Table 4 Polishing steps of the copper specimens for the metallographic test.

From: Characterization of joining copper rods by upset technique and investigating the effect of preheat treatment on the weld characteristics

Step

Surface

Suspension

rpm

Force (N)

Time (min)

DP Coating Prep Polish

MD-Mol

DiaPro Mol

150

150

4

OP Suspensions

OP-Chem

Iron (III) nitrate

150

90

1

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