MECHANICALFUNDA for Mechanical Engineers: Advantages

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Advantages and disadvantages of sound energy

Sound energy is caused by the vibration of particles in matter. Sound is a mechanical type of wave that needs a medium to travel through. This energy is generated by drums, guitar, or radio. So here this article gives the advantages and disadvantages of sound energy to better understand this topic.

Pros or Advantages of sound energy:

The operations and maintenance are very low.
It is pollution-free.
The sound of whale song can travel longer distances.
It is a renewable source of energy.
It does not require any kind of fuel.
Sound energy can be easily converted to electrical energy and vice versa.
It can be used in places where the sound is very low.

Cons or Disadvantages of sound energy:

Sound waves can not be seen and hence we can not pressure waves due to sound energy.
Sound can not travel through the vacuum.
The sound energy should be below a certain power level, otherwise, it can be annoying to human beings.
Sound energy can break the glass.

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Advantages and disadvantages of gas welding

Gas welding is a fusion welding process, in which the heat for welding is obtained by the combustion of oxygen and some fuel gas. The fuel gas may be acetylene, hydrogen, propane, or butane. So here this article gives the advantages and disadvantages of gas welding to better understand this topic.

Advantages or pros of Gas welding:

It is a heavy section that cannot be joined economically.
Flame temperature is less than the temperature of the arc.
Fluxes used in certain welding operations produce a flame that is irritating to the eyes, nose, throat, and lungs.
It can be used as a site.
It can also be used as gas cutting.
It is a very simple piece of equipment.
It is easy to operate and does not require a high skill operator.
It is probably the most versatile process. It can be applied to a wide variety of manufacturing and maintenance situations.
It can be easily maintained and repaired.
Equipment is portable than the other type of welding.
It is seld sufficient and does not rely on other equipment.
The rate of heating and cooling process is relatively slow. In some cases this is in advantages.
The welder has considerable control over the temperature of the metal in some of the weld zone.
The equipment is versatile, low cost and usually portable.
The cost and the maintenance of the gas welding equipment are low when compared to that of some other welding processes.
Since the source of heat and also of filler metal are separate, the welder has total control over filler metal deposition rates.

Disadvantages or Cons of Gas welding:

Heavy sections cannot be joined economically.
Flame temperature is less than the temperature of the arc.
Fluxes used in certain welding and brazing operation produce fumes that are irritating to the eyes, nose, throat, and lungs.
More safety problems are associated with the handling and storing of gases.
Gas flame takes a long time to heat up the metal than the use of arc welding.
Acetylene and oxygen gases are rather expensive.
Flux shielding in gas welding is not so effective as an inert gas shieling TIG or MIG welding.
The power density is low.
A skilled operator is required to operate this machine.
Slow metal joining rate.
Higher safety issues due to the naked flame of high temperature.
It provides low surface finish. This process needs a finishing operation after welding.
Gas welding has a large heat-affected zone which can cause a change in the mechanical properties of parent materials.
No shielding is which causes more welding defects.
The heat-affected zone is large.
Gas welding is not recommended for welding reactive and refractory metals like titanium and zirconium.

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Advantages and disadvantages of arc welding

Arc welding is a welding process that uses an electric arc to create enough heat to melt metal, it cools and results in the bonding of the metals. This fusion welding uses AC or DC power supply as its source of heat. this power supply creates an arc between a consumable or non-consumable electrode, passing either AC or DC current to the base materials. So here this article gives the advantages and disadvantages of arc welding to better understand this topic.

Advantages or pros of arc welding:

It is suitable for high-speed welds.
It is a simple welding apparatus.
It can work on AC or DC.
Superior temperatures.
Less smoke or sparks are involved.
Portability as a result of the simple equipment.
High welding speed.
It is a fast welding process when compared to others,
It offers strong joints.
Produces very little distortion.
High corrosion resistance.
It has the ability to weld on porous and dirty metal.
It is the equipment that is inexpensive.
Its operation can be performed during wind or rain.
Its power supply can be used where there is electricity and the alternative can use be if there is no electricity but generators.
Smooth welding is achieved.
It is a good impact strength.
Arc welding beads can be used to create designed on fine metals.
It can be carried out in any atmosphere.

Disadvantages or Cons of arc welding:

Require skilled welders.
Cannot be used for reactive metal like AI or Ti.
Not suitable for welding thin metals.
Not all thin metal can weld on arc welding.
Well trained and skillful operator is needed for the task.
Increases of project costs as wastage is inevitable during the process.

