DEPARTMENTAL FACILITIES
Labs:
MECHANICAL WORKSHOP
1. Lathe machine
A Lathe is an important and oldest machine tool in any workshop. The job to be machined is held and rotated in a chuck, face plate, catch plate, between centres etc. A suitable cutting tool is advanced against rotating job. Since the cutting tool material is harder than the workpiece, the metal is easily removed from the job in the form of chip. Cutting tool used is a single point cutting tool.
2. Milling machines
Milling machines are very versatile. They are usually used to machine flat surfaces, but can also produce irregular surfaces. They can also be used to drill, bore, cut gears, and produce slots. The type of milling machine most commonly found in student shops is a vertical spindle machine with a swiveling head. Although there are several other types of milling machines, this document will focus only on the vertical milling machine.
3. Shaper machine
The shaping machine is used to machine flat metal surfaces especially where a large amount of metal has to be removed. Other machines such as milling machines are much more expensive and are more suited to removing smaller amounts of metal, very accurately. The reciprocating motion of the mechanism inside the shaping machine can be seen in the diagram. As the disc rotates the top of the machine moves forwards and backwards, pushing a cutting tool. The cutting tool removes the metal from work which is carefully bolted down.
4. Redial drilling machine
A machine in which the drilling head is mounted to slide along a radial arm which can be rotated, raised, or lowered on a vertical mast to adjust the position of the drill above the workpiece.
5. Piller type drilling machine
There are two types of machine drill, the bench drill and the pillar drill. The bench drill is used for drilling holes through materials including a range of woods, plastics and metals. It is normally bolted to a bench so that it cannot be pushed over and that larger pieces of material can be drilled safely. The larger version of the machine drill is called the pillar drill. This has a long column which stands on the floor. This can do exactly the same work as the bench drill but because of its larger size it is capable of being used to drill larger pieces of materials and produce larger holes.
6. Bench grinder
A bench grinder is a type of bench topgrinding machineused to drive abrasive wheels. A pedestal grinder is a larger version of a bench grinder that is mounted on a pedestal, which is bolted to the floor. These types of grinders are commonly used to hand grindcutting tools and perform other rough grinding. Depending on the grade of the grinding wheel it may be used for sharpening cutting tools such as lathe tools or drill bits. Alternatively it may be used to roughly shape metal prior to weldingor fitting.
7. Surface grinder
Surface grindingis used to produce a smooth finish on flat surfaces. It is a widely used abrasive machiningprocess in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or nonmetallic substance from a workpiece, making a face of it flat or smooth.
8. Power hacksaws
Power hacksaws are used to cut large sizes (sections) of metals such as steel. Cutting diameters of more than 10/15mm is very hard work with a normal hand held hacksaw. Therefore power hacksaws have been developed to carry out the difficult and time consuming work.
The heavy ‘arm’ moves backwards and forwards, cutting on the backwards stroke.
9. Muffle furnace
A muffle furnace is a furnace with an externally heated chamber, the walls of which radiantly heat the contents of the chamber, so that the material being heated has no contact with the flame. Muffle furnaces are most often utilized in laboratories as a compact means of creating extremely high-temperature atmospheres. They are employed to test the characteristics of materials at extremely high and accurate temperatures. A muffle furnace is also known as a retort furnace.
10. Spot welding
Spot welding is the most commonly used form of resistance welding. Usually it is used to weld various sheet metals with reduced thickness. The weld is discontinued and limited to one or more spots, with the work pieces usually overlapped. It is produced by the generation of heat and pressure, without filler metal, in a localized area.
11. TIG Welding
TIG welding is an electric arc welding process in which the fusion energy is produced by an electric arc burning between the workpiece and the tungsten electrode. During the welding process the electrode, the arc and the weld pool are protected against the damaging effects of the atmospheric air by an inert shielding gas. By means of a gas nozzle the shielding gas is lea to the welding zone where it replaces the atmospheric air. TIG welding differs from the other arc welding processes by the fact that the electrode is not consumed like the electrodes in other processes such as MIG/MAG and MMA.
12. Gas welding
Although the oxy-acetylene process has been introduced long time ago it is still applied for its flexibility and mobility. Equipment for oxyacetylene welding consists of just a few elements, the energy necessary for welding can be transported in cylinders, Process energy is obtained from the exothermal chemical reaction between oxygen an combustible gas, Figure 1.2. Suitable combustible gases are C2H2, lighting gas, H2, C3H8 natural gas; here C3H8 has the highest calorific value. The highest flame intensity from point of view of calorific value and flame propagation speed is, however, obtained with C2H2.
