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ME Mechanical
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Online Portal for Mechanical Engineers
Online Portal for Mechanical Engineers

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Blog post on Shielding Gases - Shielding gas is commonly used in factories to prevent the molten metal from the harmful effect of the air. Even small amounts of oxygen in the air will oxidize the alloying elements and create slag inclusions. Nitrogen is solved in the hot melted material but when it solidifies the solubility decreases and the evaporating gas will form pores. Nitrogen can also be a cause of brittleness. The shielding gas also influences the welding properties and has great im...
Notes on Shielding Gases
Notes on Shielding Gases
me-mechanicalengineering.com
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Blog post on Shaping Ceramics - Several techniques (slip casting, extrusion, dry pressing, wet pressing, hot pressing, isostatic pressing, jiggering and inspection molding) are available for processing ceramics into useful products (shown in below table 1), depending on the type of ceramics involved and their shapes. Production of some ceramic parts (such as pottery, floor tiles) generally doesn’t involve the same level of control of materials and processes as do high-tech components (made ...
Notes on Ceramics Shaping
Notes on Ceramics Shaping
me-mechanicalengineering.com
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Blog post on High-Speed Steels (HSS) - High-Speed Steels (HSS) are the cutting tool materials used for machining of materials. The HSS will be used for machining of materials. The General use of HSS is 18-4-1. 18% of Tungsten or Molybdenum, used for increasing hot hardness temperature of tool material. 4% of Chromium, used for increasing the strength of resistance to deformation of the cutting tool material. 1% of Vanadium, used for improving the wear resistance of the cutting tool material...
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Blog post on Comparison Between Fire Tube and Water Tube Boiler - Comparison between Fire Tube and Water Tube Boiler can be done in 14 aspects. Those aspects are operating pressure, passage of material type in tubes, rate of steam generation, handling of load fluctuation, floor area requirement, efficiency, operator skills, design, maintenance cost are listed below in the tabular form. S.No Fire tube boiler Water tube boiler 1 In Fire-tube boilers hot flue gases pass through tubes and water...
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Blog post on Deburring Operation - Deburring Operation Deburring tool is used to remove burrs. Burrs are thin ridges, usually triangular in shape and they are usually an unwanted piece of material that develop along the edges of a workpiece from operations such as machining, shearing sheet metal, and trimming forgings and castings. Burrs can be detected by simple means, such as with a finger, toothpick or cotton swab. Visual inspection of burrs includes the use of magnifiers and microscopes...
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Blog post on Ever Wondered why Rolex Watches are so Expensive? Watch this.. - If you have ever wondered ever why Rolex Watches are so expensive you can watch this video made by Watchfinder & Co, on demonstration of Rolex Submariner DATE Oyster, how it is being disassembled each part, showing the intricacies work involved in hand making the timepiece in exquisite detail. In 1950’s, time these Rolex watches were not as expensive. These Rolex Submarine watches are revealed to the public in the...
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Blog post on Rocket Propellant: Solid and Liquid - The rocket propellant is the chemical mixture burned to produce thrust in rockets and consists of a fuel and an oxidizer. Fuel is a substance that can be in a liquid or solid state, burns when combined with oxygen producing gases for propulsion. An oxidizer is an agent that releases oxygen in combination with a fuel. Rockets propellants can be classified according to their state as Solid propellant Liquid propellant and Hybrid (a mixture of...
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Blog post on Safety Measures while Working with Electrical Machines - When operating with electrical machines, operator or user for the first time should be careful to avoid accidents. Based on the experience of many experts, some rules and regulations have been made for the handling of electrical appliances. In industry, an inquiry is normally ordered for the electrical accident. Items carrying electricity should be properly insulated. Aging of insulation withstand capacity and should not ...
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Blog post on Types of Keys (Mechanical) - A key is a machine element fitted in an axial direction into the mating member, such as pulleys, gears. The primary function of the key is to prevent the relative rotation between the shaft and mating member. In most of the applications, the secondary function of the keys is to prevent the relative rotation between the shaft and mating member. In most of the applications, the secondary function of the keys is to prevent relative movements in the axi...
Types of Keys (Mechanical) ~ ME Mechanical
Types of Keys (Mechanical) ~ ME Mechanical
me-mechanicalengineering.com
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Blog post on Heat Exchanger Analysis - The flow in the heat exchanger is considered under steady-state and fully insulated at the outer surface. Consider an infinitesimal part of the heat exchanging tube of area dA, where temperatures of hot and cold fluid are Th and Tc, respectively. The figure below shows the temperature profile along the direction of flow in parallel flow and counter flow heat exchangers. Figure 1: Temperature profiles in parallel flow and counter flow heat exchangers Th...
Heat Exchanger Analysis ~ ME Mechanical
Heat Exchanger Analysis ~ ME Mechanical
me-mechanicalengineering.com
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