PR8502 - FOUNDRY TECHNOLOGY (Syllabus) 2017-regulation Anna University

PR8502 - FOUNDRY TECHNOLOGY (Syllabus) 2017-regulation Anna University

PR8502	FOUNDRY TECHNOLOGY	LPTC

3003

OBJECTIVE:

• To understand the principle, procedure and applications of various foundry processes.

UNIT I	CASTING PROCESS	9

Introduction to casting – pattern – materials allowances – coding – types – moulds – mould making, sand – properties, types and testing of sands – core making – type of cores – single box, two box and 3 box moulding processes.

UNIT II	CASTING METALLURGY	9

Solidification of pure metal and alloys – shrinkage in cast metals – progressive and directional solidification –– Degasification of the melt-casting defects – Castability of steel , Cast Iron, Al alloys , Babbit alloy and Cu alloy.

UNIT III	DESIGN OF GATING SYSTEMS	9

Gating systems and their characteristics; the effects of gates on aspiration; turbulence and dross trap; recent trends. Chvorinov's Rule - Riser design - NRL method of riser design; feeding distance;

UNIT IV	RECENT TRENDS IN CASTING AND FOUNDRY LAYOUT	9

Shell moulding, precision investment casting, CO2 moulding, centrifugal casting, Die casting, Continuous casting, Counter gravity low pressure casting, Squeeze casting and semi-solid processes. Layout of mechanized foundry – sand reclamation – material handling in foundry pollution control in foundry –– Computer aided design of casting.

UNIT V	TESTING OF CASTINGS	9

Causes and remedies for casting defects –Destructive testing – NDT – Dye penetrant – magnetic particle – X-ray, ultrasonics- case studies in testing of joints & castings. Methods of elimination and control of dissolved gases in castings. use of statistical quality control in foundry.

TOTAL : 45 PERIODS

OUTCOMES: Upon completion of this course, the students can able

• To understand of various steps in Casting Process.
• To analyze Casting Solidification and Castability of metals.
• To design different casting system and use different Foundry practices.
• To study of various recent trends in Casting methods.
• To perform different testing to study the defect in the casting and apply engineering skills to minimise the defects.

TEXT BOOKS:

1. Jain P.L., Principles of Foundry Technology, Tata McGraw Hill Publishers, 2003
2. Principle of metal casting – Heine Loper and Rosenthal – Tata McGraw Hill – 2005

REFERENCES:

1. ASM Handbook, Vol 15, Casting, 2004
2. Taylor H.F., Fleming.M.C.,, "Foundry Engineering" M.C. & Wiley Eastern Ltd., 2009