Iet test 3 Part 2

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JohnLee397
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187178
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Iet test 3 Part 2
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2012-12-05 04:24:49
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Iet Test Part
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Iet test 3 Part 2
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  1. Name a noble metal
    gold, platnium, silver 
  2. gold, platnium, silver 
    Noble metals
  3. Dificult to macine magnesuim because 
    fire hazard
  4. is a fire hazard
    Magnesuim
  5. Eutectic alloy 
    particular composition in alloy system for which solids and liquids are the same temperature
  6. particular composition in alloy system for which solids and liquids are the same temperature
    Euthetic alloy
  7. Main applications of tool steel
    Industry cutting tools, dies and molds
  8. Industry cutting tools, dies and molds main applications for
    Tool Steels
  9. Four most Common Elements in the Earths crust
    Oxygen, Silicon, Aluminum, Iron
  10. Oxygen, Silicon, Aluminum, Iron
    Four most Common Elements in the Earths crust
  11. Two elements of steel 
    iron, carbon
  12. iron, carbon two elements of 
    steel
  13. Graphical Means of representing phases of metal alloys is called 
    Phase Diagram
  14. Phase Diagram is
    Graphical Means of representing phases of metal alloys is called 
  15. True of False Refractory metals can endure high temperatures 
    True
  16. What is a alloy
    metall compose of two or more elements, at least one is metallic
  17. metall compose of two or more elements, at least one is metallic
    alloy
  18. Alloying element used in certain steels to increase corrosion protection
    chronium
  19. chronium used to increase
    corrosion protection in alloying elements
  20. True or False. Stength of iron increases as carbon content increases 
    true
  21. Principle ore used in production of iron and steel is 
    hematite 
  22. hematite is principle ore used in 
    production of iron and steel
  23. Percentages which defines an iron-carbon alloy as steel 
    0.02% to 2.11% carbon
  24. Three solid phases of the iron-carbon diagram
    alpha, gamma, delta
  25. alpha, gamma, delta
    Three solid phases of the iron-carbon diagram
  26. Parts in molds
    Downsprue, riser, puring cup, core, drag, cope, flask, 
  27. Downsprue, riser, puring cup, core, drag, cope, flask,  are parts in 
    Mold
  28. In a sand cast mold what is the drag 
    bottom half of the mold
  29. bottom half of the mold
    drag
  30. In a sand cast mold what is the cope
    Upper half of the mold
  31. Upper half of the mold
    cope
  32. Purpose of a riser in a sand cast mold 
    resovior that serves as a source of liquid metal for the csting to compensate for shrinkage during solidification
  33. resovior that serves as a source of liquid metal for the csting to compensate for shrinkage during solidification
    is a riser
  34. In sand cast mold what is the downsprue 
    gatting system
  35. gatting system in sand cast mold
    downsprue
  36. box that hold both open and closed mold casting is called 
    flask
  37. Flask is 
    box that hold both open and closed mold casting is called 
  38. Two halves of a sand cast mold is seperate at what line 
    parting line
  39. Parting line is 
    Two halves of a sand cast mold is seperate at what line 
  40. Metal in a sand cast mold enters at the pouring cup and proceeds down a what 
    runner
  41. runner is a part where
    Metal in a sand cast mold enters at the pouring cup and proceeds down a what
  42.  expendable mold operations 
    shell, vacuum, investment, expanded polyestrene, plaster-mold and ceramic-mold
  43. shell, vacuum, investment, expanded polyestrene, plaster-mold and ceramic-mold
    expedable mold operations
  44. Investment casting is and also known for
    wax completly covers then melts away and also known as lost-wax process 
  45. wax completly covers then melts away and also known as lost-wax process 
    is investment casting
  46. Precision mold casting process
    die casting, centrifigual casting
  47. die casting, centrifigual casting
    Precision mold casting process
  48. Most widely used casting process
    sand casting 
  49. Sand casting is the most
    widely used casting process
  50. What is flash in die casting 
    liquid metal under high pressure squezes into small space
  51. liquid metal under high pressure squezes into small space
    is flash
  52. Advantages of permanent mold casting 
    reusable, easy precise opening and closing, 
  53. reusable, easy precise opening and closing, 
    Advantages of permanent mold casting 
  54. Why are Metals are heat treated?
    To change mechanical properties
  55. In order to change mechanical properties
    Metals are heat treated
  56. Hardenability is 
    property that determines the depth below the quenched surface to which steel is hardened
  57. property that determines the depth below the quenched surface to which steel is hardened
    Hardenablity
  58. Most important heat treatment method for hardening steels 
    tempering 
  59. Tempering is 
    Most important heat treatment method for hardening steels 
  60. Quench media produces most rapid cooling rate is
    brine-salt water
  61. brine-salt water
    Quench media produces most rapid cooling rate is
  62. quick way to test a metal to determine what material it may be
    hardness test
  63. hardness test is a quick way to 
     test a metal to determine what material it may be
  64. Common surface hardening treatment for metals
    carburizing (most common), nitriding and carbonnitriding
  65. carburizing (most common), nitriding and carbonnitriding
    Common surface hardening treatment for metals
  66. Aging is important in precipitation hardening 
    during aging is when high stength and hardness is achieved in the alloy
  67. during aging is when high stength and hardness is achieved in the alloy
    that is why it is important in precipitation hardening 
  68. Austenizing is 
    heating the steel to a sufficiently high temperature that is converted to austenite
  69. heating the steel to a sufficiently high temperature that is converted to austenite
    austenizing 

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