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INDUSTRIAL TRAINING REPORT 
ON 
GENERAL AWARENESS OF STEAM TURBINE MANUFACTURING 
Submitted to:- 
Dr. Harshdeep Sharma 
Coordinator 
Industial Training 
Submitted by:- 
Abhishek Chaudhary 
1101201085 
4th year (me-3)
QUES 1 : - What is Steam Turbine ? 
Turbine is a engine that converts energy of fluid into mechanical energy 
and steam turbine is a steam driven rotatry engine 
A stream turbine is a device that extracts thermal energy from pressurized steam 
and uses it to do mechanical energy on a rotating output shaft 
It is a device where kinetic energy (heat) converted into mechanical energy 
(in shape of rotation)
Classifation of steam turbines 
1.On the type of flow 
Direction of steam flow in relation to turbine wheel(drum) 
1)axial 
2)radial 
3)mixed 
4)tangential 
Radial flow steam turbine :- in this steam flow is in radial direction 
either towards or away From axis 
Axial flow steam turbine :-in such turbine the steam flow in direction 
or direction parallel to the axis of wheel or rotor 
Majority of high power turbines are of axial type 
Mixed flow steam turbine:- The steam flow through hp cylinder and then 
Reversed flow in opposite direction through 
remainder of high pressure cylinder
2. WAY OF ENERGY CONVERSION AND TYPE OF BLADING 
1) IMPULSE TURBINE 
2) REACTION TURBINE
By Type of Blading :- 
Heat contained in steam passes through turbine must 
be converted into mechanical energy depends up on 
shape of turbine blades 
2 basic design of blades are 
1) impulse 
2) reaction 
Impulse blades:- 1) Works on principalof high pressure steam 
striking or hitting against the moving blade 
2) Impulse blades r usually symmetric and have 
An entrance and exit angle of 20 degree 
3) They r installed on high pressure section 
of turbine 
4) They r short and have constant cross section
REACTION BLADE :- 
Energy contained with in the steam 
converted to mechanical 
Energy By reaction of jet of 
steam as it expands through 
Blades of rotor 
Rotor is forced to rotate as expanding 
Steam Exhausts the rotor arm nozzle
Application of steam turbine 
1) Power station 
2) Industrial 
3) transport
Steam turbine components and relative 
equipments:-
2ND SHORT PPT ON BHEL INTERNSHIP(BLOCK-3)(2014)
Frame : -
Manufacturing of steam turbine blade on cnc 3 
axis machine 
VARIOUS OPERATIONS ARE:- 
1. RAW MATERIAL PROCUREMENT 
2. LENGTH CUTTING 
3. THICKNESS MILLING 
4. THICKNESS GRINDING 
5. RHOMBOID MILLING & grinding 
6. FACING AND SIZE MILLING 
7. WIDTH MILLING 
8. TAPER MILLING & GRINDING 
9. FITTING AND POLISHING
RAW MATERIAL PROCUREMENT: 
The steam turbine blade material is procured (the action of obtaining) as per 
the design specification. The material is inspected dimensionally and all the 
mechanical and chemical analysis are made as per the specification 
LENGTH CUTTING: 
The material is cut to length by keeping machining allowance at both ends 
THICKNESS MILLING: 
The material is clamped in a vice or fixture and thickness is milled on both 
sides by keeping n allowance of 0.5mm on both sides for grinding 
RHOMBOID MILLING: 
The ground blade bars are milled to rhomboid shape with an angle given 
in the process by clamping in a ficture on both sides with an allowance of 
0.5mm on both side. This is done on the horizontal milling machines. 
WIDTH MILLING: 
The profile width is done on both sides on horizontal milling machine as per 
the drawing.
TAPER GRINDING: 
The taper grinding is done on a surface grinding machione 
and ensure the angle with in 
the given tolerance in the diagram. Also surface finish must 
be with in 8 microns 
FITTING AND POLISHING: 
The blades are deburred (smoothen the rough 
edges) and rounded off on the inlet side and then 
polished on blade
CONCLUSION :- 
Efficiency and reliability of a steam turbine depends on the 
proper design of blades 
The reliability of moving blades is to be ensured upon 
proper design selection of material. 
