Gas Metal Arc Welding : Sheet Metal Directions: Fill in the blanks: Introduction to Gas Metal Arc Welding 1. This process is a semi-automated process that requires an __ in the form of a __ fed from the machine through the liner inside the __ , and out to the other end of the lead 2. To understand the difference in __ versus constant voltage as it relates to these processes, one must really think about how __ flows 3. If we measure __ past one point, and usually that is where the __ is initiated, whether it be stick or the __ process or the TIG process, we would be measuring weld current or amperage 4. So when we look at it in __ terms as it relates to welding, we look at gravity as our __ or our force-electrical potential so to speak. 5. As it relates to this machine, when I talk about wire feed speed, it is measured in __ per __ that is how much __ is coming out of the end of the __ gun when you set it. Machine Set-Up 1. If you look through this chart, you have different __ modes-for steel, these are all __ weld __ This whole top section are synergic weld modes. 2. My __ are down here. This can do multiple __ so we are going to start off with GMAW weld mode 5. 3. Primarily, when you get into inverter style or __ type machines,they are going to be more specific to direct current applications. 4. That simply means by pulling this __ I am going to get a constant __ of wire. The __ is fed from a spool. 5. There is a ton of information usually on the inside __ of this machine And when setting a machine you are going to want to refer to this chart as a ne welder.

1. This process is a semi-automated process that requires an **external power source** in the form of a **current** fed from the machine through the liner inside the **torch**, and out to the other end of the lead.<br />2. To understand the difference in **voltage** versus constant voltage as it relates to these processes, one must really think about how **current** flows.<br />3. If we measure **voltage** past one point, and usually that is where the **arc** is initiated, whether it be stick or the **MIG** process or the TIG process, we would be measuring weld current or amperage.<br />4. So when we look at it in **electrical** terms as it relates to welding, we look at gravity as our **potential** or our force-electrical potential so to speak.<br />5. As it relates to this machine, when I talk about wire feed speed, it is measured in **inches per minute** that is how much **wire** is coming out of the end of the **torch** gun when you set it.<br /><br />Machine Set-Up<br />1. If you look through this chart, you have different **welding modes** for steel, these are all **GMAW** weld **processes**. This whole top section are synergic weld modes.<br />2. My **settings** are down here. This can do multiple **welding modes** so we are going to start off with GMAW weld mode 5.<br />3. Primarily, when you get into inverter style or **pulsed** type machines, they are going to be more specific to direct current applications.<br />4. That simply means by pulling this **trigger** I am going to get a constant **flow** of wire. The **wire** is fed from a spool.<br />5. There is a ton of information usually on the inside **manual** of this machine. And when setting a machine you are going to want to refer to this chart as a new welder.