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Tessting a Theory

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Submitted By donovan010
Words 433
Pages 2
Experimental Research investigation: Theory, heat causes metal to return to its original shape.

Test subject: A 1970 Jeep CJ5 (civilian Jeep) series that has a dent in the right rear side panel. I have conducted experimental research on the properties of metal to determine the best process to use to remove the dent and return the metal to its pre accident appearance, safety, and functionality.
Type of informal research conducted: Cause and effect (metallurgical reactions using heat versus cold straightening).
To conduct our research I started by collecting data on the type of metal used to form the side panel of the Jeep CJ5 . Through research we found that the metal was “common carbon steel” which originally was “stamped” by the manufacturer. Through our research we found that the carbon steel used in 1970 had a low percentage of carbon which allows the metal to be malleable and easy to manipulate.
We started our experiment on a test subject piece of flat carbon steel which mimicked the properties of our subject CJ5.
To change the shape of the test subject metal we introduced harm to the metal by hammering the surface. This form of experimental manipulation allowed us to produce a test subject that was chemically similar to our controlled subject. First, we used heat on the test metal to soften it. This type of manipulation is called Annealing and causes the molecules in the metal to change form therefore changing the properties of the metal. The effect of our experiment was an unwanted condition which made the metal hard and reduced its malleability or ability to be compressed while increasing its ductility or shear strength (ability to be stretched).
Through our manipulation of our experimental piece of metal we found that applying heat to the metal did not produce a desired effect. We found that manipulating the surface of the test subject without

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