Cylinder liner &materials
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The document discusses cylinder liner materials used in engines. Common materials include nitrided steels, nitrided cast irons, and heat treated chromium and alloy cast irons. These materials provide at least 50% more wear resistance than the cylinder block material. A typical specification for liner material lists its composition as iron comprising 93.92-92.22%, carbon at 3-3.5%, silicon at 1.8-2.4%, manganese at 0.5-0.8%, phosphorus at 0.4-0.7%, sulfur at 0.08%, and chromium at 0.3%.
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https://sites.google.com/view/varunpratapsingh/teaching-engagements
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The document discusses the history and uses of iron. It then describes the processes of extracting iron from iron ore and manufacturing steel. Iron has been used for over 4000 years, and was first extracted around 3000 BC in Egypt. It is strong yet malleable and is used for tools, weapons, infrastructure and machinery. Iron ore is smelted in blast furnaces and cupola furnaces to produce pig iron and cast iron. Steel is made by further processing pig iron in open hearth, basic oxygen or electric furnaces.John
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Metal comes from rocks in many countries and can either sink or float. It needs to go through a machine to be used and can be used to make many things. Wood comes from trees and needs to go through a machine to be used as well, with hard wood growing slower than soft wood. Fabric can be made to make various items.weldability study of nickel super alloys
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The document discusses nickel-based super alloys, including their properties, applications, common alloying elements, and weldability issues. Super alloys exhibit excellent mechanical strength and creep resistance at high temperatures due to their face-centered cubic crystal structure and alloying with nickel, cobalt, chromium, and other elements. Weldability problems with nickel alloys include hot cracking caused by sulfur and porosity caused by nitrogen, which require careful control of welding parameters.Basic Mechanical Engineering Unit-1 Materials @ by V.P. Singh
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油
Free Download Link (Copy URL):
https://sites.google.com/view/varunpratapsingh/teaching-engagements
Unit I :
Materials : Classification of engineering material, Composition of Cast iron and Carbon steels, Iron Carbon diagram. Alloy steels their applications. Mechanical properties like strength, hardness, toughness, ductility, brittleness, malleability etc. of materials, Tensile test- Stress-strain diagram of ductile and brittle materials, Hooks law and modulus of elasticity, Hardness and Impact testing of materials, BHN, etc.
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油
This document discusses pattern allowances in metal casting processes. It provides definitions of patterns and explains the need for various pattern allowances to account for shrinkage, machining, drafts or tapers, potential distortions, and shaking during casting removal. The key allowances discussed are shrinkage allowance, machining or finishing allowance, draft allowance, distortion allowance, and shake allowance. Specific percentages and dimensions for these allowances are provided for different metals like cast iron, cast steel, aluminum, and magnesium. Dr.R.Narayanasamy - Effect of Microstructure on formability of steels - Modif...
Dr.R.Narayanasamy - Effect of Microstructure on formability of steels - Modif...Dr.Ramaswamy Narayanasamy
油
The document discusses the effect of microstructure on the formability of steels. It states that the amount of pearlite and ferrite phases affect formability, with pearlite decreasing ductility and ferrite increasing it. Finer pearlite and ferrite grain sizes increase strength but decrease formability. Spheroidizing pearlite increases ductility. The presence of inclusions like oxides and sulfides reduces ductility depending on their shape, size, and distribution. Globular inclusions perform better than elongated ones. The document also discusses how these microstructural factors affect the formability of different steel types like austenitic stainless steels.Final Poster Final Submission
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油
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油
...
Slush Casting油is a traditional method of permanent mold casting process, where the molten metal is not allowed to completely solidify in the mold. When the desired thickness in obtained, the remaining molten metal in poured out.油Slush casting油method is an effective technique to cast hollow items like decorative pieces, components, ornaments, etc.
APPLICATIONS
Some casting of pewter is cast using油slush casting油method. Using pewter and other metals mainly hollow products are casted. Decorative and ornamental objects that are casted are as vase, bowls, candlesticks, lamps, statues, jewelery, animal miniatures, various collectibles etc. Small objects and components for industry like tankard handle, handles for hollow wares, etc.
ADVANTAGES
Slush casting is used to produce hollow parts without the use of cores
The desired thickness can be achieved by pouring our the left over molten metal
A variety of exquisitely designed casting can be casted for decorative and ornamental purpose.
Ferrous material
Ferrous materialRatnadeepsinh Jadeja
油
Ferrous Material, Steel, Cast Iron, Classification steels, Role of Carbon, Effects of alloying elements, plain carbon steels, low carbon steels, medium carbon steels, high carbon steels, low alloy steels, high alloy steel, austenitic stainless steel, ferritic stainless steels, martensitic stainless steel, white cast iron, gray cast iron, ductile cast iron, malleable cast ironDr.R.Narayanasamy - Effect of Microstructure on formability of steels - Modif...
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This document discusses different types of tires. There are two main types - tubed tires which have an inner tube, and tubeless tires which do not have an inner tube. Tubeless tires have advantages like lesser weight, better cooling, lower rolling resistance, and more comfortable ride.
The document also describes different tire constructions - cross-ply/bias ply tires which have fabric plies laid across each other at alternating angles, radial ply tires which have fabric arcs from bead to bead at 90 degree angles, and belted bias ply tires which have belt plies reinforced with wire. Radial ply tires provide benefits like better shock absorption and fuel efficiency compared to cross-ply tires.1 wheels
1 wheelsshaikusmanshag
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The document discusses the materials used in car tires, including nylon, polyester, rayon, carbon black, and aramid fibers for the carcass and belts. It also discusses the components of tires like raw rubber, steel, and synthetic rubber. The aspect ratio and tire specifications are explained. Factors that affect tire life and common tire issues are outlined. The manufacturing of pneumatic tires filled with compressed air is also briefly discussed.4 tyre pressure and defects
4 tyre pressure and defectsshaikusmanshag
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Tire pressure should be checked monthly when cold and adjusted according to temperature, as it can affect mileage. Nitrogen is better than oxygen in tires as it leaks out more slowly and prevents rust and oxidation of rubber and steel. Proper inflation prevents uneven and accelerated tire wear from under or over inflation. Tire defects like separations, bulges, cracks or tears can cause safety issues and should be addressed.Recently uploaded (20)
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