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salahuddin zia
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Join Date: Feb 2010
Posts: 164

Resistance Spot Welding Machines

09/30/2010 11:33 AM

Resistance spot welding machines are applicable to low carbon steel welding. It is suggested they must be used within their rated capacity of total thickness of material for best results. They should not be used over the duty cycle [ standard rating by RWMA is 50% duty cycle], since they will damage the contractors and transformers.

My question is how contractors and transformers are damaged and what does RWMA stands for?
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Doorman
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Hobbies - DIY Welding - Don't Know What Made The Old Title Attractive... Popular Science - Weaponology - New Member United States - US - Statue of Liberty - 60 Year Member

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#1

Re: Resistance Spot Welding Machines

09/30/2010 11:45 AM

RWMA = Resistance Welding Manufacturing Alliance

Electrode decay and erosion is a complicated discussion. Here is a paper discussing the issues involved. Read through this, and we can review your doubts.

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