Brass Wedges Essay

explanatory Essay
569 words
569 words

“Serving your brass needs since 1950”
February 26, 2014
Ms. Sabrina Nilufar
Talbot Laboratories, Inc.
104 South Wright Street
Urbana, IL 61801-2958
Dear Ms. Nilufar,
I am pleased to report that the testing of your brass wedges is complete. You will find included a summary of our findings along with charts and micrographs of our results. A full laboratory report is available upon request. You are free to use these results as needed and to publish them as documentation for your finished brass products.
Four brass wedges were tested. Two were cold rolled to a thickness of 5.0 mm and two were cold rolled to a thickness of 2.5 mm. One wedge of each thickness was then annealed for 1 hour at 350 °C. Because the wedges varied in thickness across the length, multiple cold work values were able to be recorded. Hardness and thickness measurements were taken before and after the cold rolling and after the annealing as shown in Figure 1. Generally, as cold work increased, hardness increased.
As the wedges were rolled, the width slightly increased and the length significantly i...

In this essay, the author

  • Reports that the testing of the brass wedges is complete and a laboratory report is available upon request.
  • Explains that dislocations require greater stress to cross a grain boundary, which resulted in larger slip distance in the rolling direction and higher strength.
  • Explains how to produce isotropic brass strips from brass wedges by rolling them to 2.50 mm.
  • Explains that strips will be brittle after the cold work, so annealing is required to increase ductility. anneal the strips at 500 °c for 1 hour.
  • Encourages talbot to call or email him if they have any questions or concerns regarding the tests and results.
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