Note for Basic Manufacturing process - BMP By rahul dhakate

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Course Objectives BMEL 306 MANUFACTURING PROCESS II (3-0-2-4) Total Hrs.42 Pre-requisite: BMEL208 MANUFACTURING PROCESS I Course Objectives: 1. To understand basic material properties for bulk material shaping 2. To provide basic principles of metal flow and design considerations for manufacturing sand casting 3. To provide details of different joining processes for large scale manufacturing 4. To enable understanding basic concept and principles of rolling forging and sheet metal working 5. To use state of the art newer technologies including powder metallurgy as well as plastic as widely accepted new age material for mass production

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Course Outcomes Upon successful completion of the course, 1. Apply basic knowledge related to foundry and casting design. 2. Understand the basics of manufacturing processes such as forging, rolling, extrusion, wire drawing techniques and powder metallurgy. 3. Select appropriate joining processes in industries for joining different materials, understand defects and select inspection techniques 4. Understand applications and processing of plastics.

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Unit I----8Hrs • Casting process: introduction, pattern making: types, materials used, pattern making allowances, colour codes core making: - types, core material and its properties. recent development in pattern making Molding: types of sand moulds, molding sand composition, molding sand properties, molding machines.

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Introduction • Casting is one of the earliest metal shaping methods known to human being. • It generally means pouring molten metal into a refractory (resistant to heat) mould (a shaped cavity used to give a definite form to molten metal) with a cavity of the shape to be made, and allowing it to solidify. • When solidified, the desired metal object is taken out from the refractory mould by either breaking the mould or taking the mould part. • The solidified object is called casting.