Building a Bumper
Metal bumpers are the superior choice over the plastic or fiberglass ones that come stock on most new vehicles. Metal is much stronger than a plastic or fiberglass one and is more damage resistant if wrecked or used in off-road conditions that might have potential harm to the front end of your vehicle.
The cost of a metal bumper is less than that of its opponents and offers better protection. Metal will also protect the vehicle in higher speed crashes, because the stock bumpers on vehicles only have to be able to withstand a five mile per hour crash. Plastic bumpers are not the best choice on a vehicle because plastic or fiberglass bumpers fracture easily, they are not as strong metal, and they cannot be modified or upgraded. Metal bumpers can have accessories bolted on, custom made, welded on. There are many cons for users of plastic bumpers, they are easily damaged, there is little protection for any body parts behind the bumper so there are more expenses from any crashes, and they are almost as expensive as metal bumpers. Manufacturer pros for plastic bumpers include; cheap and easy to manufacture, high profit margin, lower weight for better gas mileage, lower weight also means lower shipping costs, frequent replacements needed so there is more money to the producers because of the potential for repair parts (NHTSA 1-5).
There are many different kinds of steels based on all of their mechanical properties. The mechanical properties of metal are based on things like compressive strength, density, resistance to corrosion, electrical and thermal conductivity, electrical resistance, fusibility, hardness, impact strength, toughness, brittleness, the transition temperature, tensile strength, du...
... middle of paper ...
... parts. Which are almost all reasons that the consumer should not buy these bumpers, they are meant to help the manufacturer make a higher profit, not consumer safety, or quality. That is why you should choose a metal bumper.
Cary, Howard B. “Article - The History of Welding.” Article – The History of Welding. Prentice-Hall, n.d. Web. 14 May 2014.
“Miller Electric.” Miller. Millerwelds.com, n.d. Web. 06 May 2014.
NHTSA. ‘Bumper Questions and answers.’ Bumper Questions and Answers. NHTSA n.d. Web. 22 Apr. 2014
“Ultimate Guide To The Various Types Of Welding.” Ultimate Guide To the Various Types Of Welding. Go Welding.org, 2010. Web. 06 May 2014.
Jefferson, Ted B., and Gorham Woods. Metals and How to Weld Them. Cleveland: James F. Lincoln Arc Welding Foundation, 1962. Print.