13. MIG
MIG (Metal Inert Gas) welding, also known as MAG (Metal Active Gas) and in the USA as GMAW (Gas Metal Arc Welding), is a welding process that is now widely used for welding a variety of materials, ferrous and non ferrous. The essential feature of the process is the small diameter electrode wire, which is fed continuously into the arc from a coil. As a result this process can produce quick and neat welds over a wide range of joints.
14. ARC welding
The most common high-intensity arc is probably the welding arc. These arcs vary in brightness and in ultraviolet radiation content, primarily as a function of arc current, shielding gas, and the metals being welded.
CNC LAB
Computer numerical controlled (CNC) lathes are rapidly replacing the older production lathes (multispindle, etc.) due to their ease of setting, operation, repeatability and accuracy. They are designed to use modern carbide tooling and fully use modern processes. The part may be designed and the tool paths programmed by the CAD/CAM process or manually by the programmer, and the resulting file uploaded to the machine, and once set and trialled the machine will continue to turn out parts under the occasional supervision of an operator.
SOM LAB
1.UNIVERSAL TESTING MACHINE
This machine is used to perform tensile, compression, shear and bend test. It operates on hydraulic loading and can be controlled manually. The maximum load attainable is 200kN and maximum displacement is 200mm. It also has a load stabilizer that can be used to apply a constant load for a period of three minutes.
2. TORSION TESTING MACHINE
This tester is used to obtain twisting moment-twist relationship of a specimen and to determine shear modulus G, yield stress τy in pure shear, experimental ultimate torque.
3. PENDULUM TYPE IMPACT TESTING MACHINE
This is used to study the toughness or energy absorbing properties of various materials under two types of impact tests i.e. Izod and Charpy impact tests.
FLUID MECHANICS LAB
1. ROTAMETER
A rotameter is a device that measures the flow rate of liquid or gas in a closed tube. It belongs to a class of meters called variable area meters, which measure flow rate by allowing the cross-sectional area the fluid travels through, to vary, causing a measurable effect.
2. REYNOLDS APPARATUS, PITOT TUBE TEST RIG
Reynolds's Number is a dimension less number used by engineers to determine type of Fluid Flow and testing on scale down models of airplanes, ships etc.
Apparatus consists of a constant head tank and a small tank. The constant head tank has a horizontal/vertical transparent tube with a and a flow control valve at the discharge side. The velocity of water is varied by the flow control valve. When the dye is introduced then laminar or turbulent nature of the flow can be visualized.
3. FRICTION OF PIPE TEST RIG
This machine provides accurate result with less time and is very easy to use. Manufactured using high-grade material, this machine also offers higher service life. This apparatus is designed to introduce students to major flow losses Frictional) in Pipes.
4. VENTURIMETER APPARATUS
The Venturimeter is a device used to measure the flow rate. As shown, it consists of a tapering contraction section, along which the fluid accelerates towards a short cylindrical throat, followed by a section which diverges back to its original diameter.As velocity increases from the inlet section to the throat, there is a fall in pressure, the magnitude of which depends on the rate of flow. The flow rate may therefore be inferred from the difference in pressure, as measured by pizometers placed upstream and at the throat.
The device is used to determine the discharge coefficient or the Venturimeter coefficient (C). This value lies between 0.92-0.99 and varies from one meter to another.
FLUID MACHINES LAB
Centrifugal Pump Experiment: The centrifugal pump experiment involves studying the performance characteristics of a centrifugal pump. This includes measuring the flow rate, pressure head, and power consumption at different operating conditions. The experiment helps in understanding the pump's efficiency, head-capacity curve, and the impact of varying impeller speed or diameter.
Reciprocating Pump Experiment: The reciprocating pump experiment focuses on a positive displacement pump that uses a piston or plunger to move fluid. This experiment involves analyzing the pump's performance by measuring parameters like flow rate, pressure head, power consumption, and efficiency under different operating conditions.
Pelton Turbine Experiment: The Pelton turbine experiment involves studying the performance of an impulse turbine used for high head water power generation. The experiment includes measuring parameters like turbine efficiency, power output, and jet impact force for different water flow rates and nozzle settings.
Kaplan Turbine Experiment: The Kaplan turbine experiment focuses on studying the performance characteristics of a reaction turbine widely used in hydroelectric power plants. The experiment involves measuring the turbine efficiency, power output, and flow characteristics at different operating conditions, such as varying the guide vane opening and water flow rate.
