Michael J. Karagoulis

Person

Okemos, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Steel workpiece comprising an alloy substrate and a coating, and a...
- Patent number 11,752,566
- Issue date Sep 12, 2023
- GM Global Technology Operations LLC
- Zhenke Teng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of joining steel work-pieces having different gauge ratios
- Patent number 11,590,601
- Issue date Feb 28, 2023
- GM Global Technology Operations LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pretreatment of weld flanges to mitigate liquid metal embrittlement...
- Patent number 11,548,091
- Issue date Jan 10, 2023
- GM Global Technology Operations LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Mechanical performance of al-steel weld joints
- Patent number 11,524,358
- Issue date Dec 13, 2022
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High temperature coatings to mitigate weld cracking in resistance w...
- Patent number 11,441,039
- Issue date Sep 13, 2022
- GM Global Technology Operations LLC
- Zhenke Teng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Metallic component and method of reducing liquid metal embrittlemen...
- Patent number 11,433,646
- Issue date Sep 6, 2022
- GM Global Technology Operations LLC
- Charles Enloe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of joining steel having different resistivities
- Patent number 11,383,319
- Issue date Jul 12, 2022
- GM Global Technology Operations LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Resistance spot brazing workpiece stack-ups having one or more thin...
- Patent number 11,318,548
- Issue date May 3, 2022
- GM Global Technology Operations LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Weld gun cap dresser cutter
- Patent number 11,224,933
- Issue date Jan 18, 2022
- GM Global Technology Operations LLC
- Michael J. Karagoulis
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrode for resistance spot welding of dissimilar materials
- Patent number 11,084,119
- Issue date Aug 10, 2021
- GM Global Technology Operations LLC
- David Yang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Weld schedule for resistance spot welding of aluminum alloy workpieces
- Patent number 11,045,894
- Issue date Jun 29, 2021
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Resistance welding electrode
- Patent number 10,981,244
- Issue date Apr 20, 2021
- GM Global Technology Operations LLC
- Hui-ping Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Multi-step direct welding of an aluminum-based workpiece to a steel...
- Patent number 10,981,243
- Issue date Apr 20, 2021
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Programmable polarity module for DC resistance spot welding
- Patent number 10,940,557
- Issue date Mar 9, 2021
- GM Global Technology Operations LLC
- Michael J. Karagoulis
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Mating electrodes for resistance spot welding of aluminum workpiece...
- Patent number 10,766,095
- Issue date Sep 8, 2020
- GM Global Technology Operations LLC
- Hui-Ping Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Resistance spot welding of aluminum-to-aluminum, aluminum-to-steel,...
- Patent number 10,682,724
- Issue date Jun 16, 2020
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Alternately direct resistance spot welding of Al-to-Al, al-to-steel...
- Patent number 10,675,704
- Issue date Jun 9, 2020
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding electrode cutting tool and method of using the same
- Patent number 10,610,956
- Issue date Apr 7, 2020
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding electrode cutting tool and method of using the same
- Patent number 10,456,856
- Issue date Oct 29, 2019
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Weld face design for spot welding
- Patent number 10,335,891
- Issue date Jul 2, 2019
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Weld electrode for attractive weld appearance
- Patent number 10,335,892
- Issue date Jul 2, 2019
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power pulse method for controlling resistance weld nugget growth an...
- Patent number 10,272,515
- Issue date Apr 30, 2019
- GM Global Technology Operations LLC
- Michael J. Karagoulis
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Resistive welding electrode and method for spot welding steel and a...
- Patent number 10,259,071
- Issue date Apr 16, 2019
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Multi-stage resistance spot welding method for workpiece stack-up h...
- Patent number 10,245,675
- Issue date Apr 2, 2019
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Resistance spot welding steel and aluminum workpieces using electro...
- Patent number 10,052,710
- Issue date Aug 21, 2018
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrode for resistance spot welding of dissimilar metals
- Patent number 10,010,966
- Issue date Jul 3, 2018
- GM Global Technology Operations LLC
- David S. Yang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Multi-step direct welding of an aluminum-based workpiece to a steel...
- Patent number 9,999,938
- Issue date Jun 19, 2018
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Weld schedule for resistance spot welding of aluminum alloy workpieces
- Patent number 9,969,026
- Issue date May 15, 2018
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrode for spot welding
- Patent number 9,925,617
- Issue date Mar 27, 2018
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Systems, processes and apparatuses for automated handling of non-fe...
- Patent number 9,914,599
- Issue date Mar 13, 2018
- GM Global Technology Operations LLC
- Chandra S. Namuduri
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
STEEL WORKPIECE COMPRISING AN ALLOY SUBSTRATE AND A COATING, AND A...
- Publication number 20230234159
- Publication date Jul 27, 2023
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Zhenke Teng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
HIGH TEMPERATURE COATINGS TO MITIGATE WELD CRACKING IN RESISTANCE W...
