Today we will discuss types of welding flames.There are mainly three types of flames used in welding, they are:- 1) Natural Flame or Neutral Flame:-It is called natural flame because when we do welding with this flame no chemical reaction takes place. Also, this flame produces very little smoke.Neutral flame has equal oxygen and gas…
Normalizing is the process of heating of metal that alters the properties of metal like tensile strength, ductility and also refines the grain structure.It is a type of heat treatment applicable to ferrous metals only.In the normalizing process, the material is heated to elevated temperature and after that, it is cool back by placing it…
Cutting tool materials are the materials of the cutting tool present in the machines which are used in different machining processes like turning, shaping, slotting, etc. Here we are not talking materials of cutting tools like knives. Properties of cutting tool material: 1) Hot or Red Hotness:It is the ability of the cutting tools to…
Gas Welding is the process where two or more parts of the metal are joined or united by melting them using the heat transmitted by flame produced by the reaction of oxygen and fuel gas.Gas Welding is also called oxy-fuel welding. It is called oxy-fuel welding because in this process oxygen is used with burning…
Cutting fluid is a fluid that is mainly used to remove the heat produced during the metal cutting and other machining processes. It is also used as a lubricant in some cases.They are also used for improving the cutting condition and also the tool life.Cutting Fluids reduce the friction between the tool and the chip…
Ericsson Cycle is a thermodynamic cycle which consists of constant pressure heat addition and rejection.The Ericsson Cycle is named after its Swedish inventor John Ericsson. Many heat engines based on various thermodynamic cycles were but by him.Ericsson was also responsible for the early use of the screw propellor for ship propulsion built in 1842.The first…
Mcleod Gauge is an instrument used to measure very low pressures nearly 10-6 Torr. This device is named after its inventor Herbert Mcleod. It was invented by Herbert Mcleod in the year 1874.The shape of the Mcleod Gauge is similar to the mercury manometer which is the most common instrument used for the measurement of pressure….
Streamline flow is the flow in which all conditions at any point in a stream remain constant with respect to time. Properties Of StreamLine Flow:i) In streamline flow, liquid flow per second through any cross-sectional area is constant.ii) Also in streamline flow, at every point, the velocity (both magnitude and direction) of every fluid particle passing through that point…
Fusion welding is the welding process in which two or more materials of similar composition or melting points are joined or fused with each other by melting the materials.In many of the fusion welding processes, the filler material is added to the molten pool of metal required but some fusion welding can be carried out…
A torsion pendulum consists of an inextensible string clamped at one end and fixed to a rigid body at the other end. This simple apparatus consisting of a clamped wire coupled to a rigid body constitutes a torsion pendulum. When the disc or body is given a small angular displacement, the rod or wire will twist….