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Advantages and disadvantages of gas welding

What are the advantages of dual carburetor over single barrel carburetor?

The single-barrel carburettor has only one barrel, whereas a dual carburettor has two-barrel. Engine with higher displacement requirement is large-bore to provide adequate airflow makes throttle response too fast so some automobile manufacturer used two-barrel used in carburettor in this type of engine. Let us have a deep insight into the advantages of used dual carburettor over single barrel carburettor?

Advantages of dual carburettor :

The duel carburettor supplies a charge of a mixture to the cylinders which are uniform in quality.
Volumetric the efficiency of the dual carburettor is higher than a single barrel carburettor.
The charge of the air-fuel mixture is distributed to each cylinder in a better manner.
The dual a carburettor is compact in its design.

Why are double barrel used in the carburettor?

The fight is only and only efficiency and performance when the question comes to the carburettor. Many older carburettors are single barrel which is fine for low HP applications. The problem is that higher displacement engine as we have seen in the first paragraph. To getting a fairly constant fuel-air ratio across the engine double-barrel carburettor can be optimised. At low RPM and low power demand, only one provides a fuel-air mix to the engine. When more RPM or power is required, the second barrel comes into play and allowing the different fuel-air ratio to be used and provide a better fuel-air mix to the engine.

Advantages of multiple venturi carburetion system

When one or more secondary venturi enclosed inside the main venturi of a carburettor is called multiple venturi carburettor and this carburetion system is called a multiple venturi carburetion systems. Benefits of using this and results of multiple venturi carburetion system are listed below.

Advantages of multiple venturi carburetion system :

Reducing condensation of the fuel :

The main jet discharges the fuel into the primary venturi in an upward direction against the downward airstream in a multiple venturi system. The airflow atomizes the fuel. The primary venturi keeps the fuel thus atomized in the primary venturi centrally located in the air stream.

In addition, a blanket of air surrounding the primary venturi and passing into the secondary venturi keeps the atomized fuel in the air stream centrally located. Through this process, the carburettor walls are protected for a certain distance from coming into contact with fuel, thus reducing condensation.

High-speed system :

The throttle valve is sufficiently opened when the speed is to be increased from low to high. The air flows faster through the primary venturi when the throttle valve is wider open. In the portion of the jet orifice, this airflow produces a vacuum. Because of this increase in a vacuum, the main jet will discharge additional fuel. The high-speed system maintains an almost constant air-fuel ratio.

Due to high depression created at the region of fuel nozzle better automatization, and better control of fuel.
The excellent air-fuel mixture is achieved without any reduction in volumetric efficiency.
The excellent low-speed full throttle operation is provided.

Advantages of permanent mould casting

Permanent mould casting is a process makes use of a reusable metal mould that made from metal. This process involves pouring molten metal into a mould where cools and solidifies after that mould is opened, casting is removed and mould is reused. Let us have a deep insight into the advantages provided by using this casting process.

Advantages of permanent mould casting :

Close dimensional tolerance can be obtained.
This process is economical for large scale production as the labour involved in the mould preparation is reduced.
Produce a very good surface finish of the order of 4 microns.
Better appearance.
This process produces a fine-grained casting with superior mechanical properties because of the metallic mould used.
Small cored holes may be produced as compared to sand casting.
Inserts can be readily cast in place.
Increases repeatability of casting.
Finer grain structure can be obtained.
High volume production runs.
Less expensive than investment and die casting.

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Advantages and Disadvantages of Permanent mould casting

Advantages of gear drive

Gear drive is used to transmitting mechanical power from one place to another, often used to convey power to wheels of the bicycle and motorcycles. It is also used in a wide variety of machine apart from the vehicle. Let us have a deep insight into the advantages of gear drive in this article.

Advantages of gear drive :

It is very compact and needs less space.
Most convenient for very small centre distances.
The velocity ratio will remain constant throughout and any velocity ratio up to 60:1 can be obtained.
It has very high efficiency which is very useful in transmitting motion.
It will be possible to transmit the power if the axes of the shafts are not only parallel, but even when the axis of the shaft is nonparallel, intersecting, non-intersecting and coplanar or non-coplanar by using different types of gears.
They can be used conveniently for transmission of low, medium and high power.
It is a reliable service that is a very good advantage.
Gears are employed for a wide range of applications like in watches, precision measuring instruments, machine tools, gearboxes fitted in automobiles, aero engines, etc.
Gears may be cast integral with the shafts if required.
In a wide range of metallic and non-metallic materials, gears can be cast.
It provides a large range of speed and torque for same input power.
It is compact and needs less space.

