10results about "Welding electric supplies" patented technology

Welding system for carrying out a welding process, comprising: a welding control; a welding power source; one or more contacts, wherein one or more, in particular all, contacts are engaged with a component to be welded; a distribution system, wherein the distribution system comprises a corresponding supply line for each of the contacts; wherein the distribution system is configured to activate the supply line corresponding to the contact for each welding point and to direct the welding current to the contact via the corresponding supply line and to deactivate it again after the welding point has been placed on the component.

A welding system (2) and a method for transferring specific data for producing a welded joint (7) between welding controls (11 to; 21 to 24; 31, 32) of the welding system (2) are provided. The welding system (2) has at least two welding controllers (11 to 13; 21 to 24; 31, 32) each configured to store welding joint data (1311 to 1317) for producing the weld joint (7), at least one welding tool (41) for producing a weld joint (7) on at least one workpiece (5; 5, 6) under control of one of the at least two welding controllers (11 to 13; 21 to 24; 31, 32) on the basis of the stored welding joint data (1311 to 1317), and a communication device (15; 25) for communicating with the at least two welding controllers (11 to 13; 21 to 24; 31, 32), wherein the communication device (15;25) is designed to initiate a transmission of welding joint data (1311 to 1317) stored on the communication device (15; 25) from a source welding control (11) of the at least two welding controls (11 to 13; 21 to 24; 31, 32) to a target welding control (12, 13; 21 to 24; 31, 32) of the at least two welding controls (11 to 13; 21 to 24; 31, 32).

The application discloses a kind of multifunctional 20K high-frequency precision welding power supply control systems, belong to welding equipment technical field;The application includes control box and power control system, the one end of control box is provided with man-machine interaction panel, the outer wall on the other end of control box is provided with multiple interfaces, load fan is embedded on the inner wall of the other end of control box;The application adopts welding frequency free switching technology, greatly improves the smoothness of welding waveform, obtains more stable welding current, while current control precision is higher, response speed is faster, can be more suitable for a variety of complex welding conditions;Through the collaborative work of voltage supervision center, carrying state analysis module and environmental supervision module, the overall monitoring and management of hot press welding machine operating state are realized, and the operating stability and reliability of the entire welding system are improved.

Various embodiments of the present disclosure provide a generator. The generator includes an LLC resonant circuit configured to generate a sinusoidal input signal by filtering out harmonic components of a pulse-width modulated (PWM) input signal. The generator also includes a transformer having a primary coil and a secondary coil. The transformer is configured to receive, at the primary coil, the sinusoidal input signal from the LLC resonant circuit to generate a magnetic field, and induce a sinusoidal output signal at the secondary coil based on electromagnetic induction associated with the magnetic field. The generator also includes a transducer configured to convert the sinusoidal output signal into mechanical vibrations that drive an output device.

To provide a welding power supply device which can be adjusted to desired welding conditions.SOLUTION: In the welding power supply device, the power storage unit stores power when any one of the three switching elements is in a conductive state, and outputs a current from at least one switching element to a welding electrode in contact with an object to be welded when any one of the three switching elements is in a non-conductive state. A first signal generator generates, based on a reference clock, three pulses in which a phase of a switching control cycle in each phase is shifted by 120 degrees, and generates three first signals for pulse modulation corresponding to each phase from the generated three pulses. A second signal generation unit generates three second signals for adjusting a conduction time, which is a period of a conduction state of each switching element, based on the three first signals. The drive unit outputs a third signal for applying a predetermined voltage to each switching element to each switching element based on the three second signals, and brings each switching element into a conductive state or a non-conductive state.SELECTED DRAWING: Figure 2

A welded member and a method for producing the welded member are disclosed. The welded member is prepared by resistance-spot-welding a sheet set including two or more overlapping steel sheets. The total thickness tall of the sheet set and the minimum thickness tweld of the resistance spot weld satisfy formula (1), and at least one of the two or more steel sheets is a steel sheet having a softened layer in a steel sheet surface layer. In a base metal zone in the steel sheet having the softened layer, the nanoindentation hardness Hbs of the steel sheet surface layer and the nanoindentation hardness Hbt inside the steel sheet satisfy formula (2).0.5<tweld / tall<1.(1)0.2<Hbs / Hbt<0.8(2)

A welded portion characteristic prediction method is a method of predicting characteristics of a welded portion (5) obtained by resistance spot welding to pass a current between two electrodes (3, 4) clamping a sheet combination of three or more overlapping metal sheets, the method including acquiring electrical information outputted during resistance spot welding, inputting the electrical information to a first prediction model (221) for predicting characteristics of a first welded portion (51) and acquiring a prediction result of the characteristics of the first welded portion (51) outputted from the first prediction model (221), and inputting the electrical information to a second prediction model (222) for predicting characteristics of a second welded portion (52) and acquiring a prediction result of the characteristics of the second welded portion (52) outputted from the second prediction model (222).

The present disclosure concerns a spot welding method, including the following steps of: arranging two electrically conductive parts to be assembled between two electrodes, each of the two parts having an interface zone between the two parts and a contact zone with one of the two electrodes; establishing a first electric current between the two electrodes through the two parts, the first electric current producing thermal energy capable of forming a weld nugget within the two parts; and adjusting a distribution of the thermal energy density produced by the first electric current based on the intrinsic characteristics of each of the two parts, to generate a weld nugget initiation zone at a selected depth in the parts to be assembled.

Welding control (10) for a welding system (2), comprising a control device (12) for controlling a welding transformer (24) and a welding tool (21) of the welding system (2), wherein the welding tool (21) is provided for producing at least one welded joint (7) on at least one workpiece (5; 5, 6) and the welding transformer (24) is provided for supplying the welding tool (21) with a welding current (I) for producing the welded joint (7), and a monitoring device (15) for monitoring at least one welding parameter by comparing an actual welding process with a first target welding process (131A; 131B) of the at least one welding parameter when producing a welded joint (7) with the welding tool (21), wherein the first target welding process (131A;131B) was not created under the operating conditions of the welding system (2), wherein the monitoring device (15) is also designed to evaluate the at least one welding parameter to be monitored additionally on the basis of at least one second target welding process (131C) created under the operating conditions of the welding system (2) in order to assess whether the welded joint produced (7) meets the quality requirements or not.;

A welded portion characteristic prediction method is a method of predicting characteristics of a welded portion (5) obtained by resistance spot welding to pass a current between two electrodes (3, 4) clamping a sheet combination of two or more overlapping metal sheets, the method including acquiring electrical information outputted during resistance spot welding, the electrical information including at least one of the current flowing between the two electrodes (3, 4), the voltage between the two electrodes (3, 4), the resistance between the two electrodes (3, 4), and the amount of heat generated between the two electrodes (3, 4) during the resistance spot welding, and predicting characteristics of the welded portion (5) based on the electrical information.