Tempering
The martensite which is formed during quenching is too brittle and hence cannot be used in many cases, the residual
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Hardening Process
Process of Hardening Purpose To increase the hardness of steel to maximum extent by austenite to martensite transformation. To increase the
Read MoreNormalizing
It is the heat treatment process which is given to a product, which are subjected to relatively higher stress, the
Read MoreCrystal imperfections
Classification of Crystal imperfections Crystal imperfections can be classified as: Point defects Interfacial defects Line defects Volume Imperfection Types of
Read MoreComparison of Rolling and Sliding Contact Bearing
Hydrodynamic Bearing Higher starting friction (torque) Load carrying capacity vary directly with speed. It is suitable for shock, fatigue. It
Read MoreBearing Material Properties
High compression strength High endurance endurance strength to avoid failure due to pitting. The bearing material should be soft to
Read MoreMCKEE Investigation
It is done for hydro-dynamic bearing. Transition Graph From Thin Film to Thick Film Bearing characteristic number = μN/p, it
Read MoreSliding Contact Bearing
Thick Film Lubrication In this, two surface of bearing in relative motion are completely separated by a film of fluid.
Read MoreType of Rolling Contact Bearing
For starting condition and at moderate speeds, the frictional loss in rolling contact bearing are lower than that of equivalent
Read MoreRolling Contact Bearing
Classification of Bearing Depending upon type of friction Sliding contact bearing, e.g., plain bearing, journal bearing, sleeve bearing. In this
Read MoreCaulking and Fullering
Important Terms Used in Riveted Joint Pitch: It is the distance from the centre of one rivet to the centre
Read MoreTypes of Riveted Joints
Material of Rivets The material of the rivets must be tough and ductile. They are usually made of steel, brass,
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A rivet is a short cylindrical bar with head integral to it. The cylindrical portion of the rivet is called
Read MoreStrength of Welded Joints
(i) Strength of Butt Weld A butt welded joint, subjected to tensile force P, is shown in given figure. Here,
Read MoreTypes of Welded Joint
Butt Joints A butt joint is defined as a joint between two components lying approximately in same plane. It connects
Read MoreWelded Joints
Welding is a process of joining metallic parts by heating to a suitable temperature with or without application Advantages of
Read MoreBolted Joint
Bolted Joint Threaded fastener designed to pass through holes in mating members and to be secured by tightening a nut
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A fastener is an important component, as a machine is a large structure and requires joining elements to connect different
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