Many years ago, the front and rear bumpers of cars were mainly made of metal materials. Later, they were replaced by plastic bumpers. Why are bumpers made of plastic? Mainly based on practical use and pedestrian safety considerations.
Quote a little story that happened around you. Recently, a friend got his driver's license. He accidentally bumped into it!
She felt lucky because the bumper wasplastic and it would bounce back when it was dented. Due to the low speed, the car just dropped a little paint, almost no damage.
So the question came. She asked in surprise, "why, the car bumper is plastic! Why?!"
Question: car manufacturers cut corners?
It's hard to say that many people really know that the bumper is made of plastic, but they don't know why it doesn't use metal materials. Some people may think that it must be Jerry built by automobile manufacturers!
Misunderstanding: This is how the misunderstanding came into being
Many years ago, the front and rear bumpers of cars were mainly made of metal materials, which were usually stamped with steel plates and riveted or welded with the frame longitudinal beams. But then there's a better alternative, plastic bumpers. Do you know who is the first brand to launch a car with this solution? It's Fiat.
Why are bumpers made of plastic? There are many reasons. Let's talk about a few simple reasons!
Reason 1: pedestrian safety considerations
The reason is very simple. If the same car is driven at the same low speed (note, it's a low speed, high speed is not OK), it will hit a pedestrian directly. Imagine if you were the one who was hit, would you like the bumper to be metal or plastic?
If you don't want to understand, please try to find relevant metal and soft plastic blunt tools to hit your head.
Reason 2: Based on actual use
Because most bumpers are made of elastic materials, they have good impact resistance. This means that small bumps and bumps can be easily resolved, and even if the paint is off, the difficulty of painting is not great. This is a good way of "one cheap and two profitable" - car owners of car companies, who can save time and money.
What's more, it should be noted that if the bumper is made of plastic, the corrosion resistance will be better. Otherwise, if the bumper is often rusty, the owner will be bored.
Reason 3: convenient for automobile design and production
Automobile production has been moulded. In addition to the high-strength materials, many parts will be made of lightweight, corrosion-resistant, easy to process, easy to form, easy to repair and replace materials.
This is true of the front and rear bumpers. Some exterior parts, such as wings, may also be made of lightweight materials such as plastics. Of course, some of the top sports cars will also use a large number of carbon fiber materials to replace metal materials on the outer body. The purpose is simple: the body is lighter, the brake is faster and safer, and the fuel consumption is also higher.
If all the parts of the car are made of metal materials, how much should the car weigh? If an emergency is found at high speed, do you want to slow down and brake in an instant? hard!
summary
Now, it's probably understandable why car bumpers are plastic, right? But don't think it will make the car unsafe. The overall safety and coordination of the car are not that the harder the parts are, the safer the car will be.
