MMET 206 Lab Report No 1

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Texas A&M University *

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206

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Mechanical Engineering

Date

Apr 3, 2024

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pdf

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6

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MMET 206 Lab Report No.1 / Lab No.8 Introduction to Standards / Slip Casting Oda Kristine Borgstroem Section #503 09/07/2022
Introduction / Purpose: In this lab we are being introduced to standards. We are learning the importance of standards and why we have standard. The two standards being discussed in this lab is ISO (International Organization for standardization) and ASTM (American Society for Testing and materials). In this lab we also learn how to access and read both ISO and ASTM standards. In this lab we were also introduced to lab 8- slip casting. We are making a ceramic cup out of clay. Ceramic materials are non-metallic materials made of covalent and ionic bonds. This lab will include learning how to the slip casting method and other items can be manufactured using this method. This lab also contains reviews of the ceramic materials properties. Approach / Method: We use standards every day to test advanced materials or manufacture household appliances. The reason why we have standards is to ensure reliability, safety, and promotion of technology. The procedure for accessing the ASTM standards is referred to Appendix 1 in the lab manual. For accessing the ASTM standards, you go to library.tamu.edu and click on the databases icon. Then in the search box you type ASTM standards and click the search icon, and then a new database search will appear. Click on the ASTM compass and then you will need to log in with your NET ID. After you have logged in, you will use the search box to search for desired standard. Once you have your desired standard, select the latest version, and click the download PDF button. To save it to your computer click on the save button top right corner. We also started on lab 8 in this lab. In this lab we are learning about slip casting and how we can use this process to manufacture other items as well. For part A of the lab, we are assigned a ceramic cup of clay and mold. First, we take out the clay cup out of the mold, then we stared to trim, cut, and smoothen the edged and excess parts that came out of the mold. After I am satisfied with the cups shape and trim, I put it up for drying. This was Part B. We only did Part A and B for this lab. The rest of the steps will be finished in later labs. Data / Results: 1. The corresponding ASTM standard for test method for Tensile Properties of Plastics is: ASTM D638-22 Standard Test Method for Tensile Properties of Plastics 2. The corresponding ASTM standard for test method for determining the Izod Pendulum Impact Resistance of Plastics is: ASTM D256-10(2018) Standards test method for determining the Izod Pendulum Impact Resistance of Plastics. 3. Printouts from the first pages of the standards mentioned above can be found at the last two pages of the report.
4. A standard topic of my interest would be Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel. The standard number is ASTM A488/A488M-18e2 5. The reason why the topic in question 4 is important is because the processes in this standard required the right equipment and can be dangerous if not done correctly. The standard explains how you can use these processes in a safely manner. It also contains which metals and measurements to use which is important for the manufacturing to be successful. One thing I learned from this standard is that it contains many ways to test different materials. Four tests are used in the qualification procedure, Tension test measure the strength of groove-weld joints, Bend test check the degree of soundness and ductility of groove-weld joints, Charpy impact test determine the impact of strength of weld metal deposited in groove-weld joints, and Radiographic test may be used to prove the ability of operators and welders to make sound welds.
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Standards test method for determining the Izod Pendulum Impact Resistance of Plastics.
Standard Test Method for Tensile Properties of Plastics x
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