Different milling cutters are used to finish the operation on 
the blade
Reference :- 
1) HANDBOOK (BHEL) 
2)GOOGLE(http://www.slideshare.net/physics101/ 
turbine-manufacturing-process) 
3)WIKIPEDIA(http://en.wikipedia.org/wiki/Steam_tu 
rbine) 
4)TURBOMACHINES BY S.M YAYA

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2ND SHORT PPT ON BHEL INTERNSHIP(BLOCK-3)(2014)

  • 1. INDUSTRIAL TRAINING REPORT ON GENERAL AWARENESS OF STEAM TURBINE MANUFACTURING Submitted to:- Dr. Harshdeep Sharma Coordinator Industial Training Submitted by:- Abhishek Chaudhary 1101201085 4th year (me-3)
  • 2. QUES 1 : - What is Steam Turbine ? Turbine is a engine that converts energy of fluid into mechanical energy and steam turbine is a steam driven rotatry engine A stream turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical energy on a rotating output shaft It is a device where kinetic energy (heat) converted into mechanical energy (in shape of rotation)
  • 3. Classifation of steam turbines 1.On the type of flow Direction of steam flow in relation to turbine wheel(drum) 1)axial 2)radial 3)mixed 4)tangential Radial flow steam turbine :- in this steam flow is in radial direction either towards or away From axis Axial flow steam turbine :-in such turbine the steam flow in direction or direction parallel to the axis of wheel or rotor Majority of high power turbines are of axial type Mixed flow steam turbine:- The steam flow through hp cylinder and then Reversed flow in opposite direction through remainder of high pressure cylinder
  • 4. 2. WAY OF ENERGY CONVERSION AND TYPE OF BLADING 1) IMPULSE TURBINE 2) REACTION TURBINE
  • 5. By Type of Blading :- Heat contained in steam passes through turbine must be converted into mechanical energy depends up on shape of turbine blades 2 basic design of blades are 1) impulse 2) reaction Impulse blades:- 1) Works on principalof high pressure steam striking or hitting against the moving blade 2) Impulse blades r usually symmetric and have An entrance and exit angle of 20 degree 3) They r installed on high pressure section of turbine 4) They r short and have constant cross section
  • 6. REACTION BLADE :- Energy contained with in the steam converted to mechanical Energy By reaction of jet of steam as it expands through Blades of rotor Rotor is forced to rotate as expanding Steam Exhausts the rotor arm nozzle
  • 7. Application of steam turbine 1) Power station 2) Industrial 3) transport
  • 8. Steam turbine components and relative equipments:-
  • 11. Manufacturing of steam turbine blade on cnc 3 axis machine VARIOUS OPERATIONS ARE:- 1. RAW MATERIAL PROCUREMENT 2. LENGTH CUTTING 3. THICKNESS MILLING 4. THICKNESS GRINDING 5. RHOMBOID MILLING & grinding 6. FACING AND SIZE MILLING 7. WIDTH MILLING 8. TAPER MILLING & GRINDING 9. FITTING AND POLISHING
  • 12. RAW MATERIAL PROCUREMENT: The steam turbine blade material is procured (the action of obtaining) as per the design specification. The material is inspected dimensionally and all the mechanical and chemical analysis are made as per the specification LENGTH CUTTING: The material is cut to length by keeping machining allowance at both ends THICKNESS MILLING: The material is clamped in a vice or fixture and thickness is milled on both sides by keeping n allowance of 0.5mm on both sides for grinding RHOMBOID MILLING: The ground blade bars are milled to rhomboid shape with an angle given in the process by clamping in a ficture on both sides with an allowance of 0.5mm on both side. This is done on the horizontal milling machines. WIDTH MILLING: The profile width is done on both sides on horizontal milling machine as per the drawing.
  • 13. TAPER GRINDING: The taper grinding is done on a surface grinding machione and ensure the angle with in the given tolerance in the diagram. Also surface finish must be with in 8 microns FITTING AND POLISHING: The blades are deburred (smoothen the rough edges) and rounded off on the inlet side and then polished on blade
  • 14. CONCLUSION :- Efficiency and reliability of a steam turbine depends on the proper design of blades The reliability of moving blades is to be ensured upon proper design selection of material. Different milling cutters are used to finish the operation on the blade
  • 15. Reference :- 1) HANDBOOK (BHEL) 2)GOOGLE(http://www.slideshare.net/physics101/ turbine-manufacturing-process) 3)WIKIPEDIA(http://en.wikipedia.org/wiki/Steam_tu rbine) 4)TURBOMACHINES BY S.M YAYA