Mmet 281 - Study guides, Class notes & Summaries

MMET 281 Exam 2 Questions and Answers Graded A+ Why is there a delay in the extrusion process at the very beginning? Back pressure resists the extruded part from exiting the die Define back pressure. A resistance or force opposing the desired flow of fluid Define Expanded Materials. Materials containing pores True or False: Cellular materials come in closed and open cell forms. True Describe the structure of the cells in a closed cell material. Cells are discrete and separate ...

Lab Practical - MMET 281 - Manufacturing and Assembly Processes II - Texas A&M University - TAMU - Dr. Bhaskar Vajipeyajula

Horn, shellac, gutta percha List natural polymers casein, rubber, celluloid List chemically modified polymers synthetic Bakelite is a ___ polymer strong and lightweight, corrosion resistant Egyptians used in 2000 BC for bowls, spoons, combs Facts about horn boil in water, press flat, mold into shape Making of Horn

MMET 281 Exam #2 Questions And Answers

Lab Practical - MMET 281 - Manufacturing and Assembly Processes II - Texas A&M University - TAMU - Dr. Bhaskar Vajipeyajula 100% Pass Define: Heat Deflection The temperature at which a polymer of plastic sample deforms under a specified load. Why is heat deflection useful? Because it gives an idea about how much of a load materials can withstand at elevated temperatures What are some products that would consider heat deflection in their design? Tupperware containers Microwave li...

Lab Practical - MMET 281 - Manufacturing and Assembly Processes II - Texas A&M University - TAMU - Dr. Bhaskar Vajipeyajula Exam Questions And Answers