摘要:
In laser welding, the welding area is depicted coaxially in relation to the laser beam (3) through the laser optics (4), wherein not only a triangulation line and a grey or colour image of the solidified weld is recorded but also the process radiation of the welding process. From these three image elements, an optimum quality assessment of the welding process and of the weld can be made.
摘要:
An icebreaker hull having laterally projecting hull components which define inclined upwardly and rearwardly sloped faces arranged in part above and in part below the vessels normal water line, and each hull component further including a longitudinally extending face cooperating with the inclined face to define a cutting edge. At least a second pair of similar projecting hull components adjacent the first components to define a second cutting edge downstream of the first cutting edge. One or more of these hull components may be movable from and to positions where they are stowed in streamline relationship to the hull.
摘要:
In laser welding, the welding area is depicted coaxially in relation to the laser beam (3) through the laser optics (4), wherein not only a triangulation line and a grey or color image of the solidified weld is recorded but also the process radiation of the welding process. From these three image elements, an optimum quality assessment of the welding process and of the weld can be made.
摘要:
A device and method for cleaning and drying workpieces in a treatment vessel in which a reduced pressure can be provided. During the cleaning process, a liquid bath is formed in the treatment vessel (1), said liquid bath at least partially surrounding the work pieces, and cleaning fluid and optionally a gaseous medium are introduced into the treatment vessel under excess pressure via a spray unit. The workpiece support moves up and down or rotates so that the work pieces are subjected alternately to different cleaning processes in the liquid bath and a gas space located above said liquid bath.
摘要:
An optical measuring device for monitoring a joint seam, joining head and laser welding head. The optical measuring device monitors a joining region in a workpiece and has at least one light-section device with a first light source for casting a light fan in the direction of the workpiece to be joined, making a triangulation light line within the joining region which intersects a joint seam. An illumination device with a second light source homogeneously illuminates the joining region. A first optical sensor with a first observation beam path for spatially resolved imaging of the triangulation light line is projected onto the joint seam. A second optical sensor with a second observation beam path for spatially resolved imaging of the joint seam is coaxially coupled with the first observation beam path. The readout rate of the first and second optical sensors is >1 kHz and
摘要:
For assessing the position and quality of joins a combined image of a join including a light line image and a grey value image is taken in the same sensor, but in two different regions of the sensor. The grey value image is evaluated to detect the quality of the join. This allows both the position and the quality of the join to be detected in a simple way.
摘要:
A method for joining a workpiece by means of a welding head, in which at least one line of light is generated on a workpiece, which crosses a joint line at a site to be joined and a joint seam generated at a joined site after processing. The lines of light are imaged at the site to be joined and at the joined site in order to generate reference data relating to the geometry of the site to be joined and measurement data relating to the geometry of the joined sites. The reference data and the measurement data are then compared at one and the same workpiece site before and after processing, in order to determine the geometry of the joint seam independently of the geometry of the site to be joined.
摘要:
A method and apparatus for detecting a joint between workpieces is provided. At least one light line is recorded by the light section method to detect the three-dimensional course of the joint and a grey-level image of the joint is also recorded. The grey-level image is evaluated to assess the quality of the joint.
摘要:
For assessing the position and quality of joins a combined image of a join including a light line image and a grey value image is taken in the same sensor, but in two different regions 20, 22 of the sensor. The grey value image is evaluated to detect the quality of the join. This allows both the position and the quality of the join to be detected in a simple way.
摘要:
A method and apparatus for detecting a joint between workpieces is provided. At least one light line is recorded by the light section method to detect the three-dimensional course of the joint and a grey-level image of the joint is also recorded. The grey-level image is evaluated to assess the quality of the joint.