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摘要
The overlapping effects on surface roughness are studied when samples are treated by laser shock peening (LSP). Surface roughness of overlapped circular laser spot is calculated by ISO 25178 height parameters. The usually used overlapping styles namely isosceles-right-triangle-style (AAP) and equilateral-triangle-style (AAA) are carefully investigated when the overlapping degree in x-axis (eta(x)) is below 50%. Surface roughness of isosceles-right-triangle-style attains its minimum value at eta(x) of 29.3%, and attains its maximum value at eta(x) of 43.6%. Surface roughness of equilateral-triangle-style attains its minimum value at eta(x) of 42.3%, and attains its maximum value at eta(x) of 32%. Experimental results are well consistent with theoretical analysis.
