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Ferramentas e equipamentos para reparos de carroceria

Tools and Equipment for Body Repairs

Carroceria · página 283 de 566 · 501-25-25 · parte 5 de 5

Página 283 do Manual de Carroceria: Ferramentas e equipamentos para reparos de carroceria
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501-25-25 Body Repairs - General Information 501-25-25 DESCRIPTION AND OPERATION ‡ good welding performance with constant quality, even with high switch-on times ‡ recognition of and compensation for disruptive factors: e.g. primer, adhesive, rust-prevention paint ‡ own and pre-set welding programs which can be saved and called up ‡ quality confirmation through logging of all important welding data ‡ fast changing of spot welding clamps or spot welding guns as required The following functions can be controlled and monitored by programming the welding equipment: ‡ Control of the start conditions by resistance measurement (dirt, paint, bodywork adhesive, shunt circuit through the next spot weld). ‡ Ensuring the optimum welded connection. ‡ Checking the energy balance, resistance and quality. In the case of resistance spot welded connections, faults in the weld are difficult to see from the outside. It is therefore absolutely vital to know the particular properties of the welding machine being used. A test weld with subsequent peeling test will provide information on the quality of the weld. The spot weld itself must not separate, it must tear away leaving a hole. In the production of vehicle bodies, MIG welding plays a minor role as a joining technique. It is used for components subject to high demands, such as threaded plates for axle mountings, or at locations which cannot be spot welded for access reasons.