WO2017129250A1 - Verfahren und vorrichtung zur ultraschallbehandlung und beurteilen der ultraschallbehandlung - Google Patents
Verfahren und vorrichtung zur ultraschallbehandlung und beurteilen der ultraschallbehandlung Download PDFInfo
- Publication number
- WO2017129250A1 WO2017129250A1 PCT/EP2016/051872 EP2016051872W WO2017129250A1 WO 2017129250 A1 WO2017129250 A1 WO 2017129250A1 EP 2016051872 W EP2016051872 W EP 2016051872W WO 2017129250 A1 WO2017129250 A1 WO 2017129250A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ultrasonic
- welding
- treatment
- value
- quality
- Prior art date
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Classifications
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
- B29C66/9512—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
- B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
- B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/32—Wires
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/38—Conductors
Definitions
- the present invention relates to a process for Ultra ⁇ sonication at least a portion and for judging the quality of the ultrasonic treatment as well as an ultrasonic welding device for ultrasonic treatment of at least a part, and for judging the quality of these Ultraschallbe ⁇ treatment.
- An ultrasonic treatment according to the present invention involves an energy input into the at least one part.
- the ultrasonic treatment may comprise the production of an ultrasonic welded joint of at least two parts.
- an ultrasonic treatment in the present invention may also be the compaction of a single part whereby the part can be prepared, for example, the latest, ⁇ direct connection to a further part.
- the parts may be, for example, be strands which may be made of a ferrous metal such as copper or aluminum best ⁇ hen.
- the parts may be at least one strand or at least one cable and a terminal or a contact ⁇ part, which are connected together.
- the parts may be plastic parts.
- the coefficient of friction is between the parts, or between components of a single piece (such as between a ⁇ individual wires of a strand) of great relevance. It determines what proportion of the introduced ultrasound energy actually provides for a welding effect. However, the coefficient of friction can be influenced by various process-related disturbances.
- a method and an ultrasonic welding to be provided means which allow a reli possible ⁇ permeable assessment of the quality of an ultrasonic treatment, in particular an ultrasonic welding connection, even if the friction coefficient varies, without a direct on ⁇ manoeuvrable determining the coefficient of friction.
- this is achieved by a method for ultrasonically treating at least one part and for assessing the quality of this ultrasound treatment.
- it is a method for producing an ultrasonic welding connection of at least two parts and for assessing the quality of this ultrasonic welding connection.
- the at least two parts can be, for example, min ⁇ least two strands or at least one strand and a terminal. Alternatively, the two parts may also be plastic parts.
- This ultrasonic welding joint is formed by ultrasonic treatment of the at least two welded parts.
- the inventive method includes the following Schrit ⁇ te: a) ultrasonic treatment of the at least one part, in particular ⁇ sondere welding of at least two parts by means of an ultrasonic welding device, wherein during the ultrasonic treatment, especially during the herstel ⁇ development of the ultrasonic welding connection, at at least one reference value of a welding parameter a judgment value is determined which characterizes the treatment process, especially the welding operation with the respective reference value, so that a said at least one Beurtei ⁇ lung worth containing judgment values set results; b) comparing the determined in step a) judgment values set ⁇ rich with at least one predetermined Akzeptanzbe; c) assessing the quality of the ultrasonic treatment, in particular the ultrasonic welding connection, i.
- the welding parameter may be, for example, one time, one set. brought power or an energy act.
- a judgment value is determined in step a).
- the assessment value may be, for example, an oscillation frequency of the sonotrode or a concentration of a substance in the ambient air.
- the assessment value set may include or consist of the at least one assessment value.
- the appraisal values set can also contain all of the reference values and to ⁇ related appraisal values or consist thereof.
- This assessment value set is compared in step b) with at least one predetermined acceptance range. Depending on whether or not the assessment value set lies within the prescribed acceptance range, in step c) the quality of the ultrasound treatment, in particular the ultrasound welding connection, is assessed as either good or not good.
- the ultrasonic welding device includes a sonotrode, by means of which ultrasonic vibrations can be introduced into the at least one part, in particular in the min ⁇ least two parts to be welded.
- judging value is a Schwingungsfre acid sequence used in the respective reference value, with which the sonotrode is excited (in particular with ⁇ means of a vibration generator), and the judgment values ⁇ kit contains at least a pair of a reference value and a associated vibration frequency used.
- the predetermined acceptance range includes pairs of reference values of the welding parameter and associated vibration frequencies.
