The invention discloses
laser-array pore molding devices and a method. The steps of the invention includes that, firstly,
pore diameter, pore distance and
caliber parameter of a pore plate are set, and a
processing file is produced, secondly,
laser power, pulse width,
pulse repetition frequency and pulse count are set, thirdly, the parameter of
light beam location scanning is set, fourthly, work-pieces are located, a
visual system is located, and vacuum negative pressure absorbs a probe guide plate, fifthly, pressure and flow capacity of opening assistant gas are set, the
processing is started, finally, the
pore diameter, the pore distance and the
caliber parameter are measured after the finishing of the
processing. The
laser-array pore molding devices include an
ultraviolet solid laser with high repetition rate and
ultrashort pulse, a laser beam generator, a collimation beam-expanding device, a
shutter, a
light beam location scanning device, a CCD visual location
system, an XYZ displacement working platform, and a vacuum negative pressure absorbing-sheet frame. The invention has the advantages that the disadvantages of low efficiency, easy damage of a 'punch', changeable
pore diameter and the like which exit in the present mechanical
punching manner are overcome, dynamic digital hologram is directly pressed on the surface of the material of
noble metal commemorative coins, thereby ensuring the esthetics of the commemorative coins.