CN100528445C - Two-stage welder and method of operating same - Google Patents
Two-stage welder and method of operating same Download PDFInfo
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- CN100528445C CN100528445C CNB038052989A CN03805298A CN100528445C CN 100528445 C CN100528445 C CN 100528445C CN B038052989 A CNB038052989 A CN B038052989A CN 03805298 A CN03805298 A CN 03805298A CN 100528445 C CN100528445 C CN 100528445C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
- B23K9/1056—Power supply characterised by the electric circuit by using digital means
Abstract
An electric arc GMAW welder (A) is provided, which welder (A) includes a high speed switching power supply (10) with a controller (130) for creating a first or second weld process across the gap between a workpiece (W) and a welding wire (E) advanced toward the workpiece (W). The first process uses a first current waveform and the second process uses a second current waveform. A circuit is provided for shifting between the first and second weld processes. The shifting circuit includes a counter for counting the waveforms in the first and second processes and a circuit (190) to shift from the process being processed to the other weld process when the waveform count of the weld process being processed reaches a preselected number for such weld process.
Description
Technical field
The present invention relates to the arc welder field, more particularly, relate to a kind of the have arc welder of twin-stage or two kinds of pattern operations and the method that realizes by this twin-stage arc welder.
Background technology
Technology as a setting, application on May 29 calendar year 2001 at preceding co-pending application No.866,358 together with in this application as a reference and the document of introducing is introduced as a reference at this.Kawai4,889,969 have shown a kind of switch of conversion between DIP welding and pulse welding, technology is introduced reference as a setting.
The arc welder of GMAW type is usually by the speed-sensitive switch power supply or have the power supply power supply of the controller that can control the welding process current waveform.The The Lincoln Electric Company in joslyn hi-voltage city has taken the lead in having proposed having the theory of the arc welder of waveshape monitor, this waveshape monitor is controlled the shape of current waveform by using high-frequency current pulse in each cycle, the amplitude of each pulse is controlled by a pulse width modulator.In these welding machines, the waveform of electric current is accurately controlled to carry out different welding processes, as pulse welding, constant voltage welding, surfacing, pulse welding, short arc CV welding and STT welding.In these processes, the waveform of each welding interval is controlled can produce the welding interval that some row are carried out assignment procedure by pulse width modulator.Such arc-welding machine is very general; But they are operated with selected pattern by the pulse that waveshape monitor produces by control.
Summary of the invention
The present invention relates to a kind of arc welder of the above-mentioned type, its middle controller carries out conversion between different welding process of two independence or bond pattern.According to the present invention, pulse shaper or impulse generator shaping form some row pulses of first welding process.Controller is convertible carrying out second welding process by the different pulse shape of realizing a series of formation different operation modes then.By counting the circulation in first operator scheme, first process is terminated, and second process begins to start.After this, the circulation of counting next process reaches the numerical value of a setting up to them, and this numeric representation welding machine is got back to first welding process with conversion.Therefore, arc welder is by carrying out two independently welding processes from a mode transitions for another operator scheme has with controller.The twin-stage or the biconditional operation of the uniqueness by arc welder, this welding machine can be carried out the welding operation of first process that is used alternatingly and second process.For example, high energy process is carried out one short period, and then, welding machine is converted to a low energy weld process.If these two processes are STT, the low energy STT cycle realizes realizing high energy STT week after date.Therefore, in one embodiment, first process is a high energy process, and second process is a low energy process.The cycle count of each process is to be used for carrying out whole welding operations in welding process by in turn realizing first and second welding processes.As an example, in a specific embodiment, first process is a constant voltage spray process with high heat.Second process is the GMAW or the low heat weld process of a pulse.In welding operation, controller is at first carried out first process of some circulations, carries out second process of some circulations then.In another embodiment of the present invention, first process is an impulse welding termination process, and wherein pulse has high energy or high heat.This process is used many cycles of low-heat STT welding process successively.By conversion between the cycle, just can carry out a required whole welding process in pulse period and STT.In another embodiment, first process is a high thermal pulse welding process.This process is transformed to one second welding process, and second welding process is a short arc constant voltage welding process.In yet another embodiment, first process is a high thermal pulse welding process.Second welding process is some row pulses, and wherein the energy of pulse is to be determined by the closed loop feedback of added power supply.Another example of the present invention is one, and to be connected into first series of pulses in the operation in impulse welding be the positive electrode that produces high heat.Second series pulse in the impulse welding termination process is born, and comprises electrode constant voltage pulses.By the conversion between these welding processes, can control the actual welding operation and reach optimal effectiveness with the performance that can make welding machine.
