What is the best alignment tool for spot welding electrodes?

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What is the best alignment tool for spot welding electrodes?

As discussed in other articles alignment is very important in resistance welding. It dictates force and current application/distribution and prevents distortion of the workpiece. If not set up properly the part can be distorted and/or the electrode face can have exceedingly high current densities. This can result in distorted parts, expulsion and excessive electrode face wear.

Misaligned electrode spot welding

 In many shops alignment is done by eyeball?
A better method is a ruler.
Carbon paper has been a good choice for a long time.
Laser lights on the holders is the newest option for alignment.

For additional Information in this blog:

WHAT IS A GOOD WAY TO ALIGN THE TOP AND BOTTOM RESISTANCE WELDING ELECTRODE?

References: RWMA -Resistance Welding Manual 4th Edition

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