Welding Car Electronics

This is what I. Discussion Starter 1 7 mo ago.

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In conclusion welding on your vehicle can potentially damage the sensitive electronic equipment of the car and cost you a lot of money to repairThe TIG method is considered to be the best for precise and high quality work no matter the thickness of the component although requires a more experienced welderThankfully there are a ways which can minimise the risk of damaging the vehicle such as removing the component and working with it on the welding benchBefore starting the welding.

Welding car electronics. Place the welders earth as close as possible to your welding work and ensure the earth has secure electrical contact with the vehicle. This particular vehicle has quite a large number of electrical systems including an alarm system which seems able to activate even when the battery is disconnected. Work LeadThe electric conductor be- tween the source of arc welding current.

Also make sure to remove any modules batteries sensors wires and other electronic components from the welding area. Apparently welding can cause severe damage to the electronics. I know welding can damage electronics.

Hi do a lot of welding on heavy plant and generally just isolate the battery earth. Like on a crane if the load sensor s still on thecrane and u weld sumthing on the crane it nacks it. Wait at least three minutes for the capacitors in the air-bag circuit to discharge and as stated above keep the ground clamp as close to the weld.

Jump to Latest Follow 1 - 4 of 4 Posts. Users who perform welding on machinery are not necessary diligent in taking precautions like disconnecting the battery from the vehicle. 1979 450SL Joined Dec 29 2014 347 Posts.

The biggest car alternators available are the big case 140A GM Delco-Remy models out of mid 90s Camaros and Firebirds. By Otto Nobedder Tue Apr 21 2015 118 am. Welding on my car with electronics HF TIG.

Onboard Welder Using a GM Delco 140 Amp Alternator Introduction. A truck trailer or similar wheeled vehicle. So maybe its the same on a car.

Just it wont cost 20 grand if u risk it. If you plan to weld something without removing it from the car play safe and remove any electronic items in or near the proposed welding area and disconnect any others. My thinking is the welding can create some high frequencies in the current while arc striking or if the weld machine isnt true DC plus welding voltage is much higher than 12 or 24 volts but still wonder how just disconnecting Neg.

Such devices include the alternator car alarm CD player Radio Air bag system Engine management system and the multitude of sensors that feed them. Battery cable helps anything such as computers regulators or other electrical devices from being damaged from the welding process. Disconnect the batterys negative terminal.

The welding leads are connected to the battery. You should ideally weld on a separate surface if at all possible. Typically ahead of welding MIG or ARC I would disconnect the battery to prevent damaging any electrical systems on the vehicle.

How to Minimize the Risk When Welding. 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. Disconnect the battery ground cable.

If the vehicle contains a high-voltage battery system check the service manual in order to shut down the hybrid system properly. This breaks the loop through the battery so that possible overvoltages are reduced. WorkThe workpiece or metal upon which the welder welds and is normally grounded independently of the welding leads to a good electrical ground unless a qualified person assures it is safe to work on an ungrounded workpiece.

Welding on car safe for electronics. The process involves applying pressure and heat to the weld area using shaped alloy copper electrodes which convey an electrical current through the weld pieces. To avoid damaging the vital components of the car such as the ECU.

What is the actual mechanism that causes the welding damage to the circuit. The material melts fusing the parts together at which point the current is turned off pressure from the electrodes is maintained and the molten nugget solidifies to form the joint. However you also need to protect your vehicle since all and any electronic devices within it can be damaged during welding.

Modern vehicles use a control circuit which regulates the voltage in and out of the alternator to prevent over charging. If you disconnect the CAN bus from any sensor nodes on or near whatever you are welding and also disconnect it at the controller node and your electronics power input circuits are designed to handle full repeated ISO 7637-2 load dump surges you shouldnt have a problem. Welding on your automobile can severely damage the electronic components in the car and even make your airbags fire.

The main issue is ground potential difference. Tom86951 Premium Member. Damaging the engine electronics.

Electric current flowing through from the welder can damage or short circuit electrical components.

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