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A robust robotic arc welding fixture is a part-holding tool used to constrain components for welding in an automated system. [15] Welding fixtures locate parts using these clamps to secure important aspects of the subcomponent, such as holes, slots, or datum surfaces. Careful considerations must be made when designing welding fixtures.
Welding power supplies primarily serve as devices that allow a welder to exercise control over whether current is alternating current (AC) or direct current (DC), as well as the amount of current and voltage. Power supplies for welding processes that use shielding gas also offer connections for gas and methods to control gas flow.
Welding thermoplastic with heat is very similar to welding glass. The plastic first must be cleaned and then heated through the glass transition, turning the weld-interface into a thick, viscous liquid. Two heated interfaces can then be pressed together, allowing the molecules to mix through intermolecular diffusion, joining them as one.
Practicing welders may have more experience with the technique (holding the wire and torches just right to make an excellent weld rather than a poor one, analogously to how a musician must play a musical instrument just right, with highly practiced deftness of fine motor control, in order to produce an excellent sound rather than a poor one ...
All of these types of shocks come from the welding electrode terminal. Often these shocks are minor and are misdiagnosed as being an issue with a power tool or the power supply to the welder's area. However, the more likely cause is from stray welding current which occurs when current from the welding cables leaks into the welder's work area.
Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.
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