According to another kind of scheme of the present invention, first welding process of twin-stage or bifurcation electric arc welding machine is an impulse welding termination process.This process lasts till that arc voltage is shown as till the short circuit.Then, two stage welder is transformed to short circuit and welds process clearly, as STT welding interval.In this preferred embodiment, the signal that comes from the conversion of impulse welding termination process not only depends on the short circuit that the arc voltage interruption shows, but also depends on the time of timer.Only arc-welding machine control just is transformed to the short circuit reset procedure from first welding process of pulse mode when short circuit continues the time of one section setting.Timer preferably is set at and shows that this short circuit keeps 1.0ms at least, and is the setting-up time between 0.2 to 0.5ms at least more preferably greater than a scope.Therefore, when having only the actual short of existence, rather than an incipient short, arc welder just is transformed to second welding process that is used to remove the short circuit that detects.
According to the present invention, a kind of arc welder is provided, it comprises a speed-sensitive switch power supply with controller, this controller produces first and second welding processes in the space of passing between the welding rod that a workpiece and shifts to this workpiece.First process is used first current waveform, and second process is used second current waveform.A kind of circuit is used for carrying out conversion between first and second welding processes, wherein this circuit comprises a counter that is used for counting the first and second process waveforms.When the waveform counting of ongoing welding process reached the numerical value of selecting in advance of each welding process, this welding machine just was transformed to another welding process from ongoing process.By using this two stage welder, this arc-welding machine can carry out conversion according to counting or other parameter between the different welding process of two independence.
According to another kind of scheme of the present invention, a kind of two stage arc welder of this type is provided, it comprises a speed-sensitive switch power supply with controller, this controller is used to produce a pulse wave weld process and a welding process of removing the short circuit of surveying.When arc voltage is lower than numerical value that shows short circuit, a circuit is activated can produce a short-circuit signal, also be provided with a kind of switch, it can produce the process figure signal that forms with short-circuit signal by one controller is transformed to the short circuit reset procedure from the impulse wave process.In an aspect of the invention, this two stage welder comprises a timer, this timer only keeps the time of setting just to produce figure signal at short-circuit signal, and this setting-up time is approximately greater than 1.0ms, and is preferably more than the setting-up time of a scope between 0.2 to 0.5ms.Therefore, when short circuit kept one period of selecting in advance, this two stage welder was a short circuit clear operation pattern from the pulse operation mode conversion just.In a preferred embodiment, short circuit clear operation pattern is a STT welding process.
In accordance with yet a further aspect of the invention, provide a kind of method of operating of the type arc welder, this arc welder comprises a speed-sensitive switch power supply with controller.This controller passes first and second welding processes that the space between the welding rod that workpiece and shifts to this workpiece produces by a wire feeder.First process of this method has first current waveform, and second process has second current waveform.This method is included in the conversion between first and second welding processes, and realizes by the waveform of counting in first and second processes.When the waveform counting of ongoing welding process reached a numerical value of selecting in advance, ongoing welding process just was transformed to another welding process.In another scheme of the present invention, a kind of arc welder method of operating is provided, this arc welder comprises a speed-sensitive switch and has the power supply of the controller that produces impulse wave process and short circuit removing welding process.This method is included in when arc voltage is lower than a numerical value that shows short circuit can produce a short-circuit signal, by a figure signal that the detection of short-circuit signal is produced controller is transformed to the short circuit reset procedure from the impulse wave process then.In the method, figure signal only keeps the time of setting just to produce at short-circuit signal, and this setting-up time is in fact less than 1.0ms, and in fact roughly in the scope between 0.20 to 0.50ms.
Main purpose of the present invention provides a kind of twin-stage arc welder, and it can alternately carry out two welding processes in signal welding operation process.
Another purpose of the present invention provides a kind of aforesaid twin-stage arc welder, and this arc-welding machine has the counter that can count a process cycle, carries out conversion to determine when the process of carrying out at welding machine.
Another object of the present invention provides a kind of aforesaid twin-stage arc welder, and this two stage arc welder is carried out an impulse welding termination process till detecting a non-incipient short.Then, this two stage welder just is transformed to second operator scheme of removing short circuit.
A further object of the present invention provides a kind of method of operating of aforesaid two stage arc welder.
