In this article we will discuss about the mechanics of machining operation. And also learn about:- 1. Mechanism of Chip Formation 2. Mechanics of Chip Formation 3. Heat Generation and Cutting Tool Temperature 4. Failure of Cutting Tool and Tool Wear 5. Cutting Tool Materials 6. Tool Life and Machinability and 7. Cutting Fluids. Before […]
Mechanics of Machining | Manufacturing Science
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Cast-Iron: Manufacture, Composition, Types, Properties and Uses | Engineering
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In this article we will discuss about:- 1. Manufacture of Cast-Iron 2. Composition of Cast-Iron 3. Types 4. Properties 5. Uses 6. Castings 7. Types of Castings 8. Characteristics of a Good Casting 9. Defects in Casting. Manufacture of Cast-Iron: The cast-iron is manufactured by re-melting pig-iron with coke and limestone. This re-melting is done […]
How to Manufacture Pig Iron: How Pig Iron is made?
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Guide for manufacturing and making Pig Iron. Following three distinct operations are involved in the manufacturing process of pig-iron: (1) Dressing (2) Calcination and roasting (3) Smelting. (1) Dressing: The iron ores as obtained from mines are crushed into pieces of size of 25 mm diameter. This is achieved in the rock crushers of ordinary […]
How to Prevent Corrosion of Ferrous Metals? (Top 10 Methods) | Engineering
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Following are the methods which are usually adopted to prevent the corrosion of ferrous metals: 1. Coal Tarring 2. Electroplatings 3. Embedding in Cement Concrete 4. Enamelling 5. Galvanizing 6. Metal Spraying 7. Painting 8. Parkersing 9. Sherardising 10. Tin Plating and Terne Plating. Method # 1. Coal Tarring: In this method, the iron is […]
Corrosion of Metals: Causes, Factors, Theories, Forms and Effects | Metals | Engineering
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In this article we will discuss about:- 1. Meaning of Corrosion 2. Causes of Corrosion 3. Factors 4. Theories 5. Forms 6. Effect 7. Corrosion of Ferrous Metals 8. Corrosion of Non-Ferrous Metals 9. Standard Electrode Potential 10. Prevention of Corrosion of Steel in Concrete. Meaning of Corrosion: The term corrosion is defined as an […]
Griffith Theory of Brittle Fracture | Metallurgy
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Griffith attributed the discrepancy between the observed fracture strength of crystals and the theoretical cohesive strength to the presences of flaws in brittle materials. This theory is applicable only to perfectly brittle material such as glass, and cannot be used directly to metals. However, Griffith’s ideas formed a base to understand the fracture in metals. […]
Solid Solution of Metals: With Diagram | Metallurgy
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In this article we will discuss about:- 1. Introduction to Solid Solution of Metals 2. Types of Solid Solutions 3. Hume Rothery’s Rules for Primary Substitutional Solid Solubility. Introduction to Solid Solution: When the liquid solution of two metals crystallises, and if a solid of only single crystal structure forms, then a solid solution has […]
How to Determine Phase Diagram? (4 Methods) | Metallurgy
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Quite a large number of phase diagrams of metal systems are available, but repeated investigations, with refinements in apparatus and techniques, lead to their frequent revision. No one method is best for all alloy systems, or even to locate all the boundaries in one alloy system. A diffusion couple is used to get the number […]
4 Main Types of Binary Diagrams | Metals | Metallurgy
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The following points highlight the four main types of binary diagrams. The types are: 1. Solid Solution Systems 2. Insoluble in the Solid State 3. Soluble in the Solid State 4. Peritectic Reaction. Binary phase diagrams are based on two component systems. Here, the two components may be mixed in an infinite number of different […]
4 Main Types of Point Defects in Crystals | Metallurgy
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Various types of point defects are: 1. Vacancy 2. Interstitialcy 3. Frenkel Defect 4. Impurity Atoms. A point defect is a very localised disruption in the regularity of a lattice. It is a defect of dimensions just like a point (zero dimensions). The size of the defect could be one atom, or two atomic diameters, […]