This video shows how the bumpers are made. They can be made by steel, plastic and aluminum. In that video they make with steel. It is made by 2mm steel. They make it in particular shape using 200 tons of pressure force. The bumper surface must be impacibily smooth so they go through some blades. It first submerging the bumbers in several cleaning tanks. They clean it with chemicals and which chemicals are used is secret. This was the most ineteresting part to know that their chemical cleaning important and secret. First tank applies nickel for protecting it from steel oxidation and second tank applies chrome layer company applies electro plating method they charge them with (+) charges. Then it goes to inspection area. Workers look to the chrome mirror under high intensive light. Then plastic component is attached to the bumpers. Plastic part covers the top of the real bumpers. Licence plate is attached to the bumper. Tightness is specified because it should absorb the force of the collision. They test the bumpers by crashing it to the wall. İt shoul handle with stress and crash energy. Their goal is to observe the impact of crash on the bumpers.
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