Introduction to laser beam welding pdf file

Introduction the laser is among the most important inventions of the twentieth century. The investigations lead to the conclusion that partially melted wire segments result at certain parameter relations which hinder the formation of a. Electron beam welding ebw laser beam welding lbw since there is no arc involved in the electroslag welding process, it is not exactly an arc welding process. There are several advantages to this new type of y joint, such as higher. An introduction to laser technology and its applications. Industrial applications of high power co2laser welding. Process development for the laser beam welding of metals has initially tended to be somewhat empirical in nature. So we can independently chain the focal length axis as well as the work piece axis in order to be. Ppt laser beam machining powerpoint presentation free.

Red light fast positioning, ccd display and microscope optional. The principle of conduction limited welding is simple. Engineering, management and supervisory staff who need to understand the basic principles of laser material processes, with a focus on laser beam welding of metal and plastic. Adjustable working table allows welding from small size to big of work piece. To form a laser weld, the laser beam is brought to focus on or very near the. Laser beam welding in vacuum overview of thickplate steel. Up to date the evaporation process in laser beam welding of alloys with volatile elements is not completely understood. The laser welding process for 304 stainless steel by pulsed and continuous co 2 laser,had been studied, where all of t,iz. The laser beams have enough energy and when it strikes the metal pieces produce heat that melts the material from the two metal pieces and fills the cavity. This machine setup allowed the first fundamental research of the laser beam welding in thick plate application using both welding positions pa1g and pc2g. Theodore maiman, the inventor of the first working laser, was quoted.

We move on to the introduction about laser beam welding. Pdf the study of co2 laser welding for stainless steel. Laser beam welding equipment, principle, working with. Handbook of laser welding technologies request pdf. Laser welding fundamentals the diode laser is a wellestablished laser technology that been used for many plastic welding applications, notably in the automotive industry for welding the rear light housing.

Since its introduction in 1960, the laser has made possible a countless number of scientific, medical, industrial, and commercial applications. The laser beam ir radiates the material surface and heat. Laser welding equipment laser welding machine features the application materials like aluminium, stainless steel, steel plate, iron plate and other metal and alloy. Often, these beams are within the visible spectrum of light. Laser beam welding is a fusion welding process in which two metal pieces are joined together by the use of laser. Process stability during laser beam welding with beam. For convenience of discussion, it is grouped with arc welding processes. The first paper provides an introduction to the subject of co2 laser welding. Laser beam welding is a welding process that utilizes an excited solid, doped rod or gas to emit a single wavelength coherent source of light.