Advantages of chain drive

A chain drive is positive drives, so the velocity ratio remains constant and no-slip occurs, making it suitable mainly for the shorter centre distance. The chain drive is a way of mechanical power transmission mainly used in a motorcycle. Let us check some advantages of a chain drive in this article.

Advantages of a chain drive :

Positive and non-slip drive.
Efficiency is high for a shorter distance.
It is used generally up to 3 meters but some special cases it is up to 8 to 10 meters also.
Permits high-velocity ratio up to 8:1 because of no-slip takes place in this drive.
Transmit more power than belt drive.
Maintenance is low.
Chains are made up by metal so chain occupies lesser space than belt drive and rope drive.
It permits higher speed ratio of 8 to 10 in one step.
It can be operated under any atmospheric conditions.
It has the ability to transmit motion to various shafts by only one chain.
Easy to install and repair.
Good service life.
Lesser loads are put on the shafts.

Advantages of liquid cooling system

The liquid cooling system takes away the excessive heat generated in the engine and saves it from overheating. It also keeps the engine at working temperature for efficient and economical working. Let us have a deep insight into the advantages provided by using this liquid cooling system.

Advantages of the liquid cooling system :

The compact design of engines with an appreciably smaller frontal area is possible.
The fuel consumption of the high compression liquid-cooled engine is lower than that of the air-cooled engine.
Because of even cooling of cylinder barrel and head due to jacketing makes it possible to reduce the cylinder head and valve seat temperature.
Installation is not necessarily at the front of the mobile vehicles, aircraft as the cooling system can be conveniently located wherever required. This is not the case in the air-cooled engine.
The size of engines does not involve serious problems as far as the design of a cooling system is concerned.
In case of air-cooled engines particularly in high horsepower, range difficulty is encountered in the circulation of requisite quantity of air for cooling purposes.

Advantages of air cooling system

Air cooling system is carried out to the outer parts of the engine is radiated and driven away by the air stream obtained from the atmosphere. For efficient cooling fins are provided around the cylinder and cylinder head to increases the contact area. Air colling system mainly depends upon the following factors.

The total area of fin surface
The velocity and amount of the cooling air
The temperature of fins and of the cooling air

Let us have a deep insight into the advantages provided by the air cooling system.

Advantages of air cooling system :

The design of engines becomes simpler because no water jackets are required in this system.
The cylinder can have identical dimensions and be individually detachable and therefore cheaper to renew in case of an accident.
No danger of coolant leakage.
Minimum maintenance problem because of the absence of cooling pipes and radiator.
The engine is not subject to freezing trouble.
The weight of the air-cooled engine is less than that of the water-cooled engine.
Power to weight ratio is improved in this system.
An engine is rather a self-contained unit as it requires no external components like radiator, header, tank etc.
Installation of air-cooled engines is very easy.

Advantages of electronic fuel injection

Replacing carburettors with electronic fuel injection (EFI) for delivery of fuel on engines has numerous advantages. However, for each engine installation, achieving these benefits requires a comprehensive integration and calibration. The spark-ignition engine with an electronic fuel injection system compared with a carburettor unit have the following favourable points.

Advantages of electronic fuel injection system :

Improvement in volumetric efficiency due to relatively less resistance in intake manifolds, resulting in less pressure loss.
Manifold wetting is eliminated by injecting fuel near the cylinder.
Automation of fuel is independent of cranking speed so the starting will be easier.
Better atomization and vaporization will reduce the knock on the engine.
It eliminates ice formation on the throttle plate.
Position of the injection unit is not so critical so the height of the engine can be less.
Distribution of fuel being independent of vaporization.
Less volatile fuel can be used.
Variation of air-fuel ratio is almost negligible.
This system produces around 5% to 10% more power than a carburettor engine.
This system will not only improves reliability but also reduces the amount of routine maintenance that is required.
Excellent starting.
Complete altitude compensation in full load or low load conditions even in cold weather condition there is one cold start injector too.

Advantages of using alcohol as a fuel

Alcohol can be obtained from nature and it can manufacture very easily so alcohol as a fuel is very attractive. It is one of the liquid fuel alternatives of gasoline used in a combustion engine. There are different types of alcohol but some main types are methanol, ethanol, propanol, and butanol. Let us have a deep insight into the advantages of alcohol used as a fuel.

