Changes

====Overview====

====Overview====

MIG welding may be the simplest welding method to use but that does not mean it is easy. First, it is important to wear the correct safety gear, i.e. closed shoes, pants, a welding coat, a welding helmet, and welding gloves, otherwise you will be burned by the UV light emitted by the welding arc. You must also make sue the machine is set up properly. To do this, the gas canister should be opened and regulator adjusted to 15 CFH. Depending on the material you are welding the voltage and wire feed speed will very; you can find what values these should be set to by referencing the chart inside the cover of the welder. Once the welder settings are correct, set up your work pieces using clamps and magnets to hold them in position and clipping the ground clamp to the work piece or the metal table as long as there is a clean contact between the table and the work piece. The most difficult piece is keeping the correct  gun angle, keeping a consistent travel speed/pattern, and maintaining the correct distance from the work piece. If you have spent time on the welding simulator then the  gun angle and travel speed/pattern should be simple to replicate. It is more difficult to visually reach the correct distance from the material but if the welder is making a nice sizzling (just like frying bacon) sound then it should be correct. If there is a lot of popping the the  gun is too far away and if there is more of a bubbling sound then it is too close. After performing any welds make sure to reset the space by putting away any scrap metal and other debris.   

MIG welding may be the simplest welding method to use but that does not mean it is easy. First, it is important to wear the correct safety gear, i.e. closed shoes, pants, a welding coat, a welding helmet, and welding gloves, otherwise you will be burned by the UV light emitted by the welding arc. You must also make sure the machine is set up properly. To do this, the gas canister should be opened and regulator adjusted to 15 CFH. Depending on the material you are welding the voltage and wire feed speed will vary; you can find what values these should be set to by referencing the chart inside the cover of the welder. Once the welder settings are correct, set up your work pieces using clamps and magnets to hold them in position and clipping the ground clamp to the work piece or the metal table as long as there is a clean contact between the table and the work piece. The most difficult piece is keeping the correct  gun angle, keeping a consistent travel speed/pattern, and maintaining the correct distance from the work piece. If you have spent time on the welding simulator then the  gun angle and travel speed/pattern should be simple to replicate. It is more difficult to visually reach the correct distance from the material but if the welder is making a nice sizzling (just like frying bacon) sound then it should be correct. If there is a lot of popping the the  gun is too far away and if there is more of a bubbling sound then it is too close. After performing any welds make sure to reset the space by putting away any scrap metal and other debris.   

====Demonstration====

====Demonstration====

* Don’t weld in wet gear or standing water because this could create a new path for the electrical current to travel and cause a severe electrical shock.

* Don’t weld in wet gear or standing water because this could create a new path for the electrical current to travel and cause a severe electrical shock.

* Always turn gas and the welder off when you are done in the welding shop to ensure there are no leaks that could cause asphyxiation (suffocating from lack of oxygen).  

* Always turn gas and the welder off when you are done in the welding shop to ensure there are no leaks that could cause asphyxiation (suffocating from lack of oxygen).  

* Never weld without a welding helmet. Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld.

* Never weld without a welding helmet. Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Be aware that sparks fly off from the weld.

* Never weld without gloves. Gloves protect your hands from the heat as well as the arc rays. No bare skin should be exposed.

* Never weld without gloves. Gloves protect your hands from the heat as well as the arc rays. No bare skin should be exposed.

* Don't weld with the vent hood off. Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health. Asphyxiation can also occur due to the confined nature of the welding shop and the use of welding gasses.

* Don't weld with the vent hood off. Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health. Asphyxiation can also occur due to the confined nature of the welding shop and the use of welding gasses.