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Table 2 Average surface roughness (Ra) values of the alloys ground with the corresponding SiC type emery papers

From: Effect of oxidation and surface roughness on the shear strength of single-lap-joint adhesively bonded metal specimens by tension loading

Surface treatment

Ra (ÎĽm)

Alloy

Grinding 60 grit SiC

1.88 ± 0.52

AA6061

1.88 ± 0.52

AA7075

1.45 ± 0.52

AISI 1080

Grinding 120 grit SiC

1.01 ± 0.15

AA6061

1.01 ± 0.15

AA7075

0.86 ± 0.07

AISI 1080

Grinding 240 grit SiC

0.83 ± 0.05

AA6061

0.83 ± 0.05

AA7075

0.62 ± 0.09

AISI 1080

Grinding 320 grit SiC

0.6 ± 0.07

AA6061

0.6 ± 0.07

AA7075

0.47 ± 0.05

AISI 1080