Abstract:
A clad member is made up of a plate-like clad base material having on its surface a recessed portion, and solidified portions of a metallic material which is different in kind from the clad base material. The solidified portions are disposed in the recessed portion at a distance from each other and are bonded with the clad base material through melting. The clad member is manufactured by forming an elongated recessed portion on a surface of a plate-like clad base material. The recessed portion is filled with a comminuted metallic material which is different in kind from the clad base material. A laser beam is irradiated onto a plurality of regions which are separated from each other in a longitudinal direction of the recessed portion such that partly melted portions of the comminuted metallic material are generated to thereby bond the comminuted metallic material with the clad base material. The melted portions are solidified. The remaining non-molten portions of the comminuted metallic material are removed.
Abstract:
A method for manufacture of at least one micronozzle in an aerostatic bearing, wherein at least one hole is placed into a compacted bearing surface from porous sintered material by means of a laser beam and disposed so as to be distributed across the surface. The holes distributed across the compacted bearing surface constitute micronozzles of an aerostatic bearing.
Abstract:
Laser perforation of all types of paper provides paper having sufficient strength characteristics to survive stresses imposed during handling, such as experienced in sheet feed processes. The paper so perforated is readily separable along the perforation line when separation is desired. Carbonless paper products particularly benefit from use of a laser in perforation. The paper, capsule, and capsule fill material are vaporized during the laser process, thus forming clean holes and leaving little residual material on the paper.
Abstract:
To render more economical the manufacture of galvanized bar segments 10 illustratively used for three-dimensional frameworks, the components of the bar segments 10, namely the hollow bar 11 and the end pieces 12, are galvanized before being assembled. The ring welds between the galvanized components 11, 12 are implemented by laser welding. Because of the high energy density of the laser welding beam and on account of the narrow ring-weld seams 18 so formed, a zinc coating 24 supplied from the zinc coats 22 of the adjacent components 11, 12 is created during welding and covers each surface 25 of the ring-weld seams, as a result of which, following welding, the bar segment 10 also is provided with a zinc coating 24 covering the surfaces 25 of the ring-weld seams protecting them against corrosion.
Abstract:
Processes for preparing same for demateably interconnecting arrays of contact pads. The connector has a preformed sheet-form member provided with a series of apertures through each of which an electrically conductive plated metal deposit extends. An integral end of the deposits protrudes outwardly beyond a surface of the sheet-form member, forming contact surfaces for demateably engaging the pads.
Abstract:
A laser, wire stripper for removing a selected area of insulation from opposite sides of an insulated wire. The stripper comprises an improved, workpiece support assembly that allows wire to be fed fromthe sides, a laser with top and bottom focusing heads for vaporizing the insulation, and a ducting assembly for removing gases and debris generated by the vaporization of the insulation.
Abstract:
A method and apparatus for controlling the stripping of paint and the like from a substrate is disclosed. Embodiments for controlling the stripping of paint and the like by pulses of high intensity radiant energy are described. The control is accomplished by illuminating the area of the paint and the like which is to be stripped and subjecting the light reflected therefrom to spatial spectral dispersion. The spatial spectral dispersion is sensed and an electronic signal representative thereof is generated. The generated electronic signal is compared to a pre-recorded electronic signal representative of the spatial spectral dispersion of light reflected from the paint and the like which is to be stripped before each pulse of high intensity radiant energy and the pulse is applied only upon such comparison resulting in a substantial match. Methods and means for normalization of the sensed spatial spectral dispersion and for utilizing mismatch comparisons are disclosed.
Abstract:
An apparatus for producing holes in a workpiece by means of a laser beam and for coating both sides of disc-shaped workpieces which incorporates two band members guided above one another at a spacing along a predetermined path. This spacing of the band members is smaller than the height of the workpieces. One of the band member has a smooth surface and the other an adhesive surface, and two coating locations are arranged such that one is before and the other behind the aforementioned predetermined path.
Abstract:
A process for perforating a urethane anti-static filled coating of a metallic drum core with clean holes of substantially uniform size and shape. The process includes placing an electrically conducting absorbing tape between the urethane coating and the metallic core to absorb the urethane melt generated by the laser cutting process. The coated core after being placed in a fixture, is subjected to a laser beam generated by a pulsed CO2 gas laser that passes through a set of rotary optics capable of spinning the beam in circles as it passes through a gas jet/nozzle assembly before beam impact with the coating. Through the use of conductive tape a good ground may be maintained between the anti-static filled coating and the metallic core to prevent static build up on the outer surface of the drum.
Abstract:
The invention relates to a method which enables zones (10, 11) of a printed circuit (6) to be precisely and quickly exposed, both on the conductors (3) and to the side of these.Work is carried out on a blank provided with an insulating coating (4, 5) which may cover its entire surface. The coating is acted upon the zones (10, 11) to be exposed by means of a machining head having one or more laser beams and being controlled by a computer which receives the coordinates of the zones. The power of the beam is modulated differently on the conductors (3) and to the side of them, just as it is to make holes in the circuit or cut it along its periphery.The invention applies to the production of flexible printed circuits.