Researches on Brass Containing Pb (Part 2)

By measuring cutting Forces in case of cutting rolled Pb-brass, A (cutting force at the unit depth of cut) and n in the experimental equation R= atn (R= cutting force, t= depth of cut) were calculated. The results are ;1) The difference between cutting forces, Whether it is parallel or rectangular to the direction of rolling, was scarcely notable.2) The effect of Pb on cuting force is very large, but the effect on rolling reduction is not so remarkable.3) Mono-phase alloys of α or β are hard to be cut and the standard structure of 4:6 brass. (α+β) is easy to be cut.4) The value of n is small in the cases of Pb-brass and high reduced plate, and α-brass and β-brass confer high values.