Abstract: A Method of manufacturing a sintered structure on a substrate is provided. To this end, a particle-charged liquid is provided on the substrate by means of a (multiple print head) ink jet printer. Subsequently, the liquid is evaporated and the particles contained therein are sintered layer by layer. Said layer-by-layer laser sintering enables 3-dimensional products having a relatively high dimensional accuracy to be manufactured. Preferably, evaporation of the liquid also takes place by means of (the same or) a laser. The liquid preferably comprises particles of glass, ceramics or metal compounds in the form of a sol-gel solution or a colloidal sol.

Abstract: A method of manufacturing a color display tube comprising a display window having a display screen, a flat tensed shadow mask 2 in which the shadow mask 2 is provided with strips 9, 14, 15, 16, along its edges the color display tube has been assembled a test pattern is displayed on the display screen via the shadow mask 2, and certain strips are irradiated using an electron beam or a laser beam, to obtain a desired test pattern by aligning the shadow mask 2 relative to the display screen.

Abstract: A magnetic recording head may be assembled from laminar plates of ferromagnetic material which are welded together by spot welds to form a core stack. The core stack is welded by spot welds (E, F, G) to a base plate (16). The ferromagnetic material is typically an alloy of Si, Al and Fe and tends to produce stress cracks around the areas of the welds. In order to overcome this problem, the edges of the plates, at least around the areas of the welds, and provided with a layer of ductile metal such as Ni, Fe or Mo. The layer is between 5 and 500 .mu.m thick. The depth of the welds is arranged to lie substantially within the ductile metal layer.