Technology of patternmaking, study of molding sands and thei

This course provides a simple and practical understanding of patternmaking and molding sand used in foundry operations. Participants learn about different types of patterns and their role in producing accurate metal castings. The course explains pattern materials, pattern allowances, and basic methods of pattern construction. It also introduces different types of molding sands and their important properties. Participants learn how sand properties such as strength, permeability, flowability, and moisture affect casting quality. The course covers common methods used to prepare and condition molding sand for casting work. Different testing methods are explained to check the quality and suitability of molding sand. Participants learn how to identify common sand-related casting problems and their causes. Practical knowledge is provided on selecting the right pattern and molding sand for different casting requirements. Overall, the course helps participants understand patternmaking and molding sand testing for producing better-quality and defect-free castings.