- the sonotrode can be excited to oscillate, for example by means of a Schwingungsge ⁇ nerators.
- the oscillation frequency is guided by means of a control device during welding along a predetermined time-dependent setpoint curve.
- the dependence of a resonance frequency of the sonotrode on the forces acting on it can be taken into account by the frequency of oscillation used being tracked as a function of the welding process. This can be done at ⁇ play a manner that the oscillation frequency used in a reference value is an oscillation frequency at which at this reference value, an impedance is optimized.
- an ultrasonic welding device have a sonotrode and an optional vibration generator and an optionally existing ultrasonic converter in each case a nominal impedance.
- the impedance of the sonotrode changes under the influence of the forces prevailing during the ultrasound treatment, so that a variable load impedance arises.
- An optimization of the impedance and will be understood hereinafter to mean that the impedance of the horn is tuned to the Impe ⁇ impedance of the vibration generator and / or the ultrasonic converter so that these impedances have similar sizes here.
- the impedance results in a known manner from the current and the voltage and their relative phase position.
- the quality of the Ultraschallbe ⁇ action is judged to be good, when the oscillation frequency is used for each reference value within a predetermined time for the jewei ⁇ reference value vibration frequency range. This quality assessment is computationally simple, yet reliable.
- the determined in step a) judging characterized ⁇ value shown at the reference value a state of the ambient air in the region of at least ⁇ a treated part, in particular ⁇ sondere in the welded parts.
- a state of the ambient air in the region of a compression space of the ultrasonic welding device can be determined. Contains residues to be treated, in particular the part to be welded, such as those mentioned above Drawing oils or insulating materials, this has an influence on the ambient air, which in turn according to the invention can be exploited to assess the quality of the ultrasonic treatment.
- a contained in the ambient air combustion product so for example, a Burn ⁇ voltage product of a drawing oil or an insulating material such as silicone, so as carbon particles.
- the concentration is compared with a predetermined maximum concentration of this substance, in particular this combustion product . This maximum concentration then defines the acceptance range.
- a predetermined maximum concentration of this substance in particular this combustion product . This maximum concentration then defines the acceptance range.
- said welding parameters can for example be vergange ⁇ ne time since the beginning of treatment, especially of welding.
- a judged value determined so crizspielswei ⁇ se a vibration frequency or a concentration of a substance in the ambient air, in particular a present in the form of particles substance in the ambient air.
- an associated assessment value can also be determined at two or more points in time (ie at two or more reference values of the welding parameter time).
- the welding parameter may be the power introduced into a sonotrode of the ultrasonic welding apparatus. This introduced power can be determined in a manner known per se, for example, from the current and the voltage and their relative phase position, with which a Schwingungsgenera ⁇ tor is operated, by means of which the sonotrode is excited to vibrate.
- the welding parameter may be the energy introduced into a sonotrode of the ultrasonic welding device since the start of the ultrasonic treatment, in particular welding. Also, this energy can be determined in itself be ⁇ known manner, especially by temporal In ⁇ gration since the start of ultrasound treatment, especially of welding, introduced into the horn performance.
- the welding parameter may be a position of one of the components defining a compression space of the ultrasonic welding apparatus.
- the welding parameter may be a welding force with which a sonotrode of the ultrasonic welding device is pressed against an anvil of the ultrasonic welding device.
- the welding parameter may be the temperature in the region of the at least one treated part, for example in the region of a compression space of the ultrasonic welding device.
- step c) The result of the assessment in step c) is preferably output from ⁇ . Such an issue may occur if - In step c) the quality of the ultrasonic treatment, in particular the ultrasonic welding, is judged to be good and / or
- step c) the quality of the ultrasonic treatment, in particular the ultrasonic welding, is judged not good.
- an output can only take place if the quality is judged to be good, or only when it is judged to be good, or it can be made an issue in both ge ⁇ called cases.
- Another aspect of the invention relates to an ultrasonic welding device for ultrasonic treatment of at least one part and for assessing the quality of this ultrasound treatment .
- it may welding device to an ultrasound for producing an ultrasonic welding connection of at least two parts act, in particular an ultrasonic welding connection of two strands, at least one strand and a terminal or at least two parts ⁇ plastic.
