... 845 (Part II); 43, 19 65; Ind. Anmger, 87, 10 33 (Part III), 51, 19 65. 11 . Sata, T., Chairman, Working Group on Machinability in Japan, Bull. 3 (1) , Japan Society of PrecisionEngineers, Tokyo, 19 69.Volume ... importance of workpiece softening on machinability, Ann. CIRP, 18 ,623, 19 69.9. McKenna, P. W., U.S. Patent 2 ,11 3,353, 19 38. 10 . Opitz, H. and Koenig, W., Ind. Anzieger, 87, 46 (Part I), 26, 19 65; ... No. 1, 39, 19 59; No. 2, 11 9, 19 59; No. 4,230, 19 59. 11 . Ciesko, R., The Effects of Water Soluble Cutting Fluids on Operating Conditions in Machining, Tech. Pap.EM75-380, American Society of...