JNTUK R20 2-1 Production Technology Material/Notes PDF Download


JNTUK R20 2-1 Production Technology Material/Notes PDF Download

Students those who are studying JNTUK R20 Mechanical Branch, Can Download Unit wise R20 2-1 Production Technology (PT) Material/Notes PDFs below.


JNTUK R20 2-1 Production Technology Material/Notes PDF Download

Course Objectives : To impart basic knowledge and understanding about the primary manufacturing processes such as casting, joining, bulk forming, sheet metal forming and powder metallurgy and their relevance in current manufacturing industry.


CASTING : Steps involved in making a casting – Advantage of casting and its applications. Patterns and Pattern making – Types of patterns – Materials used for patterns, pattern allowances and their construction, Molding – molding methods – ingredients of molding sand –. Molding materials, Properties of molding sand, Testing of molding sand. Types of molding – Hand molding – Machine molding. Core – different types of cores – materials – properties of core sand – core manufacturing.

Download UNIT-1 Material PDF | Reference-2


Principles of Gating, Gating ratio and design of Gating systems. Risers – Types, function and design, casting design considerations. Methods of melting and types of furnaces – cupola, electric arc, resistance and induction furnace. Solidification of castings-Solidification of pure metals and alloys-Short & long freezing range alloys. Fettling. Casting defects. Basic principles and applications of special casting processes – Centrifugal casting – True, semi and centrifuging, Die casting, Investment casting and shell molding.

Download UNIT-2 Material PDF


Welding : Classification of welding processes, types of welded joints and their characteristics, Gas welding, Different types of flames and uses, Oxy – Acetylene Gas cutting. Basic principles of Arc welding, power characteristics, Manual metal arc welding, Submerged arc welding, TIG & MIG welding. Electro – slag welding. Resistance welding, Friction welding, Friction stir welding, Forge welding, Explosive welding; Thermit welding, Plasma Arc welding, Laser welding, electron beam welding, Soldering & Brazing.

Heat affected zones in welding; pre & post heating, Weldability of metals, welding defects – causes and remedies – destructive and nondestructive testing of welds.

Download UNIT-3 Material PDF


Plastic deformation in metals and alloys-recovery, recrystallization and grain growth. Hot working and Cold working-Strain hardening and Annealing. Bulk forming processes: Forging – Types of Forging, Smith forging, Drop Forging, Roll forging, Forging hammers, Rotary forging, forging defects; Rolling – fundamentals, types of rolling mills and products, Forces in rolling and power requirements. Extrusion and its characteristics. Types of extrusion, Impact extrusion, Hydrostatic extrusion; Wire drawing and Tube drawing.

Download UNIT-4 Material PDF


Sheet metal forming – Blanking and piercing, Forces and power requirement in these operations, Deep drawing, Stretch forming, Bending, Spring back and its remedies, Coining, Spinning, Types of presses and press tools.

High energy rate forming processes: Principles of explosive forming, electromagnetic forming, Electro hydraulic forming, rubber pad forming, advantages and limitations.

Download UNIT-5 Material PDF


1. Manufacturing Processes for Engineering Materials – Kalpakjian S and Steven R Schmid- Pearson Publ , 5th Edn.

2. Manufacturing Technology -Vol I- P.N. Rao- TMH


1. Manufacturing Science – A.Ghosh & A.K.Malik – East West Press Pvt. Ltd

2. Process and materials of manufacture- Lindberg- PHI

3. Production Technology- R.K. Jain- Khanna

4. Production Technology-P C Sharma-S. Chand

5. Manufacturing Processes- H.S. Shaun- Pearson

6. Manufacturing Processes- J.P. Kaushish- PHI

7. Workshop Technology -WAJ Chapman/CBS Publishers&Distributors Pvt.Ltd.

8. Production Technology-HMT- Tata McGrawHill

COURSE OUTCOMES: After undergoing the course the student is expected to learn

  • CO1: Able to design the patterns and core boxes for metal casting processes
  • CO2: Able to design the gating system for different metallic components
  • CO3: Know the different types of manufacturing processes
  • CO4: Be able to use forging, extrusion processes
  • CO5: Learn about the different types of welding processes used for special fabrication

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  1. Sir / madam

    I am ganesh studying I b tech mechanical second 2-1 r20 regulation jntu kakinada. R20 regulation important questions and model papers. It’s my request madam please send me my Email. So please grant me your student ganesh babu.

    Yours faithfully
    E. S. Ganesh babu


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