Another purpose of the present invention provides a kind of operation of aforesaid two stage arc welder, and wherein twin-stage relates to one of multiple combination of first a different welding process and visibly different second welding process.These two processes hocket in single welding operation process back and forth.
These and other objects and effect will become apparent from the description below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the combination block diagram and the wiring diagram of expression two stage arc welder preferred embodiment of the present invention;
Fig. 2 represents a kind of method of two stage arc welder and the flow chart of operation with block diagram format, one of them detected non-incipient short conversion the welding process of carrying out;
Fig. 3 is the flow chart in the two stage welder of representing further to realize constituting according to the present invention with block diagram format;
Fig. 4 is that expression is according to the current curve diagram of realizing two stage welder operation of the present invention shown in Figure 3.
The specific embodiment
With reference now to accompanying drawing,, wherein these illustrated purposes only illustrate a preferred embodiment of the present invention, rather than be used to limit the present invention, Fig. 1 represents a kind of novel two stage welder A with power supply 10, this power supply 10 comprises a speed-sensitive switch power supply that is illustrated as converter 12, this converter has a three-phase input power supply 14, and this power supply 14 is transformed to a DC railway line power supply 20,22 by rectifier 16.The output winding 30 of converter 12 is the elementary windings with transformer T of secondary windings 32, and secondary windings 32 is used for electric current is offered rectifier network 40.This network provides an electric current current potential by positive wire 42 and negative wire 44.A less standard inductor 50 is connected with the contact tip 54 of a standard, transmits welding rod 60 by contact tip 54, determines the arc slit that electric current can flow through in the arc welding process thereby this welding rod 60 forms with workpiece W electrode E at interval.Welding machine A carries out polytype arc welding by the slit that the electric current that will select waveform in advance flows through between electrode E and the workpiece W.Because arc melts wire 60 and workpiece W are to carry out welding operation, wire feeder 100 draws welding rod with a speed (WFS) of being determined by motor 104 rotary speeies from reel 102.This speed reads by a feedback velocity metre 110, and the input voltage of the pulse width modulator 112 by error amplifier 114 output is controlled.This amplifier has one and is expressed as required welding rod to first input 120 of sending speed (WFS) voltage.This speed can or more precisely be that the question blank of waveshape monitor 180 is controlled by an analog circuit.Input voltage 120 is determined the speed of motor 104, and its actual speed is monitored by velocity metre 110, is used for comparing with voltage on circuit 120.The actual speed feedback is the voltage on the incoming line 122.Like this, wire feed speed is just consistent with the welding process that welding machine A is carrying out.Current waveform by electrode E and workpiece W is controlled by software controller 130, such software controller 30 comprises a software pulse width modulator 132, and it is used for producing a voltage with a pulse rate of being determined by the setpoint frequency of oscillator 136 on output control line 134.Like this, the high-frequency impulse on the circuit 134 is controlled by the voltage of circuit 140, and the voltage of circuit 140 is the output with second error amplifier 150 of first input, and first input is controlled by current detecting or sensing current divider 152.The voltage of circuit 154 is represented the arc current of welding process.Command signal on the circuit 160 compares with the actual arc electric current of representing with voltage on the circuit 154 so that pulse width modulator 152 can be followed the tracks of the required waveform of waveshape monitor or generator 180 generations by command link 160.The wire feed speed of error amplifier 114 also is controlled by this waveshape monitor or generator.Generator 180 is that the generator of a cooperating is so that command signal 160 is mutually harmonious with wire feed speed signal or voltage (WFS) on the circuit 120.
