Introduction
Welding is not just about mastery, it’s a lifetime of learning and mastering one skill at a time. Welders are unique individuals who we can definitely say are one of a kind. One such skill that is essential to all welders is the mastery of the welding wire ลวดเชื่อม. Whether you are an expert or just beginning this crucial skill is important to producing a high quality weld. In this post, we will discuss tips that will allow you to master your welding wire. We will discuss the type of welding wire you will need to employ, the proper storage, the proper handling techniques, and troubles you will encounter through a welding wire. After reading, you should have a great understanding about welding wire and how to utilize it to get what you desire from your project.
Type of Welding Wire
Because the metal composition of the weld wire is matched to the base metal, the amount of contamination (or lack thereof) in the weld is easier to control. There are a number of different weld wires used to provide this filler metal. All of the weld wires have different characteristics to suit the welding needs of the base metal. In particular, your project may require different welding wires ลวดเชื่อม even, for a similar welding process. For instance, Solid Welding Wire is usually used for MIG welding. Kuhn, G. (n.d.). Selecting the right welding wire will ensure the weld you create is of high quality. The type of welding wire needed is referred to as a consumable because the rod or wire makes a part of the weld. This wire or rod is drawn through a welding gun and is used for MIG welding and TIG welding. How do you know what type of welding wire to use? What is the criteria needed to ensure the correct wire is used? First, The Flux-Cored wire may also be categorized in a few sub categories which is generally used on thicker materials and outdoor welding. Wire-feed welding is faster and the time you spend on welding an outdoor vessel might be quicker than normal. For the most part most are compatible with a similar process and all result in the same thing which is ultimately a weld. Know the type of project you will be welding. Use the chart on Miller Electric website to further investigate the type of wire for your particular project. The wire metal electrode must match the base metal material. Put differently, if you are welding an Aluminum sheet with a 5356 wire, you must use a 5356 electrode. The same goes for if you are welding with a 4043 wire.
Proper Storage, Proper Handling of Documents
If your wire is improperly stored or handled it could cause oxidizing of the wire. Wire becomes damaged by metal rust, moisture, or oil. It simply is not possible to make a good weld when this occurs. Be sure your wire is stored in a dry, clean place. This might mean having a storage cabinet for all corrosives. If you can it is best to stack your spools up off the ground. Maybe on shelves or dolls, stacked with other materials that do not corrode the wire. At the very least, try not to store rolls of wire directly on dirt or a concrete floor. To ensure the wire stays dry, store them in airtight containers and resealable bags. Ensure wire is not bent or twisted when feeding the wire through your welding machine or into the drive system of your wire feed unit. Never clamp down on the wire to hold it or try to weld with the wire retracted into the gun nozzle. It is elements like these that guarantee a clean unoxidized feed. Keep contaminants from the wire by utilizing a special wire brush. Lastly, when welding big wire spools with big off shore hot sticks, be sure not to damage the top of the wire. To prevent this issue you would buy reverse polarity spools.
Optimizing Welding Wire Feeding
Perhaps, one of the most important keys is to ensure seductive wire feeding to secure and maintain optimal weld pool control. Wire feeding means smooth wire feeding. Anytime the feed is decentered it could result in off color welds that could be off a shade. If the wire is off enough this could cause small beads on the plate. We want to make sure that when the wire is feeding it goes from the spool and does not encounter any obstructions that would cause a knot in the wire. Bob Moffatt warns, troubleshoot your wire feed. It is a key part to maintaining a smooth fabricate weldment. Always make sure that the gearing behind the wire feed wheel is correct. If it isn’t you’ll have problems with the wire feeding knotted or jerking along while you’re welding. You have a problem if the wire’s arc either isn’t heating the plate, or melting off the wire. Both can happen as a result of the wire not feeding properly.
Care must be taken to load the spool correctly to ensure proper feeding performance. Welding with a spool that is not loaded correctly can result in poor wire feeding and the issues that come with it. Welding wire should be loaded − with some tension − so that the wire is driven by the drive rolls. However, excessive tension can deform the wire and prevent it from feeding through the gun cable. Low tension, on the other hand, will allow the wire to slip or bite in the drive rolls and can prevent proper wire feeding.VectorXd. (2011, November 23). Welding Skills: Wire Feed Welding Basics. It is also wise to make sure we bead the contact tip and liner show for minimal wear and tear. Being rough on these parts might hinder the performance of the unit. Lastly, monitor the wire at all times to ensure that it is not feeding off away from the puddle or swinging erratically. Swinging wire can result in a number of inaccurate braises.
TroubleShooting Common Issues
All wire welding operators and company administrators need to locate common issues so that we can prevent wire issues. Bird-Nesting: If an issue with the wire feed occurs, it usually involves the Gun Liner and the Contact Tip. When it came to bird nesting or the wire crimping up close to the wire feed wheels and some of the situations to encounter with relocating my liner constantly. The liner is a devotional unit. It is pretty easy to see so I would replace that with a new roll of cable. Secondarily relates the newly replaced liner on the wire feed machine which may respectfully be out of alignment. Careful alignment would be a great solution. In the third case you would recoil the spool. Always remember to align wires with the bottom lip of your gun.
If the wire in GMAW welding requires additional procedures
1 . Adjust your amperage and voltage using the appropriate type of welding and consumable electrode. 2 . Make certain that the wire feed speed is set at the maximum recommended for the procedure. 3 . On thin materials, use a different welding process, if it is appropriate and will meet the application requirements. 4 . If you cannot avoid burnthrough, use pulsed spray with a traveling high speed method of deposition. 5 . Altering the shielding gas may also allow welding to occur without burning through. Shared by a welding guru. There may be other times where the extra wire built up on the side of your weld was due to resistance build up caused beyond comparables of the mating parts. The wire melts down until a puddle is formed and makes a tool. If your wire burns black.
