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FABRICATION TECHNOLOGY
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DI04019041
Code: DI04019041
Credits: 4
Semester 4
Mechatronics
Fabrication Technology
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Follow on Instagram for UpdatesFabrication Technology Syllabus — Unit-wise Content
The official GTU curriculum for Fabrication Technology (subject code DI04019041) as prescribed for Mechatronics · Semester 4 divides the course into 6 units, covering 25 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (DI04019041)Unit 1 Introduction
- (CO-1) 1.1 Term fabrication 1.2 Need and scope of Fabrication technology 1.3 Weldability of materials 1.4 Term manufacturing and fabrication 1.5 List different code & standards (with full forms) used in fabrication & erection of equipment / piping. 1.6 Major national and international fabrication companies 1.7 Major national and international third party inspection agencies 1.8 General Designation used for various engineering items. Spiral wound gasket Vehicle Tyre Welding electrode and welding rods Piping Flanges Grinding wheels (7 marks)
Unit 2 Drawing
- Interpretation (CO-2) 2.1 Types of drawing Process Plant General Arrangement Drawing (GAD) Process plant process and instrumentation drawing (P&ID) Process Flow Diagram (PFD) Detail and Assembly Drawing (D&AD) Route sheet OR Operation sheet Structural Detail drawing Shop Lay out drawing Piping isometrics drawing Welding detail drawing 2.2 Fabrication documentation preparation from drawing Welding Procedure Specification & Procedure Qualification Record (WPS/PQR) Welder Performance Qualification & Welder Qualification Record (WPQ/WQR) Shop Weld Plan (SWP) Weld Test Plan (WTP) 2.3 Raw material requirement calculation from drawing (size
- process point of view) Plate calculation Piping
- tube and fittings calculation Nozzle (flange and pipe/tube) calculation (17 marks) Program Name: Diploma Engineering Level: Diploma Branch: Mechanical Engineering Subject Cod: DI04019041 Subject Name: Fabrication Technology Dish end plate blank dia. calculation Weld consumable requirement calculation Structural items angle
- square solid/hollow bar, hexagonal solid/hollow bar, triangle solid/hollow bar calculation Piping erection calculation in inch-meter Piping welding calculation in inch-dia. Mechanical Structural works weld calculation. 2.4 Welding detailing preparation from drawing Weld Joint (WJ) nomenclature (Groove and Fillet weld) and WJ symbol Weld Edge preparation (WEP) nomenclatureWEP symbol Weld Location of Elements and its symbol Weld pass and Weld Layers Welding position (Groove & Fillet weld) Welding technique (forward and backward) Welding electrode designation (SMAW and GTAW electrode) Welding weaving patterns 2.5 Introduction to Code and standards used for fabrication ASME AWS ASTM TEMA EJMA D 1.1 D 1.5
Unit 3 Fabrication
- Processes (CO-3) 3.1 Welding Process requirements Arc Welding parameters setting (Voltage
- welding speed
- consumable feed and arc length) Gas welding parameters setting (gas pressure
- gas flow
- type of nozzle and optimized nozzle number) Preheating before starting welding Interpass during welding Post heating after welding Preheat
- Interpass and post heat temperature measuring by thermal sticks PWHT for thermal stress relieving 3.2 Fabrication procedures (16 marks) Program Name: Diploma Engineering Level: Diploma Branch: Mechanical Engineering Subject Cod: DI04019041 Subject Name: Fabrication Technology Plate Edge bending for rolling Plate rolling Weld edge preparation Plate marking for shell
- dish- end, tube sheet
- RF pad etc. Plate cutting by gas cutting and plasma cutting Shell alignment by string and laser technology Nozzle Orientation marking on shell Reference line marking on shell by dumpy level Ovality measurement of shell and it’s rectification by spiders. Profile checking by template (peak in / peak out) Circularity measurement by swing arm method. Offset rectification by wedge. Strip cladding and overlay Limpet coil marking on shell Shell to shell /dish end Long seam setup Shell to shell /dish end Circ. seam setup Method used to control thermal distortion Dish end manufacturing technique 3.3 Fabrication steps for with equipment function
- name of parts
- Pressure vessel / Storage vessel / Reaction vessel Shell and tube type heat exchanger Piping spools / multi-tier piping arrangement Industrial shed / electrical power transmission tower 3.4 Safety norms for, Work at heights before
- during and after welding work PPEs for welding work work safety equipment
Unit 4 Inspection and
- Testing (CO-4) 4.1 General terms regarding weld quality Weld quality Weld defects Stages of inspection Types of inspection Types of testing Difference between inspection and testing 4.2 Destructive Testing (procedure as per ASTM / ASME sec. v (16 marks) Program Name: Diploma Engineering Level: Diploma Branch: Mechanical Engineering Subject Cod: DI04019041 Subject Name: Fabrication Technology and Acceptance criteria as per ASME sec. viii div.1) Tensile testing Compressive testing Impact testing Hardness testing Weld bend testing 4.3 Non Destructive Testing (procedure as per ASTM / ASME sec. v and Acceptance criteria as per ASME sec. viii div.1) LPT MPT UT RT ECT 4.4 Special type of testing for equipment / piping operation Hydro test of pressure vessel / piping spools Pneumatic test of pressure vessel / piping spools Helium Leak test 4.5 Running inspection methods
- visual inspection by eye contact (grinding spark) by smell by hand touch (surface finish) by earing by magnet (ferrous / nonferrous)
Unit 5 Surface
- Finishing and Coating Methods (CO-5) 5.1 Surface preparation methods Sand blasting / ball blasting Surface grinding 5.2 surface finishing methods Manual and motorized Emery papering Manual and motorized wire brushing buffing wheel machining acetone / kerosene /petrol /diesel cleaning 5.3 surface color coating methods brush application roller application cotton application spray application 5.4 coating film thickness measurement techniques dry film thickness wet film thickness (7 marks) Program Name: Diploma Engineering Level: Diploma Branch: Mechanical Engineering Subject Cod: DI04019041 Subject Name: Fabrication Technology
Unit 6 Installation,
- erection and commissioning of process equipment (CO-6) 6.1 Term installation
- erection and commissioning 6.2 Difference between installation and erection 6.3 Type of static process plant equipment vessels
- heat exchangers
- distillation columns
- piping & valves etc. 6.4 Type of rotary process plant equipment pump, fan, blowers
- turbines etc. 6.5 Installation of centrifugal pump at site 6.6Erection of vessel at site 6.7Erection and mechanical clearance of piping spools at site 6.8Commissioning of process plant (7 marks)
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