According to new departure of welding machine A, a kind of switch 190 is provided, in fact, it is a software switch, as shown in Figure 1, it has the primary importance 192 and the second place 194.Switch is when position 192, and waveshape monitor 180 quilts are controlled according to the first process A of the Process Control System 200 of process A.Like this, Process Control System 200 is connected with cooperating waveshape monitor 180 can realize the process A of waveshape monitor 180 by controller 130.Equally, switch 190 is when position 194, and Process Control System 202 makes waveshape monitor 180 realize the second process B by the signal on the command link 160.Therefore, by the alteration switch 190 between position 192,194, welding machine A just can carry out two independently welding processes.Certainly, switch 190 is had more than two positions so that welding machine can be in turn or sequentially carried out welding process more than two, if wish such operation.In fact, preferably welding machine A only can alternately carry out two independently welding processes.According to another aspect of the present invention, the position of switch 190 is by controlling from the logic on the dotted line 210 of cycle rate counter 212 outputs.Among the rolling counters forward process A or each cycle among the process B.At the end of counting, set as counting selector 214 or counting selector 216, the logic on the circuit 210 is transformed to switch 190 other position that can realize other welding process.Counter 212 count down to a numerical value CA, is transformed to the process B that remains to till rolling counters forward to the numerical value CB then.Then, first process is returned in switch 190 conversion, i.e. process A.In this preferred embodiment, one of them process is high thermal process, and another process is low thermal process.Numerical value CA is identical in essence with CB.Therefore, this welding operation comprises low-heat part and high hot part, and these two parts are repeatedly realized the performance with the energy control operation in whole welding process, and no matter it is STT, pulse operation or other operation.As diagram, different welding processes can alternately be selected by counter.In fact, welding machine A can carry out mutual so that by the definite conversion from a process to another process of the parameter different with count value.For example, 170 pairs 172 of voltage sensors produce a voltage, and this voltage detecting short circuit is used for the migration between the first process A and the second process B in Fig. 2, and wherein second process is an arc reset procedure.Counting is significantly different, selects mutual parameter with can be for transforming to a selection course in advance after a given process transition is a detectable welding condition.
In fact, process A is common high energy process, and process B is a low energy process.Count value CA is identical in essence with CB.In order to change welding operation, numerical value CA is strengthened, or numerical value CB is reduced can improve the heat in the welding process.Equally, in order to reduce heat, numerical value CA is reduced or numerical value CB is strengthened.Use when certainly, these increases or the combination that reduces can be selected required total amount of heat in welding process.In a preferred embodiment, process A is identical with process B, but has different size waveforms.It can be pulse welding or STT welding.But according to the present invention, these processes may be different fully.For example, in the practice, process A is a high hot constant voltage spray process, and process B is the low thermal process of GMAW of a pulse.Counter 212 is set at the required total amount of heat of welding operation by counting selector 214,216.In fact, process A is the impulse welding termination process of a high heat, and process B is a STT welding process with lower wire feed speed.And process A is the impulse welding termination process of a high heat in practice, and process B is a short arc constant voltage process.Another embodiment of the invention, process A is an impulse welding termination process, process B is a closed-loop control process, is the process of controlling by out-put supply as an electric current.Another embodiment of the present invention, process A is a pulse positive electrode constant voltage welding process, process B is a pulse negative electrode constant voltage welding process.In embodiments of the invention, a polarity reversing switch is added in the output circuit of inductor 50 fronts, and corresponding polar circuit is transformed to switch 190 simultaneously.Other embodiment of the present invention comprises that the various combination of welding process is can carry out required whole welding processes.
Schematically illustrate a kind of intersection control routine 220 among Fig. 2, wherein waveform generator and controller 222 produce foregoing voltage on control circuit 134.Controller 130 is in square frame 222.As shown in Figure 1, this voltage outputs to the power supply 12 that the voltage control procedure control network 224 on the circuit 172 is monitored with voltage sensor 170.The timer 2 26 of process control network is set at one usually greater than time of 1.0ms, is setting-up time among the 0.2-0.5ms more preferably greater than normal range (NR).The output of timer network is a logic of pointing on decision-making square 230 circuits 232, is used to determine whether to exist the short circuit of a time of being detected greater than the setting-up time of timer 2 26.The position of switch 190 is controlled by decision-making square 230.When having the short circuit that surpasses timer 26 setting-up times, therefore switch 190 just is transformed to position 194, and when having long-term non-incipient short, switch 190 transforms to another position to carry out second welding process.In embodiments of the invention, first process is an impulse waveform that the waveform of determining according to the system shown in the square 240 is controlled.One of square 242 expression produce the system of STT waveform or other short circuit removing welding process.System 220 carries out first operator scheme of the impulse waveform that is defined as system's control of being represented by square 240.No matter when be short-circuited, the voltage of circuit 172 will drop to one below the threshold value.This has just determined a short circuit.This testing conditions carries out timing by timer 2 26.If short circuit duration surpasses the time that timer is set, the logic on the circuit 232 is just pointed to the decision-making square that does not have non-initial actual short.This logic is transformed to software switch 190 arc immediately and removes welding process, is expressed as a STT process.When short circuit was removed according to the short circuit reset procedure, the voltage on the circuit 172 was transformed to a plasma potential or arc voltage immediately.This situation is higher than threshold value, will make decision-making square 230 that switch 190 is transformed to position 192, with the impulse waveform that realizes controlling by the system that square 240 is represented.Therefore, system 220 does not relate to cycle rate counter, but it detects an actual welding process is transformed to another welding process from a welding process welding parameter.No matter when detect selected parameter, this process will take place rapidly and produce.
