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What determines whether polarity of a welding machine is set up for DCEN or DCEP?
Wiki User
∙ 12y ago
The electrode. In some cases thin materials weld better with DCEN.
Wiki User
∙ 12y ago
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Whether HAZ is higher in gas welding or arc welding?
Larger in Gas Welding. In all arc processes the HAZ is concentrated in a couple inches around your bead. In gas welding it can be double or triple that size.
How can you select the current values for welding?
The amount of current (amps) is controlled by the user. It's done with a variable resistor. Another thing to note is whether you are welding constant current or constant voltage. If you are welding constant current, the voltage will vary and a set Amp measure will remain constant. With constant voltage, the current will vary and that's determined by the resistance. Constant voltage should be an easier set up. I'm not 100% sure but most stick welding is constant current, which is why increasing the arc length produces more heat, because more arc length should increase the resistance, which would cause the welding machine to increase voltage to keep the current constant.
What is a welding positioner?
A welding positioner is a work motion device that places the weldment in a location and at an angle that allows for optimum welding parameters to be used (faster travel speed, increased current, ect.) Essentially, it places the weldment so that it is in a 1G, 1F, or 2F position. Four common types of welding positioners include tilt-tables, turning rolls, head and tailstock, and universal balance positioners.
When performing overhead welding what additional safety equipment should be worn in order to protect the legs and feet from falling molten metal?
When welding one should always wear certain clothing. Leather boots (steel toe desirable), work pants (such as jeans) that cover the top of the boots, heavy cotton long sleeve shirt, welding beanie, gloves, and safety glasses. In most instances these items will protect you from sparks and weld spatter whether you are welding on a flat, vertical or overhead surface. A leather jacket can be worn to protect your shoulders and arms. Molten metal should not be falling if you are welding correctly. If you are sitting, while welding, a leather apron should be used.
What properties of semiconductor are determined from Hall effect experiment?
If we are given a bar ofsemiconductor(but it is not known whether it is p-type or n-type),by measuring the polarity of the hall voltage between the sides of the given bar, we can determine whether it is n-typeor p-type.
What determines whether or not a substance will dissolve?
The most important characteristic is the polarity of the solvent and solute.
What is a factor that determines whether a molecule cross a cell membrane?
size/ polarity can be the factors
What is a factor that determines whether molecule can cross a cell membrane?
size/ polarity can be the factors
What determines whether charges attract or repel?
If charges are alike, they repel. If charges are opposite, they attract.
What determines whether a compound will dissolve in whether?
The polarity or charges of compounds will determine if a compound would dissolve in water, where compounds with opposite charges within their molecules dissolve in water.
What is the relationship between an ionic compounds' polarity and stability?
Ionic compounds are polar and stable by nature, which means that their relationship determines whether a compound is ionic or not.
What is a collating machine?
Definition for a collating machinea collating machine is a machine that is used for collating sheets of paper .a photoeletric device in the machine determines whether a type of sheet has been fed .
What is collating machine?
Definition for a collating machinea collating machine is a machine that is used for collating sheets of paper .a photoeletric device in the machine determines whether a type of sheet has been fed .
What determines whether a solute is hydropholic or hydrophobic?
What determines a molecule's solubility degree in water is its polarity. Equals dissolve.
Can you plug a 230V 50Hz welding machine into 220V 60Hz outlets?
FIRST THING I WANT TO KNOW THAT WHETHER YOU ARE TALKING ABOUT INDUCTION MACHINE OR SYNCHRONOUS MACHINE? IN INDUCTION MACHINE, RATIO OF VOLTAGE TO FREQUENCY MUST BE SAME FOR CONSTANT TORQUE. IN THESE CASE AS YOU CAN SEE, V/f RATIO IS NOT CONSTANT THEN INDUCTION MOTOR WOULD NOT RUN.
What is a factor that determines if a molecule can cross a cell membrane?
size/ polarity can be the factors
What is positional welding?
A welding position is the orientation of the weld joint, whether that be flat, horizontal, vertical, or overhead.
