EFFECT OF SAND VARIABLES ON DIMENSIONAL ACCURACY OF Al-4%Cu ALLOY CASTINGS PRODUCED BY V-PROCESS

19850735
Journal: Transactions of the American Foundrymen's Society V 93 Paper 85-41 P 303-306, 1985 (4 pages)
Author: J. L. Gaindhar, C. K. Jain and K. Subbarathnanmaiah

Authors review sources of variation from dimensional specifications that are frequently experienced in V-Process molding Al-4%Cu alloy castings. In this study, the molding sand and associated parameters have been investigated to determine their effect on as-cast dimensional accuracy. The authors determined that sand grain shape, size and distribution have a pronounced effect on dimensional accuracy. Also, that V- Process parameters such as vibration frequency, vibration time, etc., all significantly affect dimensional accuracy. They suggest a system through which these variables can be better controlled, and document results of its application.