In Fig. 3 and 4, system 250 comprises a low heat weld process of representing with square 260.Process A is a low-heat STT welding process.Equally, high hot STT welding process is represented with square 262.Counter 212 makes a STT pulse 260a obtain handling as shown in Figure 4.Count down to the STT pulse 260a of anticipated number at cycle rate counter 212 after, the logic on the circuit 120 is transformed to position 194 with switch 190.As shown in Figure 4, this has just produced STT pulse 262a bigger or high heat.These high thermal pulses are counted according to the selected quantity of counter 212.Like this, the waveform of low-heat and Gao Re STT or the quantity in cycle just can be through overregulating to determine a net quantity of heat in the welding process.
The present invention relates to realize in proper order a kind of twin-stage or the multistage welding machine of significantly different welding processes.Preferably, the duration of these processes is determined by a counter; But, can use a parameter in order between welding process, to carry out conversion.Only representational process has been done discussion, other welding process is realizing that the present invention also can use.
Claims (68)
1. electric arc GMAW welding machine, it comprises a speed-sensitive switch power supply with controller, this controller is shifted to a workpiece and one between space between the welding rod of described workpiece and is produced first or second welding process, described first welding process is used first current waveform, described second welding process is used second current waveform, with a kind of circuit, be used between described first and second welding processes, carrying out conversion, described circuit comprises a counter that is used to count waveform described in described first and second welding processes, with a kind of circuit, be used for when the described waveform counting of ongoing described welding process reaches the numerical value of selecting in advance of this welding process, just ongoing welding process being transformed to another welding process in described first and second welding processes.
2. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described first welding process is a low-heat surface tension transient process.
3. electric arc GMAW welding machine as claimed in claim 2 is characterized in that: described second welding process is a high hot surface tension force transient process.
4. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described second welding process is a high hot surface tension force transient process.
5. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described first welding process is a high thermal process, and described second welding process is a low thermal process.
6. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described first welding process is an impulse welding termination process.
7. electric arc GMAW welding machine as claimed in claim 6 is characterized in that: described second welding process is a surface tension transient process.
8. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described second welding process is a short arc constant voltage process.
9. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described first welding process is a constant voltage spray process.
10. electric arc GMAW welding machine as claimed in claim 9 is characterized in that: described second welding process is an impulse welding termination process.
11. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described first welding process is the welding process of a closed power feedback.
12. electric arc GMAW welding machine as claimed in claim 11 is characterized in that: described second welding process is an impulse welding termination process.
13. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described first welding process is a high thermal process.
14. electric arc GMAW welding machine as claimed in claim 13 is characterized in that: described second welding process is a low thermal process.
15. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described second welding process is a low thermal process.
16. electric arc GMAW welding machine as claimed in claim 1 is characterized in that: described first welding process is a positive electrode process, and described second welding process is a negative electrode process.
17. electric arc GMAW welding machine as claimed in claim 16 is characterized in that: the described numerical value of selecting in advance is identical in essence in two described first welding processes and second welding process.
18. electric arc GMAW welding machine as claimed in claim 14 is characterized in that: the described numerical value of selecting in advance is identical in essence in two described first welding processes and second welding process.
19. electric arc GMAW welding machine as claimed in claim 7 is characterized in that: the described numerical value of selecting in advance is identical in essence in two described first welding processes and second welding process.
20. arc welder, it comprises a speed-sensitive switch power supply with controller, this controller is used to produce a pulse wave weld process and a surface tension transition welding process, a circuit, when arc voltage is lower than the value of an expression short circuit, it can be activated can produce a short-circuit signal, with a switch, it can produce the process figure signal that forms with described short-circuit signal by one described controller is transformed to described surface tension transition welding process from described pulse wave weld process.
21. arc welder as claimed in claim 20, it comprises a timer, is used for only keeping the time of setting just to produce described figure signal at described short-circuit signal.
22. arc welder as claimed in claim 21 is characterized in that: the described time is usually greater than 1.0ms.
