Mig Welding: The Purpose Of MIG Welding

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MIG WELDING
COLLISION REPAIR

By Caleb J Brooks

Table of contents
• Introduction of MIG welding.
• Purpose
• Description
• Safety o Personal protective equipment (PPE) o Purpose of safety equipment
• Miller MIG machine set up and use

o Inner chart for different metal o Set up procedures o Equipment description

• Cleaning the metal

• Positions and types of welding
• Overhead, Horizontal, Vertical, and Flat
• Butt, Lap, Joint, Plug

Introduction

MIG welding, the most preferred and most efficient way of welding today’s vehicles, because of the more heat-sensitive metals and the use of thinner gauge this type of welding is recommended in all body shops.
This is a wire-feed, fusion welding process that releases …show more content…

When you’re welding on the other hand it the technician is required that he/she has safety glasses a welding helmet, welding gloves, a respirator, and a welding jacket. When you are MIG or arc welding you are vulnerable to hazardous fumes, if not wearing a dry hole free insulated gloves you can put yourself in a position of being badly electrocuted. Always wear a respirator, if inhaled the potent toxic fumes that are released can cause drastic damage to your lungs which can cause you to contract cancer. When plugging in your Millermatic MIG welder be sure to stay away from damp confide spaces it could cause a break out of an electrical …show more content…

When cleaning the surface use wax and grease remover, note that wax and grease remover is flammable so do not store this product near the welding area. Weld-through primer should be applied to any and all bare metal surfaces where the galvanized coating has been removed. Any undercoating, oil, dirt, corrosion, or grease must be removed from the area in which you are welding. When using weld-through primer, the excess must be removed after welding to allow the adhesion of other coatings. Types of welds
There are many different styles, techniques, and positions that welders are required to know. First before you start welding you need to know the direction you are, if you are using the push or pull technique. Second you need to make sure that your amperage and voltage are being balanced. Third you need to make sure how much wire need to stick-out. Fourth you need to figure out what angle the gun should be in. fifth identify what kind of weld needs to be performed, butt weld, lap weld, plug weld, or joint welds. Sixth what position are you required to weld in, horizontal, over-head, vertical, or flat. Seventh the travel speed determines the outcome of your welds, if your travel speed is to fast you will get sloppy splattered looking welds if your travel speed is to slow you will burn through the metal, but if your travel speed is at an even pace you will get a thick

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