利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

670 条记录 (耗时 0.022 秒)

    LASER WELDED JOINT AND LASER WELDING METHOD
    4.
    发明公开
    LASER WELDED JOINT AND LASER WELDING METHOD 审中-公开

    公开(公告)号：EP3195973A4

    公开(公告)日：2018-07-11

    申请号：EP15841515

    申请日：2015-09-17

    申请人： NIPPON STEEL & SUMITOMO METAL CORP

    发明人： NAITO YASUAKI ,  MIYAZAKI YASUNOBU

    IPC分类号： B23K26/28 ,  B23K26/21 ,  B23K26/244 ,  B23K101/18 ,  B23K103/04

    CPC分类号： B23K26/067 ,  B23K26/035 ,  B23K26/0676 ,  B23K26/244 ,  B23K2201/18 ,  B23K2203/04 ,  H01L21/67144 ,  H01S3/0014 ,  H01S3/131

    摘要： The present invention has as its object to provide a laser welded joint excellent in joint strength preventing a bead from cracking and comprised of exactly the number of weld beads required for joint strength and a laser welding method for the same in overlay laser welding of steel sheets forming multiple ring-shaped weld beads. The present invention is a laser welded joint excellent in joint strength preventing a bead from cracking and comprised of exactly the number of weld beads required for joint strength in overlay laser welding of steel sheets forming multiple ring-shaped weld beads, produced by a step of overlaying a plurality of metal sheets and forming a first weld bead and a step of firing a laser beam to successively form a further two or more weld beads at the outside of the first weld bead by laser irradiation, the surface hardness of the weld bead increasing from the inside bead to the outside bead.

    PROCESS DIAGNOSTIC SYSTEM FOR AND METHOD OF PERFORMING LASER SHOCK PEENING ON A TARGET WITH A FLUID FLOW PATH SANDWICHED BETEEN A TRANSPARENT TO LASER LIGHT SOLID MEDIUM AND THE TARGET
    6.
    发明授权
    PROCESS DIAGNOSTIC SYSTEM FOR AND METHOD OF PERFORMING LASER SHOCK PEENING ON A TARGET WITH A FLUID FLOW PATH SANDWICHED BETEEN A TRANSPARENT TO LASER LIGHT SOLID MEDIUM AND THE TARGET 有权
    工艺诊断系统及在激光轻质固体介质上透明的流体流动路径与目标之间执行激光冲击的方法

    公开(公告)号：EP2986410B1

    公开(公告)日：2018-03-07

    申请号：EP14723127.8

    申请日：2014-04-17

    申请人： University Of The Witwatersrand, Johannesburg

    发明人： GLASER, Daniel ,  POLESE, Claudia

    IPC分类号： B23K26/00 ,  B23K26/14 ,  C21D7/06 ,  C21D10/00

    CPC分类号： C21D10/005 ,  B23K26/02 ,  B23K26/03 ,  B23K26/067 ,  B23K26/146 ,  B23K26/1476 ,  B23K26/18 ,  B23K26/356 ,  C21D1/09 ,  C21D7/06

    摘要： The invention is concerned with a system for performing Laser Shock Peeing on a target (100). The system includes a device (10) for generating and transmitting a laser pulse to the target (100) and a fluid source for supplying a fluid into a fluid flow path arranged between an inlet (20) and an outlet (22.1, 22.2). A solid medium (14), which is transparent to incident laser light (12), is located in the laser path so as to allow the laser pulse to pass through it. In use, the fluid flow path is sandwiched between the solid medium (14) and the target (100) during the laser shock peening process so that the fluid is in direct contact with the solid medium (14) and the target (100), thereby eliminating any air-fluid interface in the travel path of the laser pulse. The fluid is also supplied into the fluid flow path having a constant thickness such that a second shock event through cavitation in the fluid layer occurs upon the collapse of a plasmalvapour bubble generated after the laser pulse striking the target. The invention also concerns a method of performing Laser Shock Peeing using the system in accordance with the invention and, in particular, the use of the first bubble oscillation period to determine the amount of energy being delivered to the target (100). The monitoring of the energy being delivered to the target (100) provides for process diagnostics during the LSP procedure.