laser to emit a sequence of laser pulses. The application of the laser pulses to the work piece is controlled by an innercavity shutter that is opened to permit a precise number of pulses to be directed onto the work piece. The frequency (REP RATE) and pulse width of the laser pulses are controlled by the excitation lamp and, in turn, are set to create a progressive weld of significant depth and structural integrity. In particular there is provided control means for counting the number of laser pulses applied to a machining site of the work piece, whereby a known controllable quantity of energy is imparted to each site. To this end, the counting of the laser pulses begins after the completion of a laser pulse, whereby the actuation of the innercavity shutter is not synchronized to the computer but rather to the laser emission so that only whole laser pulses will be applied to the site.

5. 发明授权

EP0238171B1 Laser welding head for sleeve-to-tube welding 失效
标题翻译：激光焊接头用于套管焊接
公开(公告)号：EP0238171B1
公开(公告)日：1992-04-15
申请号：EP87300523.5
申请日：1987-01-21
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Hawkins, Phillip Joseph , Toth, Vincent Andrew , Kasner, William Henry , Bruck, Gerald Joseph
IPC分类号： B23K26/00
CPC分类号： B23K26/106 , B23K26/042 , B23K26/28 , F28F2275/067

6. 发明授权

EP0102835B1 Apparatus and method for laser machining in a non-reactive environment 失效
标题翻译：用于激光加工在非反应性环境中的装置和方法
公开(公告)号：EP0102835B1
公开(公告)日：1989-12-06
申请号：EP83305080.0
申请日：1983-09-01
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Lessman, Gerald George
IPC分类号： B23K26/12
CPC分类号： B23K26/123 , B23K26/1437 , B23K26/1462 , B23K26/706

7. 发明公开

EP0102834A3 Pulsed laser machining apparatus 失效
标题翻译：脉冲激光加工设备
公开(公告)号：EP0102834A3
公开(公告)日：1986-01-15
申请号：EP83305079
申请日：1983-09-01
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Bucher, George David
IPC分类号： B23K26/06
CPC分类号： B23K26/0673 , B23K26/042 , B23K26/043 , B23K26/0613 , B23K26/067
摘要： @ Apparatus and method is disclosed for directing a controlled number of laser pulses onto a work piece to be machined. More specifically, the laser machining apparatus includes an excitable laser and an excitation lamp for continuously exciting the laser to emit a sequence of laser pulses. The application of the laser pulses to the work piece is controlled by an innercavity shutter that is opened to permit a precise number of pulses to be directed onto the work piece. The frequency (REP RATE) and pulse width of the laser pulses are controlled by the excitation lamp and, in turn, are set to create a progressive weld of significant depth and structural integrity. In particular there is provided control means for counting the number of laser pulses applied to a machining site of the work piece, whereby a known controllable quantity of energy is imparted to each site. To this end, the counting of the laser pulses begins after the completion of a laser pulse, whereby the actuation of the innercavity shutter is not synchronized to the computer but rather to the laser emission so that only whole laser pulses will be applied to the site.

8. 发明公开

EP0102835A2 Apparatus and method for laser machining in a non-reactive environment 失效
标题翻译：装置和一个非反应性环境中进行激光加工方法。
公开(公告)号：EP0102835A2
公开(公告)日：1984-03-14
申请号：EP83305080.0
申请日：1983-09-01
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Miller, Richard Albert , Lessman, Gerald George
IPC分类号： B23K26/12
CPC分类号： B23K26/123 , B23K26/1437 , B23K26/1462 , B23K26/706
摘要： Apparatus and method are disclosed for machining and, in particular, welding a work piece in an environment comprised of a gas non-reactive to the material of the work piece to minimize the contamination of the welds effected on the work piece. In an illustrative embodiment of this invention, there is provided a welding chamber for receiving the work piece and for establishing the welding environment therein. The welding chamber has an input port disposed in a bottom portion thereof, that is coupled to means in the form of a controllable pump for directing or pumping the non-reactive or inert gas, e.g. argon, through the input port and into the welding chamber. The welding chamber also includes an output port, whereby the non-reactive gas may escape from the welding chamber. A diffuser plate distributes the non-reactive gas substantially uniformly across the cross section of the welding chamber, whereby a laminar flow of the non-reactive gas is directed over the work piece and is permitted to escape through the output port.

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