23. arc welder as claimed in claim 21 is characterized in that: the described time is greater than the setting-up time of a scope between 0.2 to 0.5ms.
24. arc welder, it comprises a speed-sensitive switch power supply with controller, this controller is used to produce a pulse wave weld process and welding process is removed in a short circuit, a circuit, when arc voltage is lower than the value of an expression short circuit, it can be activated can produce a short-circuit signal, with a switch, it can produce the process figure signal that forms with described short-circuit signal by one described controller is transformed to described short circuit removing welding process from described pulse wave weld process.
25. arc welder as claimed in claim 24, it comprises a timer, is used for only keeping the time of setting just to produce described figure signal at described short-circuit signal.
26. arc welder as claimed in claim 24 is characterized in that: the described time is usually greater than 1.0ms.
27. arc welder as claimed in claim 24 is characterized in that: the described time is greater than the setting-up time of a scope between 0.2 to 0.5ms.
28. the method for operating of an electric arc GMAW welding machine, this arc welder comprises a speed-sensitive switch power supply with controller, this controller is shifted to by wire feeder workpiece and one between space between the welding rod of described workpiece and is produced first or second welding process, described first welding process is used first current waveform, and described second welding process is used second current waveform, and described method comprises:
(a) conversion between described first and second welding processes;
(b) the described waveform in described first and second welding processes of counting; With
(c) when the described waveform counting of ongoing welding process reaches the numerical value that this welding process selects in advance, be transformed to another welding process described first and second welding processes from ongoing welding process.
29. a kind of method as claimed in claim 28 is characterized in that: described first welding process is a low-heat surface tension transient process.
30. a kind of method as claimed in claim 29 is characterized in that: described second welding process is a high hot surface tension force transient process.
31. a kind of method as claimed in claim 28 is characterized in that: described second welding process is a high hot surface tension force transient process.
32. a kind of method as claimed in claim 28 is characterized in that: described first welding process is a high thermal process, and described second welding process is a low thermal process.
33. a kind of method as claimed in claim 28 is characterized in that: described first welding process is an impulse welding termination process.
34. a kind of method as claimed in claim 33 is characterized in that: described second welding process is a surface tension transient process.
35. a kind of method as claimed in claim 28 is characterized in that: described second welding process is a short arc constant voltage process.
36. a kind of method as claimed in claim 28 is characterized in that: described first welding process is a constant voltage spray process.
37. a kind of method as claimed in claim 36 is characterized in that: described second welding process is an impulse welding termination process.
38. a kind of method as claimed in claim 28 is characterized in that: described first welding process is the welding process of a closed power feedback.
39. a kind of method as claimed in claim 28 is characterized in that: described second welding process is an impulse welding termination process.
40. a kind of method as claimed in claim 28 is characterized in that: described first welding process is a high thermal process.
41. a kind of method as claimed in claim 40 is characterized in that: described second welding process is a low thermal process.
42. a kind of method as claimed in claim 28 is characterized in that: described second welding process is a low thermal process.
43. a kind of method as claimed in claim 28 is characterized in that: described first welding process is a positive electrode process, and described second welding process is a negative electrode process.
44. a kind of method as claimed in claim 43 is characterized in that: the described numerical value of selecting in advance is identical in essence in described first welding process and second welding process.
45. a kind of method as claimed in claim 41 is characterized in that: the described numerical value of selecting in advance is identical in essence in described first welding process and second welding process.
46. a kind of method as claimed in claim 34 is characterized in that: the described numerical value of selecting in advance is identical in essence in described first welding process and second welding process.
47. the method for operating of an arc welder, this arc welder comprise a speed-sensitive switch power supply with controller, described controller is used to produce a pulse wave weld process and welding process is removed in a short circuit, and described method comprises:
(a) when being lower than the value of an expression short circuit, arc voltage can produce a short-circuit signal; With
(b) by a process figure signal that produces with the formation of described short-circuit signal described controller is transformed to described short circuit from described pulse wave weld process and removes welding process.
48. a kind of method as claimed in claim 47, it comprises:
(c) described figure signal only keeps the time of setting to produce at described short-circuit signal.
49. a kind of method as claimed in claim 48 is characterized in that: the described time is usually greater than 1.0ms.
50. a kind of method as claimed in claim 48 is characterized in that: the described time is greater than the setting-up time of a scope between 0.2 to 0.5ms.
51. a kind of method as claimed in claim 50 is characterized in that: it is the surface tension transient process that welding process is removed in described short circuit.
