However, the low working efficiency in traditional laser cladding has greatly limited their further application in surface engineering industries. Circular laser beam with different diameters was the dominated modes of various laser devices in the past decades. But circular-beam laser cladding has inherent limitation. Increase of laser power or laser scanning speed could promote cladding efficiency, but it also increases dilution rate or causes severe crack initiation . Besides, overlap of cladding tracks significantly increased the residual stress of coating layer, which made it difficult to fabricate dense and defect-free composite coatings . So it is particularly urgent to improve the cladding efficiency in another
way. It has reported cladding efficiency could be greatly increased in
laser induction hybrid rapid cladding (LIHRC) with elliptical laser
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