- Publication number 20220195207
- Publication date Jun 23, 2022
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Zhenke Teng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
PRETREATMENT OF WELD FLANGES TO MITIGATE LIQUID METAL EMBRITTLEMENT...
- Publication number 20210107086
- Publication date Apr 15, 2021
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF JOINING STEEL WORK-PIECES HAVING DIFFERENT GAUGE RATIOS
- Publication number 20210086287
- Publication date Mar 25, 2021
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF JOINING STEEL HAVING DIFFERENT RESISTIVITIES
- Publication number 20210069821
- Publication date Mar 11, 2021
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF RESISTANCE WELDING ZINC COATED STEEL
- Publication number 20200406388
- Publication date Dec 31, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METALLIC COMPONENT AND METHOD OF REDUCING LIQUID METAL EMBRITTLEMEN...
- Publication number 20200338856
- Publication date Oct 29, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Charles Enloe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELD GUN CAP DRESSER CUTTER
- Publication number 20200238430
- Publication date Jul 30, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Michael J. Karagoulis
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MECHANICAL PERFORMANCE OF AL-STEEL WELD JOINTS
- Publication number 20200139480
- Publication date May 7, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MANUFACTURING METHOD FOR WELDING A MULTI-SHEET ASSEMBLY
- Publication number 20200055139
- Publication date Feb 20, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
PRETREATMENT OF WELD FLANGES TO MITIGATE LIQUID METAL EMBRITTLEMENT...
- Publication number 20200016679
- Publication date Jan 16, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Resistance Spot Welding Workpiece Stack-Ups Having Steel Workpieces...
- Publication number 20190314915
- Publication date Oct 17, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Resistance Spot Brazing Workpiece Stack-Ups Having One Or More Thin...
- Publication number 20190314914
- Publication date Oct 17, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Pei-chung Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING ELECTRODE DESIGN
- Publication number 20190076955
- Publication date Mar 14, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Hui-ping Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELECTRODE FOR RESISTANCE SPOT WELDING OF DISSIMILAR MATERIALS
- Publication number 20180272457
- Publication date Sep 27, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David Yang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MULTI-STEP DIRECT WELDING OF AN ALUMINUM-BASED WORKPIECE TO A STEEL...
- Publication number 20180257166
- Publication date Sep 13, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELD SCHEDULE FOR RESISTANCE SPOT WELDING OF ALUMINUM ALLOY WORKPIECES
- Publication number 20180229328
- Publication date Aug 16, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- DAVID R. SIGLER
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
PROGRAMMABLE POLARITY MODULE FOR DC RESISTANCE SPOT WELDING
- Publication number 20180071856
- Publication date Mar 15, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- MICHAEL J. KARAGOULIS
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ALTERNATELY DIRECT RESISTANCE SPOT WELDING OF AL-TO-AL, AL-TO-STEEL...
- Publication number 20170304928
- Publication date Oct 26, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
RESISTANCE SPOT WELDING OF ALUMINUM-TO-ALUMINUM, ALUMINUM-TO-STEEL,...
- Publication number 20170297138
- Publication date Oct 19, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MATING ELECTRODES FOR RESISTANCE SPOT WELDING OF ALUMINUM WORKPIECE...
- Publication number 20170252853
- Publication date Sep 7, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Hui-Ping Wang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING ELECTRODE CUTTING TOOL AND METHOD OF USING THE SAME
- Publication number 20170225262
- Publication date Aug 10, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING ELECTRODE CUTTING TOOL AND METHOD OF USING THE SAME
- Publication number 20170225263
- Publication date Aug 10, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SYSTEMS, PROCESSES AND APPARATUSES FOR AUTOMATED HANDLING OF NON-FE...
- Publication number 20170158441
- Publication date Jun 8, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Chandra S. Namuduri
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
MULTI-STAGE RESISTANCE SPOT WELDING METHOD FOR WORKPIECE STACK-UP H...
- Publication number 20170106466
- Publication date Apr 20, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
POWER PULSE METHOD FOR CONTROLLING RESISTANCE WELD NUGGET GROWTH AN...
- Publication number 20170072502
- Publication date Mar 16, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- MICHAEL J. KARAGOULIS
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF RESISTANCE SPOT WELDING ALUMINUM ALLOY WORKPIECES
- Publication number 20160354857
- Publication date Dec 8, 2016
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- DAVID R. SIGLER
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
RESISTIVE WELDING ELECTRODE AND METHOD FOR SPOT WELDING STEEL AND A...
- Publication number 20160279732
- Publication date Sep 29, 2016
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELECTRODE FOR RESISTANCE SPOT WELDING OF DISSIMILAR METALS
- Publication number 20150231729
- Publication date Aug 20, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David S. Yang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELD ELECTRODE FOR ATTRACTIVE WELD APPEARANCE
- Publication number 20150083694
- Publication date Mar 26, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- DAVID R. SIGLER
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Michael J. Karagoulis

Person

Patents Grantslast 30 patents

Steel workpiece comprising an alloy substrate and a coating, and a...