52. a kind of method as claimed in claim 49 is characterized in that: it is the surface tension transient process that welding process is removed in described short circuit.
53. a kind of method as claimed in claim 48 is characterized in that: it is the surface tension transient process that welding process is removed in described short circuit.
54. a kind of method as claimed in claim 47 is characterized in that: it is the surface tension transient process that welding process is removed in described short circuit.
55. arc welding machine, comprise a power supply based on the speed-sensitive switch converter, described power supply provides current waveform for a specific weld process between electrode and the workpiece, this waveform is produced by a series of Current Control pulses from a pulse width modulator, described pulse has the width of the real-time current of a described waveform of decision, and a switch, be used for based on a signal that is sent to this switch and conversion between two welding processes.
56. arc welding machine as claimed in claim 55 is characterized in that: operate described switch by responding a counter that is used for count cycle.
57. arc welding machine as claimed in claim 55 is characterized in that: operate described switch by responding a detected welding parameter.
58. arc welding machine as claimed in claim 55 is characterized in that: operate described switch by responding a detected arc voltage level of sensor.
59. arc welding machine as claimed in claim 55 is characterized in that: operate described switch by responding a timer.
60. arc welding machine, comprise a power supply based on the speed-sensitive switch converter, described power supply provides current waveform for a specific weld process between electrode and the workpiece, described waveform is produced by waveform generator, described waveform generator has the output of controlling a pulse width modulator according to a selected input circuit that is input to described waveform generator, and a switch, make described selected input circuit based on a signal that is sent to described switch and conversion between two welding processes.
61. arc welding machine as claimed in claim 60 is characterized in that: operate described switch by responding a counter that is used for count cycle.
62. arc welding machine as claimed in claim 60 is characterized in that: operate described switch by responding a detected welding parameter.
63. arc welding machine as claimed in claim 60 is characterized in that: operate described switch by responding a detected arc voltage level of sensor.
64. arc welding machine as claimed in claim 60 is characterized in that: operate described switch by responding a timer.
65. arc welder, comprise a speed-sensitive switch power supply with controller, this controller utilizes first current waveform that comprises first series of pulses to produce a pulse wave weld process and utilize second current waveform that comprises a second series pulse to produce short circuit removing welding process; A circuit, when arc voltage was lower than the value of an expression short circuit, this circuit can be activated to produce a short-circuit signal; With a switch, this switch can produce the process figure signal that forms with described short-circuit signal by one described controller is transformed to short circuit removing welding process from described pulse wave weld process.
66. as the described arc welder of claim 65, comprise a timer, be used for only keeping the time of setting just to produce described figure signal at described short-circuit signal.
67. as the described arc welder of claim 65, it is characterized in that: the described time is usually greater than 1.0ms.
68. as the described arc welder of claim 65, it is characterized in that: the described time is greater than the setting-up time of a scope between 0.2 to 0.5ms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/091,278 US6717107B1 (en) | 2001-05-29 | 2002-03-06 | Two stage welder and method of operating same |
| US10/091,278 | 2002-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1638907A CN1638907A (en) | 2005-07-13 |
| CN100528445C true CN100528445C (en) | 2009-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038052989A Expired - Fee Related CN100528445C (en) | 2002-03-06 | 2003-01-06 | Two-stage welder and method of operating same |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1490194A4 (en) |
