Laser cladding method and device for implementing same
OwnerYury Alexandrovich Chivelinventor
Life of this patent
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Abstract
A method and device for laser cladding by independently heating the cladding material and the surface of the workpiece consist in formation of the series of parallel annular laser beams, possibly different wavelengths, with an adjustable distribution of laser radiation power across the annular beams. The annular beams are transformed into a series of conical beams which are separately focused along a single optical axis, along which the cladding material is fed. The device can be supplemented with a cylindrical mirror for the multipass laser radiation through the stream of cladding material with the possibility of the laser radiation return to the laser resonator.
Claims7
A laser cladding device, comprising:
- a laser, which is optically linked to a system for forming conical beams, a focusing lens, a rotating mirror with an opening through which a tube is passed for feeding a cladding material, wherein the laser cladding device further includes an optical system for forming a series of annular laser beams from a circular laser beam with an adjustable distribution of a laser radiation power across the annular laser beams and a system of conical focusing mirrors of the system for forming conical beams, a focus of the focusing lens and foci of the conical focusing mirrors of the system for forming conical beams are located along a single optical axis along which the cladding material is fed;
- wherein the optical system for forming a series of annular beams further comprises a multifacet reflective waxicon and an adjustable beam expander;
- the conical beams are focused along the single optical axis to provide independent heating of sections of the cladding material and a surface of a workpiece.
Dependencies are inferred from the claim text.