Safety Systems in Vehicles | Seat Belts | Air bags
Seat belts safety systems in vehicles: The function of the seat belts is to restrain the occupants of a vehicle in their seats when the vehicle hits an obstacle.
Super-Plastic | Super-Plastic Forming Process
Super plastic forming process (SPF) is appreciated tool for the fabrication of complex parts used in the aircraft and automobile industries.
Trends in Common Rail Fuel Injection System | Common Rail Fuel Injection System
Components of a common rail system In the common rail system, a pressure sensor measures the fuel pressure in the rail, its signal valve is compared with the desired value stored in the engine computer. If the measured value and the desired value are different, an overflow orifice in the pressure regulator on the high…
Mechanical Fuel Injection Systems | Jerk Fuel Injection System | Distributor Fuel Injection System | Constant Pressure Common Rail System
Mechanical fuel injection systems In the year of 1927 Bosch brought the first mechanical hydraulicfuel injection system for truck diesel engines. This made diesel engines familiar among people. In1932 the complete fuel system consisting of nozzle holder assembly, nozzle, filter system was introduced. Jerk pump injection system The jerk pump controlled system has a single…
Hybrid Drive Trains | Hybrid Vehicles
Hybrid Drive Trains Hybrid vehicles The term Hybrid drive denotes such vehicle drives with more than one drive source. Hybrid drives can incorporate several similar or dissimilar types of energy stores and/or power converters. The goal of the hybrid drive developments is to combine different drive components, such that the advantages of each are utilized…
Blow Moulding Process | Rotational Moulding Process
Blow moulding Working principle In this process between the two parts of open moulds a hot extruded tube called parison is placed. The two valves of the moulds move close to each other so that the moulds closes over the tube. The parison’s bottom end is sealed. The molten plastic is mould with the help…
Heat Treatment | Purpose of Heat Treatment
HEAT TREATMENT The strength toughness of the base material are determined by its chemical composition and the heat treatment it undergoes. Low carbon steel is easily available and cheap having all material properties that are acceptable for many applications. Low carbon steel contains carbon contain of 0.15% to 0.45%. Heat treatment on low carbon steel…
Injection Moulding Process | Types of Injection Moulding Process
INJECTION MOULDING WORKING PRINCIPLE Injection moulding process is generally used to achieve high speed moulding of thermo plastic. It works on the principle that the molten thermo plastic is injected into a mould and a high pressure is applied the desired shape is obtained. Plunger system is used for achieving high pressure. OPERATION The material…
Thermo Plastics | Types of Thermo Plastics | Types of Cellulose Derivatives | Types of Synthetic Resins
Thermo plastics These kinds of plastics have long separate and large molecules arranged side by side. The various types of thermoplastics are discussed below. Cellulose derivatives Cellulose nitrate is generally obtained by treating the cellulose with a mixture of nitric acid and sulphuric acid. It has high toughness, good resistance to moisture and it is…
Electron Beam Welding | Friction Welding | Diffusion Welding
ELECTRON BEAM WELDING Principle Beam of electron is used for producing high temperatures and melting the work piece to be welded. Working When tungsten filament is electrically heated in vacuum, it will emit the electrons. These electrons carry a negative charge which is passed through the anode hole. The electron beam is focused by the…
Thermosetting Plastics | Various Types of Thermosetting Plastics
Thermosetting Plastics The plastic which are hardened by the heating is called as thermo setting plastic. this heating reaction is non-reversible. The molecules of this type of plastic have a very strong binding force. The raw material for these kinds of plastics is available in liquid or solid form. These types of plastics consume more…
Plasma Arc Welding | Transferred Type Plasma Arc Welding | Non-transferred Type Plasma Arc Welding
Plasma arc welding Principle Plasma is nothing but a high temperature ionized gas. It is generally a mixture of positively charged atoms and neutral charged atoms and free elements. When this high temperature plasma is passed through the orifice, the proportion of the ionized gas is increased and the plasma arc welding is formed. Working…
Forging Process | Types of Forging
FORGING PROCESS In this process the desired shape is obtained by the application of a compressive force over the metal. In hot forging process the metal is heated above the recrystallization temperature. This hot metal is then compressed to the desired shape using hammer or press tool. There are three types of forging process. ·…
Thermit Welding Process | Laser Beam Welding Process
THERMIT WELDING Welding the parts by using liquid Thermit steel around the portion to be welded is called Thermit welding. this is a type of fusion welding process. In this process, neither arc is produced to heat parts nor flames are used. high temperature is being obtained by the usage of the exothermic reaction. Welding…
