JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Overview

course objectives:

• Study the composition of microstructures of metals and alloys with their applications in aerospace industry.
• Discuss the various manufacturing processes and selection of process for suitable applications.
• Understand the working principles and applications of conventional and unconventional machining along with their advantages and disadvantages.
• Demonstrate the importance of composites with their applications in different areas of aerospace industry.

Course Outcomes:

• Describe the basics of manufacturing processes, techniques, and quality process.
• Composite material, properties and characteristics.

UNIT - I

Aircraft Engineering Materials: Engineering materials Steels, study of iron, iron carbon phase diagram, heat treatment-annealing, normalizing, hardening and tempering of Aluminum and steel, Non-Ferrous metals and Alloys: Structure and properties of copper and its alloys, Aluminum and its alloys, Titanium and its alloys, Corrosion - Types of Corrosions - Prevention – Protective Treatments.

UNIT - II

Casting, Welding and Inspection Techniques: General principles of various casting processes Sand casting, die-casting, centrifugal casting, investment casting, Shell molding types; Principles and equipment used in arc welding, gas welding, resistance welding, solid, laser welding, and electron beam welding, soldering and brazing techniques. Need for NDT, ultrasonic testing, Radiographic testing, Flight testing.

UNIT - III

Sheet Metal Processes in Aircraft Industry: Sheet metal operations: shearing, punching, super plastic forming; operations in bending like stretch forming spinning drawing. Riveting, types and techniques, equipment, fasteners, integral tanks, final assembly of aircraft, Jigs and Fixtures, stages of assembly, aircraft tooling concepts.

UNIT - IV

Conventional and Unconventional Machining Processes: General working principles, applications and operations of lathe, shaper, milling machines, grinding, drilling machine, computer numeric control machining. Working principles and applications of abrasive jet machining, ultrasonic machining, Electric discharge machining and electro chemical machining, laser beam, electron beam, plasma arc machining.

UNIT - V

Aircraft Composites: Introduction, Physical metallurgy, Wrought aluminum alloys, Cast aluminum alloys, Production of semi-fabricated forms, Aerospace applications, Plastics and rubber, Introduction to fiber reinforced plastics, glass and carbon composites; Fibers and resins; Characteristics and applications, Classification of aircraft materials; Materials used for aircraft components, Application of composite materials, Super alloys, indigenized alloys, emerging trends in aerospace materials

R18 B.TECH. AERONAUTICAL ENGG.

TEXT BOOKS:

• 1. S. Kalpakjian, Steven R. Schmid, ―Manufacturing Engineering and Technologyǁ, Addison Wesley 5th Edition, 1991.
• 2. S. C. Keshu, K. K Ganapathy, ―Aircraft production technology and managementǁ, Interline Publishing House, Bangalore, 3rd Edition, 1993.
• 3. Douglas F. Horne, ―Aircraft production technologyǁ, Cambridge University Press, 1st Edition, 1986.

REFERENCE BOOKS:

• 1. S. C. Keshu, K. K Ganapathy, ―Air craft production techniquesǁ, Interline Publishing House, Bangalore, 3rd Edition, 1993.
• 2. R. K. Jain, ―Production technologyǁ, Mc Graw Hill, 1st Edition, 2002.
• 3. O. P. Khanna, M. Lal, ―Production technologyǁ, Dhanpat Rai Publications, 5th Edition, 1997. R18 B.TECH. AERONAUTICAL ENGG.