- This ultrasonic welding device can be used in a method according to the invention described above. It contains
- a sonotrode by means of which ultrasonic vibrations can be introduced into the at least one part
- Determining means for determining an assessment value during the ultrasound treatment, in particular during the welding of the parts, on at least one reference value of a welding parameter, preferably on several reference values of a welding parameter, wherein the assessment value characterizes the treatment process, in particular the welding process, at the respective reference value, such that results in a the at least one judgment value containing Beurtei ⁇ lung set of values; - Computing means for comparing the evaluation value set with at least one predetermined acceptance range and for assessing the quality of the ultrasonic treatment, in particular the ultrasonic welding compound, i. good if the assessment value set is within the given acceptance range; or ii. as not good, if the judgment value set is ⁇ from the predetermined acceptance range.
- the determining means may be formed as frequency determining means for determining a used oscillation frequency with which the sonotrode is excited.
- the oscillation frequency used forms the assessment value
- the assessment value set contains at least one pair of a reference value of the welding parameter and an associated ver ⁇ used oscillation frequency.
- the Schwingungsfre acid sequence used in a reference value may be an oscillation frequency at which at this reference value in the above sense an impedance is optimized.
- the determining means are designed as air determining means for determining a state of the other ⁇ ambient air in the region of at least one part being treated, particularly of the welded parts.
- the air determining means can be arranged in the region of a sealing space of the ultrasonic welding device. In this case, this state of the ambient air forms the evaluation value.
- the air-determining means are preferably used for determining a concentration of a predetermined air present in the ambient air. formed and the computing means are designed to Ver ⁇ equal to this concentration with a predetermined maximum concentration and / or a predetermined minimum concentration.
- the fabric can be especially an item in the ambient air ⁇ combustion product, such as carbon particles.
- the air determination means can be designed as a per se known gas analyzer, smoke detector, fire detector or particle analyzer.
- the ultrasonic welding apparatus to include both frequency determining means and air determining means.
- the ultrasonic welding apparatus includes output means for outputting corresponding information if the quality of the ultrasonic treatment is judged to be good and / or if it is judged not to be good.
- output means for outputting corresponding information if the quality of the ultrasonic treatment is judged to be good and / or if it is judged not to be good.
- the user of the ultrasonic welding device can be informed if the quality of the ultrasound treatment, particularly the ultrasonic welding joint, is judged to be good, if it is judged to be good, or it can be done in two cases mentioned an issue.
- FIG. 1 shows a schematic representation of an ultrasonic welding device according to the invention
- FIG. 2 a diagram for the representation of the invention
- FIG. 1 shows, in a schematic representation that does not conform to the scale, an ultrasonic welding device 10 for welding strands with one another, strands with terminals or plastic parts with one another.
- This ultrasound Welding device 10 includes a compression space 11, which is bounded by the working surface of a sonotrode 12, the working surface of an anvil 13 and the boundary surfaces of two side boundary elements 14, 15.
- the left side ⁇ limiting element 14 is slidably disposed in the horizontal direction relative to the sonotrode 12, while the right Be ⁇ tenbegrenzungselement 15 in the vertical direction relative to the sonotrode 12 is slidably disposed or vice versa.
- the anvil 13 is slidably disposed in the horizontal direction relative to the right side limiting element 15.
- the anvil 13 in the direction of the sonotrode 12 displaceable ⁇ bar, whereby a welding height h of the compression space 11 can be adjusted.
- a welding height h of the compression space 11 can be adjusted.
- one or more parts not shown here can be inserted, such as one or more strands to be welded there under the action of the sonotrode 12 or welded together and thereby treated.
- one or more strands, as well as a terminal in the compression space 11 can be inserted so that the wires are welded to the terminal Kgs ⁇ NEN.
- the ultrasonic welding apparatus 10 further includes a controller 16 for controlling the welding operation.
- the control device 16 controls, for example, the movement of the sonotrode 12, the anvil 13 and the side boundary elements 14, 15, the welding force with which the sonotrode 12 is pressed against the anvil 13 during the welding process, and the oscillation amplitude and the optionally time-dependent oscillation frequency of the sonotrode 12. the means of a
- Vibration generator 17 is excited to vibrate.
- the ultrasonic welding device 10 contains a gas analyzer or particle analyzer 20 which is arranged in the region of the compression space 11 and forms an air determination means in the sense of the present invention.
- This gas analyzer or particle analyzer 20 the concentration of one present in the region of the compression space 11 the substance can be determined at one or more points of time of the welding operation, the special ⁇ the concentration of carbon particles.
- the concentrations determined at one or more times together with these times constitute an evaluation value set.
- this judgment values ⁇ set can be compared with a predetermined acceptance range.