| JP (1) | JP4854927B2 (en) |
| KR (1) | KR100700994B1 (en) |
| CN (1) | CN100528445C (en) |
| AU (1) | AU2003210444B2 (en) |
| BR (1) | BR0308219A (en) |
| CA (1) | CA2474938A1 (en) |
| MX (1) | MXPA04008602A (en) |
| RU (1) | RU2293000C2 (en) |
| WO (1) | WO2003076114A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005042199A1 (en) * | 2003-10-23 | 2005-05-12 | Fronius International Gmbh | Method for controlling and/or adjusting a welding process and welding device for carrying out a welding process |
| SE527841C2 (en) * | 2003-11-07 | 2006-06-20 | Esab Ab | Welding method Apparatus and software for gas metal arc welding with continuously advanced electrode |
| US8203099B2 (en) * | 2004-06-04 | 2012-06-19 | Lincoln Global, Inc. | Method and device to build-up, clad, or hard-face with minimal admixture |
| DE102005024802A1 (en) * | 2005-05-27 | 2006-11-30 | Ewm Hightec Welding Gmbh | Welding current source and method for MIG / MAG welding |
| NZ618226A (en) * | 2011-05-26 | 2015-03-27 | Thermal Dynamics Corp | Systems for and method of generating a weld with energy conservation and improved cooling in welding machines |
| US9676051B2 (en) * | 2012-10-18 | 2017-06-13 | Lincoln Global, Inc. | System and methods providing modulation schemes for achieving a weld bead appearance |
| US11845149B2 (en) * | 2017-01-06 | 2023-12-19 | Lyco Manufacturing, Inc. | Power supply and method for dual process welding |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781511A (en) * | 1972-03-23 | 1973-12-25 | H Rygiol | Method of welding employing square wave current pulses and causing the molten metal to resonate |
| US3826890A (en) * | 1972-09-01 | 1974-07-30 | P Bartlett | Welding system controller |
| JPS5970469A (en) * | 1982-10-14 | 1984-04-20 | Mitsubishi Electric Corp | Dc arc welding device |
| JPS61279363A (en) * | 1985-06-04 | 1986-12-10 | Matsushita Electric Ind Co Ltd | Consumable electrode type welding use power source |
| US4889969A (en) * | 1987-04-28 | 1989-12-26 | Matsushita Electric Industrial Co., Ltd. | Reduced-spatter pulse arc welding machine for use with a consumable electrode |
| JPH01133679A (en) * | 1987-11-18 | 1989-05-25 | Kobe Steel Ltd | Method for controlling output of power source for consumable electrode ac arc welding |
| WO1991001842A1 (en) * | 1989-08-02 | 1991-02-21 | Mitsubishi Denki Kabushiki Kaisha | Pulse welding apparatus |
| JP3003159B2 (en) * | 1989-12-28 | 2000-01-24 | 株式会社ダイヘン | AC arc welding power supply |
| JPH09150267A (en) * | 1995-11-27 | 1997-06-10 | Kobe Steel Ltd | Carbon dioxide shield arc welding |
| JP2001001142A (en) * | 1999-06-24 | 2001-01-09 | Daihen Corp | Control method for arc length of pulse arc welding |
| AT412388B (en) * | 2000-01-20 | 2005-02-25 | Fronius Schweissmasch Prod | METHOD FOR REGULATING A WELDING CURRENT SOURCE WITH A RESONANCE CIRCUIT |
| US6248976B1 (en) * | 2000-03-14 | 2001-06-19 | Lincoln Global, Inc. | Method of controlling arc welding processes and welder using same |
-
2003
- 2003-01-06 KR KR1020047013794A patent/KR100700994B1/en not_active IP Right Cessation
- 2003-01-06 CA CA002474938A patent/CA2474938A1/en not_active Abandoned
- 2003-01-06 MX MXPA04008602A patent/MXPA04008602A/en active IP Right Grant
- 2003-01-06 EP EP03744094A patent/EP1490194A4/en not_active Withdrawn
- 2003-01-06 WO PCT/US2003/000320 patent/WO2003076114A1/en active Application Filing
- 2003-01-06 JP JP2003574369A patent/JP4854927B2/en not_active Expired - Fee Related
- 2003-01-06 BR BR0308219-9A patent/BR0308219A/en not_active IP Right Cessation
- 2003-01-06 CN CNB038052989A patent/CN100528445C/en not_active Expired - Fee Related
- 2003-01-06 AU AU2003210444A patent/AU2003210444B2/en not_active Ceased
- 2003-01-06 RU RU2004129726/02A patent/RU2293000C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA04008602A (en) | 2004-12-06 |
| CA2474938A1 (en) | 2003-09-18 |
| EP1490194A1 (en) | 2004-12-29 |
| KR100700994B1 (en) | 2007-04-02 |
| KR20040086476A (en) | 2004-10-08 |
| BR0308219A (en) | 2004-12-21 |
| AU2003210444A1 (en) | 2003-09-22 |
| JP4854927B2 (en) | 2012-01-18 |
| JP2005523159A (en) | 2005-08-04 |
| AU2003210444B2 (en) | 2007-08-23 |
| CN1638907A (en) | 2005-07-13 |
| RU2293000C2 (en) | 2007-02-10 |
| WO2003076114A1 (en) | 2003-09-18 |
| RU2004129726A (en) | 2005-04-10 |
| EP1490194A4 (en) | 2009-07-01 |
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