Advantages of alcohol as a fuel :

No problem of availability can be obtained from a number of sources.
Reduce dependent on fossil fuel.
It is a high octane number with anti-knock index numbers of over 100.
Alcohols have a higher flame speed.
It produces less overall emissions compared to gasoline.
When alcohol is burned, it forms more moles of exhaust gases, which gives higher pressure and more power in the expansion stroke.
It gives a cooler intake process because it has a high latent heat of vaporization.
Volumetric efficiency is high.
Alcohol is ultraclean and has low sulpher content in the fuel.
Alcohol contains oxygen thus it requires less amount of air for stoichiometric combustion.
Alcohol possesses high latent heat of vaporization thus low intake temperature and increases volumetric efficiency.
It can run efficiently by a high compression ratio.

Advantages of using hydrogen as a fuel

Due to low molecular mass and high hydrogen combustion temperature, hydrogen is the most efficient chemical rocket fuel, but the main drawback is extremely low density, which means you need very large tanks. Hydrogen works superbly for fuel cells and has no carbon to burn things up cleanly, producing the most energy of any chemical fuel per unit mass. Let us have a deep insight into the advantages of hydrogen using as a fuel in this article.

Advantages of hydrogen as a fuel :

Low emission. The exhaust does not contain CO or HC because the fuel does not contain carbon. H2O and N2 and NOx would be the most exhaust.
Fuel availability. There is a number of different ways to produce hydrogen including electrolysis of water.
Fuel leakage to the environment is not a pollutant.
High energy content per volume when stored as a liquid so the fuel tank is very large.
Unlike fossil fuel and non-renewable sources, there is no concern about running out of hydrogen at any time.
Hydrogen is a completely non-toxic, clean and powerful source of energy.
In fact, it is also used as fuel in rockets, it is more powerful.
Compared to gas and diesel, hydrogen can produce more energy per pound of fuel, making it more fuel-efficient. Cars powered by hydrogen fuel cells can operate more miles than cars powered by solar or gas or any other fuel-powered vehicle.
If we used hydrogen as a fuel, maintenance is affordable.
Its supply in the atmosphere is abundant.
Hydrogen fuel does not degrade.

Advantages of cast iron

Cast iron is an iron and carbon alloy that contains more than 2% of carbon. Cast iron is classified on the basis of the distribution of carbon content in their microstructure.

Grey cast iron
Malleable cast iron
Ductile cast iron

Let us have a deep insight into the advantages of cast iron in this article.

Advantages of cast iron :

It is available in large quantities and is produced on a mass scale.
The tooling required for the casting process is relatively simple and inexpensive results the cost of cast iron components is less.
Without costly machining operations, cast-iron components can be given any complex shape.
Cast iron has a higher compressive strength.
Cast iron has an excellent ability to dampen vibrations, making it an ideal choice for guides and frames for machine tools.
Cast iron has greater wear resistance even under boundary lubrication conditions.
The mechanical properties of cast iron parts do not change between room temperature and 350 degrees.
Cast iron parts have low notch sensitivity.

Because of these advantages, it has widely used in to make cookware components and many other applications.

Advantages of muff coupling

Muff coupling is also called sleeve coupling is the simplest type of rigid coupling that consists of a hollow cylinder whose inner diameter is the same as shaft. It is fitted over the ends of two shafts by means of a gif head key and power transmitted from one shaft to other by means of a key and a sleeve. Now, in this article, let us have a deep insight into the advantages of muff coupling.

Advantages of muff coupling :

Muff coupling is the simplest form of coupling with consisting of only two parts are sleeve and key.
It is simple to design and manufacturer.
It is cheaper than other types of coupling.
It has compact construction with small radial dimensions.
It has no projecting parts except the key head.
The external surface of the sleeve is smooth this gives safety to the operator.

Advantages of threaded joints

Threaded joints are widely used in mechanical assemblies its been like 60% of the parts have made by threads. Some advantages are due to the popularity of threaded joints.

Let us have a deep insight into the advantages provided by threaded joint below.

Advantages of threaded joints :

Threaded joints are reliable joints no loosening of the parts that are held together by means of large clamping force.
The parts are assembled using a spanner and the spanner length is large compared to the thread radius, so the mechanical advantages are greater and the force required to tighten the joint is small.
It has small overall dimensions resulting in a compact construction.
The threads are self-locking in order to place them in any position (also vertical, horizontal or inclined).
For the threaded components, high accuracy can be maintained.
Manufacturing of thread is very simple.
The thread can be easily detached when needed in threaded joints.

