Test report no. PLBO/15: field tests of PERPRO tips grade RD107 copy turning steel B.S.4

摘要

SUMMARYA batch of 232 Rammer Butt Stems were machined at P. and V. (Miningand Engineering) Ltd., with alternate tips of SIT and RD 107. The resultsshowed that under the same cutting conditions the RD107 gave more pieces peredge than did the S1P. It is suggested that further field trials should becarried out to confirm this result.