SCIENTIFIC REPORTS OF HIGHER SCHOOLS, MACHINE CONSTRUCTION AND INSTRUMENT CONSTRUCTION (SELECTED ARTICLES)
Abstract
CONTRIBUTION TO THE THEORY OF PACKING FOUNDRY MOLDS, by G. F. Balandin: The preparation of sand molds with a clay-water binder is described and the mechanism of packing the mixture is analyzed. Equations are derived for the determination of the energy or work expended in filling a 250-x 250-x 100-mm mold box with a mixture containing 15% clay and 5.3% water. Good correlation was obtained between calculated and experimental data. EVALUATING THE PRECISION OF CASTINGS, by Yu. A. Vorobyev: The development of modern machine construction is characterized by refinements in the precision of the processing of castings, from the cast billet to the machined component. The extension of engineering standards established for machining operations to the foundry industry are discussed. Results are reviewed of an investigation for the purpose of establishing precision standards for castings of non-ferrous alloys.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 10, 1961
- Accession Number
- AD0257653
Entities
Organizations
- National Air and Space Intelligence Center