Advantages of friction clutch

A friction clutch transmits the power by means of friction developed between contacting surfaces. The friction surface is flat and perpendicular to the axis of rotation. Single plate and multi-plate, centrifugal clutches and cone clutches are an example of this type of clutch. Now, let us have a deep insight into the advantages provided by a friction clutch.

Advantages of friction clutch :

The engagement is smooth.
Power loss and consequent heat generation do not create problems because of slip occur only during engaging operation.
Once the clutch is engaged, there is no slip between the contacting surface.
Friction clutch serves as a safety device.
In friction clutch wear is low.
Capable of transmitting partial power.
Minimum shock during the engagement.
Easy to operate.

Advantages of powder metallurgy

Powder metallurgy is the process like in the name given metallic powders are heated below their melting temperatures to achieve bonding. Let us have a deep insight into the advantages of powder metallurgy to know more about it.

Advantages of powder metallurgy :

The powder metallurgy parts can be produced to the net-shape requiring very little surface finishing operation.
If we want higher dimensional accuracy coning or sizing operation can be used.
It is possible to achieve a surface finish between 0.80 to 1.20 micron.
It does not cause any waste products during the processing.
It is very economical just some complex shapes which can not be economically machined.
It is possible to produce parts with a combination of materials that is not possible by another process. Example - metals and ceramics can be mixed.
Automation of this process can be easily accomplished.
Due to automation reducing labour requirements and so low labour cost.
This process provides controlled porosity.
Tungsten and tungsten carbide can also be acquired by a powder metallurgy process while not acquired by other processes.
Huge potential savings in production so it is also used for mass production.
Raw materials are easily obtainable and relatively inexpensive.
By using powder metallurgy very little scrap is generated.
Parts that are produced by this process have sound and vibration damping properties.
Parts that are produced by this process have good chemical homogeneity.
It can produce complicated forms with a uniform microstructure.

Advantages of hydraulic shaper

Shaper is a type of machine which, using hydraulic power, provide linear relative motion between the workpiece and single-point cutting tool to a linear path. Under high pressure, oil is pumped into the piston-fitted operating cylinder. This machine gives the following advantages.

Advantages of hydraulic shaper :

The cutting speed and return speed of this shaper is practically constant throughout the stroke thus work done is uniform during the cutting stroke.
The reversal of the ram is obtained quickly without any shock as the oil on the other end of the cylinder provides cushioning effect.
An infinite number of cutting speeds may be obtained and its control is also easier. speed range varies from zero to the maximum value.
Because of the high rate of return speed, a greater number of cutting strokes may be available within the range of cutting speed.
The relief valve ensures safety to the tool and the machine when the machine is overloaded.
Wide range of speed can achieve by controlling the fluid flow rate to shaper ram.
Shock and vibration levels can reduce.
Higher load-carrying capacity.
Fluid on both sides of the ram provides a cushioning effect.
Highly efficient.

Advantages of vertical boring machine over lathe machine

The vertical boring machine may be looked like a vertical lathe with its headstock resting on the floor and its large faceplate or chuck lying in a horizontal plane. This specified vertical boring machine design offers some advantages over a lathe machine. Let us have a deep insight into the advantages below.

Advantages of a vertical boring machine :

Large diameter and heavy workpiece may be set up more conveniently and quickly than on lathe machine.
The table and the work it carries rotate in a horizontal plane, and there is no overhang as in the lathe spindle, and any chance of bending the spindle which supports the heavy workpiece is eliminated.
The diameter of the table may be designed as large as possible to support large workpieces.
Multiple tooling may be adapted in case of a vertical boring machine with its turret type tool post, as a result, increasing the rate of production.

Pages

Pros or Advantages of sound energy:

Advantages or pros of Gas welding:

Advantages or pros of arc welding:

Disadvantages or Cons of arc welding:

Advantages of dual carburettor :

Why are double barrel used in the carburettor?

Advantages of multiple venturi carburetion system :

Advantages of permanent mould casting :

Advantages of gear drive :

Advantages of a chain drive :

Advantages of the liquid cooling system :

Advantages of air cooling system :

Advantages of electronic fuel injection system :

Advantages of alcohol as a fuel :

Advantages of hydrogen as a fuel :

Advantages of cast iron :

Advantages of muff coupling :

Advantages of threaded joints :

Advantages of friction clutch :

Advantages of powder metallurgy :

Advantages of hydraulic shaper :

Advantages of a vertical boring machine :

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