VOL. 1 (1957/58)
SYSTEMATIC
testing. Material can be used for cutting light and non-ferrous metals, alloys, and steel, provided cutting is uninterrupted. Material can replace IO to 15% of costly sintered carbides. Improvement of the Impact Resistance of Cermets. A. C. Pezzi and H. P. Kling. Wright Air DeMaterials Laboratory, velopment Center, WADC Technical Report 56-329. Apr. 1957, 27 pp. (TL507 Un3.18w Vis.) Application to KI~IB bars of 0.018 in. of electrodeposited Ni, bonded by a suitable vacuum heat treatment, raised the impact strength from values of 2.56 and 3.36 in.lbs. at room temperature and 18oo’F respectively to values of 21.48 and 18.96 in.-lbs. at the sametemperatures. The Relation Between Modulus of Elasticity and Abrasion Resistance in Refractory Materials. C. Storey and J. Mackenzie. British Ceramic Society, Transactions, v. 56, Jan. 1957, p. 14-21. Refractory Linings of Rotary Furnaces for Bloomery Process. (in Czech.) Eugen Viktora and Vaclav Zavesky. Hutnicke Listy, V. 12, May 1957, p. 417-423. Completely sintered materials give the greatest durability. Directions on how to increase service life of linings. Nitride-Bonded Silicon Carbide Bridges Gap Between Metals and Ceramics. W. L. Wroten. Product Engineering, v. 28, Feb.
1957, p. 135-139.
Shape and size factors, surface characteristics properties at elevated temperatures; application and cost data; heat, abrasion, and corrosion resistance. 6.5. Abrasives qbrasives and Wear. Lubrication, v. 43, Feb. 1957, p. 13-24. Bearing design; bearing damage; abrasive materials and their effects; elimination of abrasives from oil systems. New Techniques in Coated Abrasive Machining Methods. Hugh N. Dyer. Tooling and Production, v. 22, Jan. 1957, p. 63-68.
ABSTRACTS
Variables affecting the belt grinding process and their control. Includes backing support, abrasives, and grinding fluids. Hydraulic Abrasive Blasting of Metal Parts. (in Russian) N. G. Markov, F. V. Kisliakov, and M. M. Trukhachev. Vestnik Mashinostroeniia, v. 36, no. g, Sept. 1956, p. 56-57. Describes a machine designed for treating metallic surfaces with liquids carrying an abrasive material. The treatment is claimed to be free from the usual defects of other machining methods, and to improve the fatigue strength and corrosion resistance of the part treated. The Uses of Diamond Abrasives in Metallographic Polishing. L. E. Samuels. Industrial Diamond Review, v. 16, Dec. 1956, p. 233-237. Relief between constituents and preservation of edges; retention of non-metallic inclusions and constituents; polishing special materials. An Analytical Kenji Sato.
Study on Grinding Resistance. Technology Reports, TBhoku ~?liVWSity, v. 21, no. I, 1956, p. ‘47-177. Magnitude and direction of force acting on a. single grain; scratch test by single grain; formula for grinding resistance; measuring devices; experimental data. Preparation for Electroplating With Coated Abrasives. Warren K. Seward. Plating, v. 44, Jan. 1957. P. 43-46. Role of contact wheel; belt speed; selection, handling, and storage of abrasives; lubricants ; some operating techniques. How to Select and Use Contact Wheels. Warren K. Seward. Products Finishing, v. 21. July 1957, p. 24-35. Discusses contact wheels for abrasive belt polishing from the standpoint of application; proper techniques for economical operation. Coated Abrasives in Metal Finishing. J. Zoethout. Product Finishing, v. 10, July 1957. P. 53 + 6 pages. Applications of backstand machines; types of abrasive belts available ; contact wheels.
7. SURFACES AND SURFACE 7.1. General Steam Atmosphere Heat Treatment. Canadian Metalworking, v. 20, June 1957, p. 50-52. Heat treatment with the use of steam atmos-
2%
TREATMENT
phere and electric heat can provide advantages such as improved wear resistance, longer life, better machinability, and greater corrosion resistance. Typical applications in both ferrous and non-ferrous fields are discussed.