KNOW WHY FILLETS ARE PREFERRED ON EDGES !!

In mechanical engineering a fillet is a rounding of the interior or exterior corner of a part. On the inlet fillets are concave while on exterior corners these are convex.We generally use fillet on the edges of almost every product.In this article we will see why fillets are used at corners.

We generally use fillets due to following reasons:

1.)Fillets are mainly used to reduce stress concentration compared to chamfers. These can easily distribute stress more uniformly.

2.)Fillets give a part better flow and less resistance. Using a fillet also eliminates any sharp edges that can be easily damaged, or that could cause injury when the part is handled. This means there is less risk of failing an inspection for having a burr or sharp edge.

3.)Industrial designers tend to prefer fillets compared to chamfers as these are considered to be visually pleasing.

4.)One of the other reasons is that protective coating like paint are more uniformly distributed over a fillet compared to chamfer. Thickness of coating is reduced on sharp corners of chamfers so coating is lost first on these spots. Fillets have no such issues due to uniform distribution of coating.

But when it comes to comparison with chamfer in terms of cost then fillet is costly due to following reasons:

1.)A chamfer requires less machining time that a fillet radius.

2.)For fillets different radii of tools has to be stocked to create different radii, but a single tool can be used for creating different chamfers.

Still fillets are more preferred as compared to chamfers by industrial designers due to its advantages.Comment down your views in comment box.

KNOW THE FUNCTION OF LINES ON REAR WINDSHIELD !!

You have probably noticed the lines on the rear windshield of your vehicle.Have you ever wondered what those thin lines running across the length of your rear window are for? We will discuss about these lines in this post.

These lines are called defoggers. These lines are electrified filaments which dissipate heat in the case your rear windows begins to fog up.A small current is passed through those embedded wires or lines, and as the current is conducted, it heats up the glass slightly—just enough to melt any snow or ice blocking your view, or eliminating any fog/condensation that was built up.Your front windshield comes equipped with defoggers, too. But since driving with a bunch of thin lines obstructing your view probably isn't ideal, it instead comes in the form of vents near the base of the glass.

All of these small details on a car may not seem to add up to much, but they are integral to the safety and comfort of the passengers, as well as the structural integrity of the vehicle itself. Next time you sit down for a long drive, pay attention to those tiny details and be grateful that someone in the car manufacturing industry thinks about the small stuff!

DIFFERENCE BETWEEN FORCE AND PRESSURE EXPLAINED !!

Force and Pressure are the two important concepts of physics which are often erroneously interchanged by the people. But, these two are not same at all, as there is a vast difference between force and pressure,we will discuss about the difference between them in this post.

FORCE:

Force is the pull or push on an object which can change the velocity of the object on which it is applied. We can say that if force is applied on an object from one direction and there is no opposing force, then the object will move. If it’s already moving, it will either get faster or slower depending upon the direction of the applied force.

PRESSURE:

Pressure can be explained as force applied on a unit area.When the force is applied over a large area, then the pressure developed.

Now have you ever wondered, why tools which are made to cut, chop, trim or pierce always have sharp edges? Or why heavy vehicles always have fat tyres? This is only due to pressure, which refers to the physical force per unit area.

The difference between force and pressure is summarized in the table given below: