NOTES ON SWAGING OPERATION !!

Swaging is a metal forming process of reducing diameter of a rod or tube by forcing it into a die with the help of reciprocating blow. This plastically deforms the metal and force it to flow into die and acquires die cavity shape. The fundamental concept is similar to forging process but the difference is that it uses reciprocating die for repeated hammering, which forces the metal into die. The die cavity contain the exact shape which we want to produce on rod or tube. This process is used to form screw drivers, soldering iron tip etc.

It is a cold working process. The process takes place in two parts.In the first part of this process, a circular rod or tube is made by other metal forming processes like forging, extruding, drawing etc. This rod have exact dimension which we require in final product. Now the actual swaging process occurs.

The second part is also known as rotary swaging in which rod or work piece made by other processes is held stationary into a swaging die and a movable die rotates around it. This rotating die has some reciprocating components which allow to strike the work piece at a rate 10 – 20 stroke per second. Many blows are required to complete forming of work piece. It forms a cavity according to the die on the work piece. This process is mainly used to point the end of the work piece or convert the end into desired shape as required in screw drivers, small hand tools etc. It is also used to produce hollow drive shaft, shock absorber etc.

ALL ABOUT BRAKE BOOSTER !!

Brake Booster is a brake safety component that is placed at intermediate position between brake pedal and brake master cylinder and works as force multiplication component that uses engine vacuum to multiply the force applied by the driver on the brake pedal before further sending it to the master cylinder which in turn provide effective braking as well as driver’s comfort in applying brakes.

Why brake booster is required?

1.)The brake force applied by the driver on the brake pedal is not enough to provide enough braking force to stop or de-accelerate the vehicle, so there is a need of multiplying the force initially and this multiplication of force is done by brake booster to cause an effective braking.

2.)We need brake booster for smooth actuation of brakes.

3.)Brake booster is considered as the preventive braking measure taken to prevent driver and passengers as it decreases the chances of brake failure and also as it makes the braking more efficient and helps in case of panic braking.

4.)In case of high speed super and hyper car which goes over 250 miles per hour the use of brake booster becomes very essential as they requires high braking force to stop or de-accelerate the vehicle at such a high speed.

5.)In case of heavy vehicle as due to their heavy weight the brake force or frictional force required to stop or de-accelerate such vehicles is quite high, which can be fulfilled by the use of brake booster.

WHY BLACK DOTS ARE THERE AT THE SIDE OF CAR'S WINDSHIELD ?? MYSTERY SOLVED !!

Although most of us are aware with the purpose of objects like the headlight, courtesy light, and rear view mirror, yet, there still are many features of your automobile which may seem useless to you but do a great job. One such feature is the presence of black dots which stare at you, right in the face, from your windshield.

These black bands are called the FRIT, are baked in a ceramic paint. The car’s windshield is held in its place through sealant, which also keeps out the water during rainfall. However, the sealant can degrade on exposure to sun’s ultraviolet rays. Therefore, the frit protects it from excessive sunlight exposure. Besides that, the frit also helps in covering up the glue on the edge of the windshield, which would otherwise ruin the aesthetics of the car.

The black dots of varying gradient that rise from the frit make your car look aesthetically appealing as they form a nice contrast with the windshield.