The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
W artykule porównano dwa systemy docisku elektrod zgrzewarki w procesie zgrzewania rezystancyjnego tj. klasyczny pneumatyczny i serwomechaniczny. Porównania dokonano na podstawie pomiarów wielkości charakterystycznych procesu tj.: prądu i napięcia zgrzewania oraz przebiegu siły docisku i przemieszczenia elektrod. Wyznaczano wielkości pochodne prądu i napięcia zgrzewania i analizowano: przebieg mocy...
Single sided resistance spot welding (SSRSW) developed from RSW is a feasible plan to join vehicle structure to closed-form tube and is increasingly used in automobile manufacturing. Successful implementation of SSRSW to improve structural crashworthiness and reduce vehicle weight requires knowledge of issues related not only to joint performance but also processing requirements. In this study, effects...
The effects of dynamic electrical resistance subject to AC on transport variables, cooling rate and nugget shape during resistance spot welding are realistically investigated. The model accounts for electromagnetic force, heat generations and contact resistances at the faying surface and electrode-workpiece interfaces and bulk resistance in workpieces. Contact resistances are comprised of constriction...
In order to reduce vehicle weight and improve performance, hydroformed tubes have been widely used in the automobile industry. Sheet to cylindrical tube joining process by single-sided spot welding (SSSW) using servo gun is proposed in the present paper to join the parts. However, welding deformation occurs during welding process and welding quality is affected. The present paper investigated the...
The use of 50 Mo-50 Re foil materials (<.010" thickness) as heat shielding and in structural support applications for the microwave tube industry are well documented. A common fabrication and processing method for components and assemblies is resistance spot welding (RSW). There are many parameters employed in the welding processing: weld current, weld time, electrode force, hold time, squeeze...
Resistance spot welding (RSW) is widely used in the microwave tube industry. There are many parameters employed in the welding processing: weld current, weld time, electrode force, hold time, squeeze time, electrode material, electrode geometry, electric polarity, surface roughness, cover gas, et al. In this study, an attempt is made to improve the RSW quality of 50Mo-50Re refractory foils and to...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.