Metal Joining detail TNDTE Diploma syllabus for Agricultural Technology (MT), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (32643), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.
For all other metallurgy 4th sem syllabus for diploma m scheme tndte you can visit Metallurgy 4th Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for metal joining is as follows.
Rationale:
Welding is a process to join metals of different types. Welding process have become increasing the important in almost all manufacturing industries and for structural fabrication. Ship building thermal and nuclear power plant, oil pipeline, construction and automobile are the major industries whereas welding employed extensively. In first 3 units different types of welding processes, procedure, principles etc. In 4th and 5th unit the metallurgy of welding like heat flow, microstructure, weldability ,symbols, defects, welding safety recommendation and using of jigs and fixtures etc.
By studying this subject the student can able to understand the real conditions and use the right type of process and remedies to particular operations.
Objectives:
At the end of the study of III Semester the student will be able to
- Understand welding principles
- Difference from other processes
- Various aspects of arc welding will be understood
- Specialized arc welding equipments will be taught
- Basics of gas welding on metals will be understood
- Fundamentals of Brazing & Soldering is dealt
- Gas welding and Cutting are dealt
- Metallurgy of welding will be effective in controlling the variables & processes
- Fundamentals of HAZ & microstructures will be useful
- Types of Jigs & Fixtures are discussed
- The common welding defects are analyzed with their remedial measures
- Welding symbols are indicated
- Testing of Weldments is taught which is a control routine in quality control
- Safety recommendations & Protection to the welders & equipments will be useful in improving the quality of component & human.
Detailed Content:
Unit I
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Unit II
Special Welding Processes & Its Equipments:
- Flux shielded metal arc welding.(principle, operation, equipment, advantages & disadvantages, use only),
- Avoiding crater on main structure. Procedure for restarting arc with a ne electrode.
- Submerged arc welding process.(principle, operation, equipment, advantages &dis advantages, use only)
- Single carbon arc welding. (Principle, operation, equipment, advantages disadvantages, use only)
- Thermit welding (principle, operation, equipment, advantages & disadvantages, use only)
- Tungsten inert gas welding. (Principle, operation, equipment, adv & disadvantages, use only)
- Plasma arc welding.(principle, application only)
- Electron beam welding.(principle, application only)
- Laser welding. (Principle, application only).
Unit III
Gas Welding & Equipments:
Oxy-Acetylene welding:
- Principle of operation- Types of welding flames
- Chemistry of oxy-acetylene flame
- Lightning, adjusting and extinguish the flame.
Gas welding techniques
- leftward technique
- rightward techniqueFiller metal
- fluxes
- Machines and accessories
Gas welding equipments
- Oxygen gas cylinder
- Acetylene gas cylinder
- Acetylene gas generator
- Manifold system for gas welding
- Oxygen and acetylene pressure regulators
- Comparison. Oxygen and acetylene gas hoses and hose connections
- Welding torches (two types) Welding nozzles
- Gas lighter
- Introduction
- General considerations
- Solidification of the weld metal
- Gas
- metal reactions
- Slag
- metal reactions
- Hot
- cracking
- Weld composition.
- Gas cylinder trolleys.
Unit IV
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Unit V
Welding Defects, Testing & Safety :
Defects in welds
- Cracks
- Incomplete penetration
- Porosity & blowholes
- Poor weld bead appearance
- Undercutting
- Distortion Inclusions
- Poor fusion
- Spatter
- Overlapping.
Introduction to metal cutting:
- Types of cutting processes
- Oxy
- fuel ga cutting
- flame cutting
- Advantage
- disadvantage and uses.
Welding jigs and fixtures .
- introduction
- types
Welding symbols:-
- Representing the welds
- Basic weld symbols
- Location of welds
- Supplementary symbols
- Dimensions of welds.
Testing of welds:-
- Hardness test:-
- Brinell hardness test
- .Rockwell hardness test.
- Vickers hardness & Micro Hardness test.
- Safety recommendations gas welding equipment
- Gas cylinders
- Manifolds
- Torches and tips Pressure regulators
- Gas tubing Other general precautions.
- Safety recommendations for arc welding equipments—
- Arc welding machines
- Electrode holders
- Explosion
- fire and other hazards
- Protectio of welders
- Protection from welding rays
- Protection from sparks and spatter
- Ventilation and health protection.
Text Book:
- A text book of Welding technology, O.P.Khanna, Dhanpat Rai & Sons.
- Welding Technology, N.K.Srinivasan, Khanna Publishers
Reference Books:
For complete syllabus and results, class timetable and more pls download iStudy Syllabus App. It’s a lightweight, easy to use, no images, no pdfs platform to make students life easier.
For detail syllabus of all other subjects of BE Metallurgy, M scheme do visit Metallurgy 4th Sem syllabus for M scheme.
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