In this article we will discuss about the processes used for joining metals. Learn about:- 1. Welding 2. Brazing 3. Soldering 4. Gas Cutting Process and Equipment or (Oxyacetylene Gas Cutting Process). 1. Welding: In olden days, in order to join two pieces of metals, riveting was done. But nowadays for joining two pieces of metals welding is done. So, [...]
List of Machine Tools used for Cutting Metals! 1. Centre Lathe: The lathe is the father of all machine tools. It is a universal machine tool which can be used—with certain attachment—for many processes. For its development to the form in which we now know it, we owe much to Henry Maudlsey, who developed the sliding carriage, and in 1800 [...]
Welding is broadly classified into two types: I. Plastic Welding: In this case the two pieces of metals to be joined are heated to plastic state and welding is completed by forcing them. In this case no filler material is added. II. Fusion Welding: In this case the two pieces of metal are heated and brought to molten state and [...]
Transportation planning is a complex problem. Increased facilities will change the environment and land use patterns and result in increased trips invalidating the original criteria and projections used. Increased use of operations research and systems approach to transportation planning in recent times seeks to optimise the system performance for deriving maximum benefit from the facilities. The use of mathematical models [...]
In this article we will discuss about the sheet metal manufacturing process and its operation types. Introduction to Sheet Metal Work: Most of the sheet metal work is done on presses where a die and punch or other formed tools are required. In press work large force is applied on thin sheet metals to give the required shape or to [...]
In this article we will discuss about:- 1. Definition of Quarrying 2. Sites for Stone Quarrying 3. Important Considerations 4. Methods. Definition of Quarrying: The process of taking out stones from natural rock beds is known as the quarrying. The term quarry is used to indicate the exposed surface of natural rocks. The stones, thus obtained, are used for various [...]
In this article we will discuss about:- 1. Manufacture of Common Tiles 2. Characteristics of a Good Tile 3. Types. Manufacture of Common Tiles: Following four distinct operations are involved in the general process of manufacturing the common tiles: (i) Preparation of clay (ii) Moulding (iii) Drying (iv) Burning. Each of the above operation will now be briefly treated. (i) [...]
List of commonly used ceramic products. Ceramic Product # 1. Clay Products: The clay occurs plenty in nature. The clay is a distinct product of chemical weathering of igneous rocks. The felspar is predominant in igneous rocks. One of the variety of felspar is orthoclase felspar. It is whitish, greyish or pinkish in colour. The rocks disintegrate easily, if orthoclase [...]
In this article we will discuss about:- 1. Meaning of Bricks 2. Composition of Good Brick Earth 3. Harmful Ingredients in Brick Earth 4. Classification of Brick Earth 5. Qualities of Good Bricks 6. Factors Affecting Quality of Bricks 7. Tests for Bricks 8. Classification of Bricks 9. Uses of Bricks 10. Colours of Bricks 11. Size and Weight of [...]
Learn about the comparison between brickwork and stonework. The brickwork is superior to the stonework in the following respects: (i) At places where stones are not easily available but where there is plenty of clay, the brickwork becomes cheaper than stonework. (ii) The cost of construction works out to be less in case of brickwork than stonework as less skilled [...]