- the measured concentration of Stof ⁇ fes can be compared with a predetermined maximum concentration and / or a predetermined maximum concentration of this substance.
- Exceeds, for example, the measured concentration of the pre-added ⁇ maximum concentration, the ultrasonic welding is judged as no good connection.
- an information on the judgment issued via output ⁇ medium that can be configured for example as a monitor 23rd
- the ultrasonic welding device 10 includes alternatively or in addition to the gas analyzer or particle analyzer 20 frequency determining means 21, with the aid of a vibration ⁇ frequency is determined, with which the sonotrode 12 is excited at one or more times. It can be one
- Vibration frequency can be determined and adjusted, in which at this time in the above sense, an impedance is optimized. This results in associated vibration frequencies at the times.
- a dashed line shows the time profile of this oscillation frequency used.
- a solid line is a predetermined setpoint curve the vibration frequency shown.
- This target curve was determined for ei ⁇ nen welding process with parts that do not contain residues of drawing oils or insulation materials.
- xi 400 ms
- X2 800 ms
- X3 1200 ms (ie at three reference values of a welding parameter x, which is formed here by the time)
- the oscillation frequency used is compared with the oscillation frequency of the setpoint curve.
- an oscillation frequency range 18 represented by a respective bar is given, within which the oscillation frequency used must be, so that the ultrasonic welding joint is judged to be good.
- the oscillation frequency used is not within this given before ⁇ oscillation frequency range 18 Qua ⁇ formality of the ultrasonic welded joint is judged to be no good.
- This assessment can also be output via the monitor 23.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quality & Reliability (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2016/051872 WO2017129250A1 (de) | 2016-01-29 | 2016-01-29 | Verfahren und vorrichtung zur ultraschallbehandlung und beurteilen der ultraschallbehandlung |
DE112016006335.0T DE112016006335A5 (de) | 2016-01-29 | 2016-01-29 | Verfahren und Vorrichtung zur Ultraschallbehandlung und Beurteilen der Ultraschallbehandlung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2016/051872 WO2017129250A1 (de) | 2016-01-29 | 2016-01-29 | Verfahren und vorrichtung zur ultraschallbehandlung und beurteilen der ultraschallbehandlung |
Publications (1)
Publication Number | Publication Date |
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WO2017129250A1 true WO2017129250A1 (de) | 2017-08-03 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2016/051872 WO2017129250A1 (de) | 2016-01-29 | 2016-01-29 | Verfahren und vorrichtung zur ultraschallbehandlung und beurteilen der ultraschallbehandlung |
Country Status (2)
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DE (1) | DE112016006335A5 (de) |
WO (1) | WO2017129250A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429776A1 (de) * | 1984-08-13 | 1986-02-13 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur qualitaetskontrolle beim ultraschallschweissen sowie zugehoerige vorrichtung |
DE10350809B3 (de) * | 2003-10-29 | 2005-07-07 | Schunk Ultraschalltechnik Gmbh | Verfahren zum Verschweissen von Leitern |
US20130105557A1 (en) * | 2011-10-26 | 2013-05-02 | GM Global Technology Operations LLC | Quality status display for a vibration welding process |
DE102013222876A1 (de) * | 2012-11-16 | 2014-05-22 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Automatisches Überwachen einer Vibrationsschweisseinrichtung |
US20150369779A1 (en) * | 2013-01-15 | 2015-12-24 | Nissan Motor Co., Ltd. | Welding state inspection method |
-
2016
- 2016-01-29 WO PCT/EP2016/051872 patent/WO2017129250A1/de active Application Filing
- 2016-01-29 DE DE112016006335.0T patent/DE112016006335A5/de active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429776A1 (de) * | 1984-08-13 | 1986-02-13 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur qualitaetskontrolle beim ultraschallschweissen sowie zugehoerige vorrichtung |
DE10350809B3 (de) * | 2003-10-29 | 2005-07-07 | Schunk Ultraschalltechnik Gmbh | Verfahren zum Verschweissen von Leitern |
US20130105557A1 (en) * | 2011-10-26 | 2013-05-02 | GM Global Technology Operations LLC | Quality status display for a vibration welding process |
DE102013222876A1 (de) * | 2012-11-16 | 2014-05-22 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Automatisches Überwachen einer Vibrationsschweisseinrichtung |
US20150369779A1 (en) * | 2013-01-15 | 2015-12-24 | Nissan Motor Co., Ltd. | Welding state inspection method |
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DE112016006335A5 (de) | 2018-10-18 |
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