Burnt electronic components in weapons satellites transceivers and computer equipment. TIG welding can be performed safely once these electronics are protected.
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I would disconnect the battery and attach a ground as close as possible to the weld.
Welding on car with computer. You can do this by grinding an area on the hinge to clean bright metal and wrapping some bare copper wire around it or tape the copper strands to the bare metal and attach you ground. Joined Jan 23 2005. Hence it goes throught the ground wires on the motor taking the computer out aswell as 99 of.
Electric current flowing through from the welder can damage or short circuit electrical components. In the construction industry though workers predominantly use steel and MIG welding is also widely employed for steel work. By 803056 Date 03-02-2008 1752.
Welding the body is the same it is often isolated from the frame and engine. Many people believe the negative terminal should be disconnected but cannot explain why it should be done. Welding the return finds its way through the oxy sensor through the ECU to ground.
MIG welding was developed for the purposes of joining non-ferrous metals like aluminum. Ive got it saved if anybodys interested I can figure out how to post it. The computers work off such small currents that a small spike is all it takes to smoke one.
With that unpleasantness out of the way it is highly likely that the voltage current applied by the welding gear has damaged the low voltage control electronics responsible for operating the alternator. So its always possible to fry something but unlikley and the only way to be totally safe is to disonnect and remove the components which is not usually practical. Welding and creating an electrical current through the ECU can damage the computer irreparably.
With over 50 of the steel produced globally used in construction of commercial and residential buildings theres an enormous demand for welding on site. This computer is essential to your car functioning and you would not be able to drive if the ECU becomes damaged or destroyed. The reason to do it is that it helps to prevent damage to the vehicles ECU and other electronics.
Yes you should be able to do it without hurting the computer at all. To fry it connect the ground to say your exhaust pipe and weld on the frame or vise versa what happsnes is the ground has to find teh easiest path to the electrode on the welder. If you are concerned disconnect the battery then put your ground clamp close to where you are welding prefferably on the same structure or body part that is being welded and you wont have any problems.
It involves disconnecting the battery disconnecting the engine control computer and disconnecting the instrument panel. Make sure the battery is disconnected and all systems are shut down before the welding process. The exhaust is on rubber isolator mounts and has a rusty connection to the engine.
The on-board computers are extremely sensitive to over voltage and die rapidly maybe not damaged noticeably immediately after welding but theyre definitely the weakest electronic link and its easy to kill them stone dead or permanently damage them. I have welded on these new cars and trucks without incident and so far everything in the car works when reconnected. Ground your welding equipment to the hull with the existing lead the common transformer ground via the power input cable and a grounding strap from the welding case to hull or earth.
If the vehicle contains a high-voltage battery system check the service manual in order to shut down the hybrid system properly. Ford has a pretty interesting service bulletin about welding on F250s to F550s 2005 on. Ive done plenty of welding on computer controled equipment for and never have had a problem and typicaly just kill the master and ground close to weld.
The most important aspect of TIG welding on a modern car is protecting the cars ECM and digital electronics which can otherwise be damaged by the high frequency generated during the TIG welders initial voltage spike while starting an arc. I weld on stuff all the time whether it be a crane or drill rig to my last Audi S4they recommend diconnecting the computer from the carnot the battery so much but Ive never had a prob even with the sensitive German electronics. But you said Just bought my first welder a Hobart 125 Flux Core implying that you are new AND you have a 110v machine.
I have heard the argument of damage to equipment all the time but NEVER seen a result of it. Modern vehicles use a control circuit which regulates the voltage in and out of the alternator to prevent over charging. Computers terminals catching fire due to welding equipment using the same power source.
Both might pose dangers when welding on a vehicle not to the computer. Speculation runs rife regarding whether the negative terminal of a vehicles battery should be disconnected before welding on that vehicle. NSRP Administrative Offices can be found at 315 Sigma Dr Summerville SC 29486.
Jaz Ive had many problems with plant electronics and caused some expensive damage through welding. Protecting the ECU is necessary if you are going to. Remember that the O2 sensor is located in the exhaust system and is.
3 Mar 24 2008.
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