Francis Turbine Experiment: The Francis turbine experiment involves analyzing the performance of a reaction turbine commonly used for medium head applications. The experiment includes measuring parameters like turbine efficiency, power output, and flow characteristics under different operating conditions, such as varying the guide vane opening and water flow rate.
RAC LAB
1. AIR CONDITIONING TEST RIG
Air Conditioning Test Rig works on simple vapor compression refrigeration cycle. Eco-friendly R 134 is used as refrigerants in our Air Conditioning Test Rig. Our Air Conditioning Test Rig is highly useful in conducting experiments on a vapor compression air conditioning unit. The Air Conditioning Test Rig with components mounted on the display board makes it easy for the students to study all the air conditioning process.
2. REFRIGERATION TEST RIG
Refrigeration Test Rigs offered by us work on simple vapor compression refrigeration cycle and use R134A as a refrigerant. Refrigeration Test Rigs, that we provide, are environment friendly. Our Refrigeration Test Rigs are fabricated such that students can observe and study vapor compression cycle, its component principle & working. The arrangement of parts in Refrigeration Test Rigs is such that, all parts are visible and working can be easily understood.
3. ICE PLANT TEST RIG
The Ice Plant Test Rig designed by us works on simple vapor compression refrigeration cycle and uses R134a or R 404 A as a refrigerant. The system is designed such that students can observe and study ice formation process without any confusion. It is also useful to understand working of vapor compression system, due to its sophisticated yet simple performance and controls.
HMT LAB
1. THERMAL CONDUCTIVITY OF METAL ROD
Metal Rod Apparatus consists of a metal rod horizontally placed in a M.S. cylinder (insulating jacket) & is insulated by covering the metal rod by insulating powder. An electric heater is fixed at one end of rod while the other end protrudes in to a water jacket. The heat flows through the rod by mode of conduction. A number of thermocouples are fixed along the length of rod. Six thermocouples are embedded along the length of the rod to measure the temperature distribution. Four more thermocouples are placed within the insulating powder while two thermocouples measure the water temperature at inlet & outlet. The control panel consists of a dimmers stat to control the voltage supplied to the heating element. A Voltmeter, an ammeter and a digital temperature indicator are also provided.
2.THERMAL CONDUCTIVITY OF INSULATING POWDER
This experiment is used to determine the thermal conductivity of the Insulating Material.
3. HEAT TRANSFER THROUGH COMPOSITE WALLS
This experiment is used to determine total thermal resistance & thermal conductivity of composite wall.
4. HEAT TRANSFERRED THROUGH PIN FIN
This experiment is used to study the temperature distribution along the length of a pin fin in natural & forced convection.
5. HEAT TRANSFER IN FORCED CONVECTION
This experiment is used to study the temperature distribution by forced convection.
AUTO CAD LAB
THEORY OF MACHINE LAB
IC ENGINE LAB
3D Printer
MECHANICAL ENGINEERING DEPARTMENT LIBRARY
The library in the Mechanical Engineering Department is an essential learning resource that caters specifically to the needs of students and faculty in the department. Here is a summary of the key features and services provided by the library:
Book Collection: The library offers a comprehensive collection of over 400 books covering various subjects within mechanical engineering. These books provide relevant and up-to-date information in the field, serving as important resources for students and faculty.
Theses Collection: The library houses a valuable collection of master's and PhD theses from students in the department. These theses serve as important research references, offering in-depth analysis and insights into specific mechanical engineering topics.
Study Materials: To support comprehensive learning, the library provides a wide range of study materials specific to mechanical engineering. These materials include textbooks, lecture notes, and supplementary resources that complement classroom instruction and help students deepen their understanding of core concepts and principles.
Project and Seminar Reports: The library maintains a collection of project and seminar reports, showcasing the academic achievements and practical applications of students' work. These reports serve as valuable references for students working on similar projects or preparing for seminars.
Visual Learning Resources: The library offers a curated collection of charts and assignments that aid visual learning and practical application. These resources provide visual aids and practice exercises to help students comprehend complex concepts and strengthen their problem-solving skills.
E-resources: The library provides access to digital databases, journals, and online publications specific to mechanical engineering. This allows students and faculty to explore current research, industry trends, and emerging technologies.
Extended Hours: During exam periods, the library extends its hours of operation to accommodate the needs of students in the Mechanical Engineering Department. This ensures that students have ample time for studying, revising, and preparing for their exams.