Method of joining steel work-pieces having different gauge ratios

Pretreatment of weld flanges to mitigate liquid metal embrittlement...

Mechanical performance of al-steel weld joints

High temperature coatings to mitigate weld cracking in resistance w...

Metallic component and method of reducing liquid metal embrittlemen...

Method of joining steel having different resistivities

Resistance spot brazing workpiece stack-ups having one or more thin...

Weld gun cap dresser cutter

Electrode for resistance spot welding of dissimilar materials

Weld schedule for resistance spot welding of aluminum alloy workpieces

Resistance welding electrode

Multi-step direct welding of an aluminum-based workpiece to a steel...

Programmable polarity module for DC resistance spot welding

Mating electrodes for resistance spot welding of aluminum workpiece...

Resistance spot welding of aluminum-to-aluminum, aluminum-to-steel,...

Alternately direct resistance spot welding of Al-to-Al, al-to-steel...

Welding electrode cutting tool and method of using the same

Welding electrode cutting tool and method of using the same

Weld face design for spot welding

Weld electrode for attractive weld appearance

Power pulse method for controlling resistance weld nugget growth an...

Resistive welding electrode and method for spot welding steel and a...

Multi-stage resistance spot welding method for workpiece stack-up h...

Resistance spot welding steel and aluminum workpieces using electro...

Electrode for resistance spot welding of dissimilar metals

Multi-step direct welding of an aluminum-based workpiece to a steel...

Weld schedule for resistance spot welding of aluminum alloy workpieces

Electrode for spot welding

Systems, processes and apparatuses for automated handling of non-fe...

Patents Applicationslast 30 patents

STEEL WORKPIECE COMPRISING AN ALLOY SUBSTRATE AND A COATING, AND A...

HIGH TEMPERATURE COATINGS TO MITIGATE WELD CRACKING IN RESISTANCE W...

PRETREATMENT OF WELD FLANGES TO MITIGATE LIQUID METAL EMBRITTLEMENT...

METHOD OF JOINING STEEL WORK-PIECES HAVING DIFFERENT GAUGE RATIOS

METHOD OF JOINING STEEL HAVING DIFFERENT RESISTIVITIES

METHOD OF RESISTANCE WELDING ZINC COATED STEEL

METALLIC COMPONENT AND METHOD OF REDUCING LIQUID METAL EMBRITTLEMEN...

WELD GUN CAP DRESSER CUTTER

MECHANICAL PERFORMANCE OF AL-STEEL WELD JOINTS

MANUFACTURING METHOD FOR WELDING A MULTI-SHEET ASSEMBLY

PRETREATMENT OF WELD FLANGES TO MITIGATE LIQUID METAL EMBRITTLEMENT...

Resistance Spot Welding Workpiece Stack-Ups Having Steel Workpieces...

Resistance Spot Brazing Workpiece Stack-Ups Having One Or More Thin...

WELDING ELECTRODE DESIGN

ELECTRODE FOR RESISTANCE SPOT WELDING OF DISSIMILAR MATERIALS

MULTI-STEP DIRECT WELDING OF AN ALUMINUM-BASED WORKPIECE TO A STEEL...

WELD SCHEDULE FOR RESISTANCE SPOT WELDING OF ALUMINUM ALLOY WORKPIECES

PROGRAMMABLE POLARITY MODULE FOR DC RESISTANCE SPOT WELDING

ALTERNATELY DIRECT RESISTANCE SPOT WELDING OF AL-TO-AL, AL-TO-STEEL...

RESISTANCE SPOT WELDING OF ALUMINUM-TO-ALUMINUM, ALUMINUM-TO-STEEL,...

MATING ELECTRODES FOR RESISTANCE SPOT WELDING OF ALUMINUM WORKPIECE...

WELDING ELECTRODE CUTTING TOOL AND METHOD OF USING THE SAME

WELDING ELECTRODE CUTTING TOOL AND METHOD OF USING THE SAME

SYSTEMS, PROCESSES AND APPARATUSES FOR AUTOMATED HANDLING OF NON-FE...

MULTI-STAGE RESISTANCE SPOT WELDING METHOD FOR WORKPIECE STACK-UP H...

POWER PULSE METHOD FOR CONTROLLING RESISTANCE WELD NUGGET GROWTH AN...

METHOD OF RESISTANCE SPOT WELDING ALUMINUM ALLOY WORKPIECES

RESISTIVE WELDING ELECTRODE AND METHOD FOR SPOT WELDING STEEL AND A...

ELECTRODE FOR RESISTANCE SPOT WELDING OF DISSIMILAR METALS

WELD ELECTRODE FOR ATTRACTIVE WELD APPEARANCE