GMAW: Fundamentals for Stainless Steel and Aluminum
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Demonstrate your knowledge of fundamental skills in GMAW techniques.
Topics of this game:
- Which type of metal transfer is limited to use on thin stainless steel?
- ___________ is not suitable for all position welding on stainless steel.
- Spray transfer welding requires _____________ shielding.
- Electrode orientation affects bead shape and penetration to a greater extent than arc voltage or ________________.
- Spray transfer requires the use of direct current, a positive electrode (DCEP), and a current level above a critical value called the ____________ current.
- Because the spray transfer drops are smaller than the arc length, _________________ don't occur and spatter is negligible, if not totally eliminated.
- When all other variables are held constant, increasing welding current (wire feed speed) results in all except ______________.
- The current and polarity selection for GMAW is ______________.
- With all variables held constant, arc voltage is directly related to ______________.
- A voltage increase tends to _____________ the weld bead and increase the width of the fusion zone.
- Excessively high voltage may cause all except _____________.
- At _____________ travel speeds, the welding arc impinges on the molten weld pool, which reduces the effective penetration.
- For welding aluminum, which mode of metal transfer is preferred, even in all positions?
- For some materials, such as aluminum, a ___________ technique is preferred.
- A prolonged temperature of 800 to 1600 degrees fahrenheit when welding stainless steel can cause ________________.
