What is the best method for separating spot welds?

5 Easy Ways to Remove Spot Welds

1. Cutting Spot Welds. The first and most common option is this spot weld cutter.
2. Drilling Spot Welds With a Special Bit.
3. Using a Regular Drill to Bore Through Welds.
4. The Star Method for Spot Weld Removal.
5. Grinding Spot Welds Away.

How far apart should spot welds be?

It is recommended that distance between two spot welds should be a minimum of 10 times the material thickness. Sufficient overlap of individual sheets being spot welded is necessary to obtain adequate joint strength and for use of standard electrodes.

Why do spot welds fail?

Spot weld can fail in two completely distinct modes, namely, nugget pullout failure and interfacial failure. In this paper, we show that the nugget pullout failure is caused by plastic collapse and the interfacial failure is governed by crack or fracture mechanics.

Can you remove spot welds?

When drilling to remove the spot weld you should make a small divot in the center of the weld using a metal punch. This is done to help the drill bit stay in place while you are drilling. A divot is also necessary when using a spot weld cutter, but instead of going through the weld the cutter will cut around the weld.

How do you remove a spot weld battery?

Re: How to dismantle a spotwelded battery? in case the silicone slides off the handle you can use acetate glue on the handle and just slide it back. it will never come off again. use a dremel with the blue grinder wheel to take the weld pits off.

How do you get rid of old welds?

Typically, you can remove welding through plasma cutting, torch cutting, grinding or circular saws, drills, or oxy-acetylene torches.

Which of these is a disadvantage of using the hole saw method to remove factory spot welds?

What is a disadvantage of using e hole saw method to remove factory spot welds? The spot weld nuggets must be removed.

Are spot welds strong?

Spot welding is useful in many circumstances, although there are certain limitations. It can create only localized joins, which may not be particularly strong. The strength of a spot weld depends on the force and temperature that has been applied and on the cleanliness of the electrodes and metal.

What is the maximum power supply needed for the working of spot welding process?

Explanation: Spot welding can be used for all types of ductile metals. It can also be employed for structures of sheet metals, and can be applied for making of boxes and cans. For its applications, the maximum power that can be needed for this process is 150 kVA.

How do you find a dead cell in a battery pack?

Charge the battery, connect it to a 12 light bulb or some means of discharging the battery, and then measure each cell every couple of minutes. The bad cell will show itself at some point in the discharge process by dropping voltage much quicker than the others. Stop the process when the cell (s) reach 0.9V/cell.

What causes separation along the original Weld plane?

Separation along the original weld plane (rather than tearing at a weld button) occur when stampings are stronger than the weld nugget. The WeldHelp Resistance Welding Troubleshooting Guide is written for operators and engineers to help diagnose and solve common spot welding defects and issues, projection welding and seam welding applications.

What’s the easiest way to remove a spot weld?

First, cut a star-shaped pattern directly over top of the weld; you will only need to cut through the top panel. Then, using the punch, hit the center of the cut lightly to break the rest of the metal free. If you are able to get to the underside of the panel, this step may become easier with the use of a screwdriver to pry the two pieces apart.

What should I do if my welding line is not holding?

Take off the tip of the torch and see if the wire will feed. You may need a new tip. Make sure the line is as straight as possible from the roller to the torch. It also could be old or dirty wire. Could be a chunk of something in the line. Try blowing out the liner with air from both directions.

Why is my MIG weld not sticking yet?

No announcement yet. I have something going on that is strange. I have been using the same setting, gas, wire , welding two 3/8″ mild steel plates together, I grind the area clean, and have not had any trouble. yesterday I did the same thing but the weld would not penetrate the bottom plate. I am welding the 90 degree joint.