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Sheet Metal 3rd Yr > Stainless Steel > Flashcards

Stainless Steel Flashcards

1
Q

What film is formed on stainless steel that provides protection to the material?

A

Chromium Oxide

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2
Q

Iron contamination can cause the stainless steel to do what ?

A

Rust

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3
Q

Austenitic steels are what series ?

A

300 series

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4
Q

Which of the groups are the most common stainless steels used today ?

  1. Austenitic
  2. Ferritic
  3. Martensitic
  4. Duplex
A
  1. Austenitic
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5
Q

The numbers 302-18-8 means what ?

A
  1. is series
  2. % Chromium
  3. % Nickel
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6
Q

Sheet metal equipment must be de-rated by how much for stainless steel ?

A

4 Gauges

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7
Q

A de-burring tool is used to do what ?

A

Remove the burring from shearing.

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8
Q

Drill bits must have an included angle of what for stainless steel/

A

135*

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9
Q

What should be done when band sawing stainless steel ?

A

Lower the band saw speed

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10
Q

A squaring shear is rated for 18 gauge mild steel, what is its rating for stainless steel ?

A

De-ratr 4 gauges

22 gauge Stainless Steel

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11
Q

How is spring back compensated for when bending ?

A

Over Bending

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12
Q

What method of bending should be used when power braking ?

A

Air Bending

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13
Q

Fasteners used to secure material should be what ?

A

Made from the same material

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14
Q

Can Stainless Steel be soldered ?

YES or NO

A

YES

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15
Q

Sliver brazing is a form of ______ solder.

  1. quick
  2. slow
  3. hard
  4. soft
A
  1. hard
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16
Q

Stainless steel can be welded ?

YES or NO

A

YES

17
Q

What settings must be done prior to spot welding stainless steel ?

A

Increase pressure

Decrease current

18
Q

The best method of welding stainless steel produes the best quality ?

  1. gas
  2. arc
  3. GMAW
  4. GTAW
A
  1. GTAW
19
Q

What are some of the methods of distortion control ?

  1. copper chill plate
  2. skip welding
  3. step back welding
  4. All the above
A
  1. All the above
20
Q

What are the four steps in finishing a stainless project in the correct order?

A
  1. Grind
  2. Sand
  3. Polish
  4. Buff

Sheet Metal 3rd Yr (7 decks)

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