David R. Sigler

Person

Shelby Township, MI, US

People

Patents Grantslast 30 patents

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
Tailored panel assembly and method of manufacturing the same
- Patent number 11,132,986
- Issue date Sep 28, 2021
- GM Global Technology Operations LLC
- Anil K. Sachdev
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Aluminum alloy to steel welding process
- Patent number 11,123,816
- Issue date Sep 21, 2021
- 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 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
Resistance spot welding workpiece stack-ups having a steel workpiec...
- Patent number 11,065,710
- Issue date Jul 20, 2021
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High aspect ratio weld face design for dissimilar metal welding
- Patent number 11,065,711
- Issue date Jul 20, 2021
- GM Global Technology Operations LLC
- Amberlee S. Haselhuhn
- 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
Improving mechanical performance of Al-steel weld joints by limitin...
- Patent number 10,857,618
- Issue date Dec 8, 2020
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Control of intermetallic compound growth in aluminum to steel resis...
- Patent number 10,857,619
- Issue date Dec 8, 2020
- GM Global Technology Operations LLC
- Tyson W. Brown
- 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
Welding electrode for use in a resistance spot welding workpiece st...
- Patent number 10,751,830
- Issue date Aug 25, 2020
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrode weld face design
- Patent number 10,730,133
- Issue date Aug 4, 2020
- GM Global Technology Operations LLC
- Amberlee S. Haselhuhn
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Resistance spot welding steel and aluminum workpieces with electrod...
- Patent number 10,682,723
- 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
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
Joining of light metal alloy workpieces to steel workpieces using r...
- Patent number 10,675,702
- Issue date Jun 9, 2020
- GM Global Technology Operations LLC
- Blair E. Carlson
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Al-steel weld joint
- Patent number 10,675,703
- Issue date Jun 9, 2020
- GM Global Technology Operations LLC
- David 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
Method of resistance spot welding aluminum to steel
- Patent number 10,625,367
- Issue date Apr 21, 2020
- GM Global Technology Operations LLC
- David 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
Resistance welding electrode and method of resistance welding
- Patent number 10,500,679
- Issue date Dec 10, 2019
- GM Global Technology Operations LLC
- Hui-Ping Wang
- 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
External heat assisted welding of dissimilar metal workpieces
- Patent number 10,421,148
- Issue date Sep 24, 2019
- GM Global Technology Operations LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Conical shaped current flow to facilitate dissimilar metal spot wel...
- Patent number 10,376,984
- Issue date Aug 13, 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

Patents Applicationslast 30 patents

Information Patent Application
HIGH ASPECT RATIO WELD FACE DESIGN FOR DISSIMILAR METAL WELDING
- Publication number 20200139481
- Publication date May 7, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Amberlee S. Haselhuhn
- 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
QUALITY WELDING OF SIMILAR AND DISSIMILAR METAL WELDS WITH SPACE BE...
- Publication number 20200114459
- Publication date Apr 16, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Amberlee S. Haselhuhn
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
OVERLAPPING SPOT WELDS FOR IMPROVED MECHANICAL PERFORMANCE AND WELD...
- Publication number 20190358733
- Publication date Nov 28, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
RESISTANCE SPOT WELDING WORKPIECE STACK-UPS HAVING A STEEL WORKPIEC...
- Publication number 20190283168
- Publication date Sep 19, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
IMPROVING MECHANICAL PERFORMANCE OF AL-STEEL WELD JOINTS BY LIMITIN...
- Publication number 20190262930
- Publication date Aug 29, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELECTRODE WELD FACE DESIGN
- Publication number 20190134735
- Publication date May 9, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Amberlee S. Haselhuhn
- B32 - LAYERED PRODUCTS
Information Patent Application
TAILORED PANEL ASSEMBLY AND METHOD OF MANUFACTURING THE SAME
- Publication number 20190115004
- Publication date Apr 18, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Anil K. Sachdev
- B60 - VEHICLES IN GENERAL
Information Patent Application
ALUMINUM ALLOY TO STEEL WELDING PROCESS
- Publication number 20190105728
- Publication date Apr 11, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- 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
MULTISTEP ELECTRODE WELD FACE GEOMETRY FOR WELD BONDING ALUMINUM TO...
- Publication number 20170361392
- Publication date Dec 21, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- 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
EXTERNAL HEAT ASSISTED WELDING OF DISSIMILAR METAL WORKPIECES
- Publication number 20170304925
- 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 ALUMINUM TO STEEL USING PREPLACED METALLURG...
- Publication number 20170297134
- 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
CONTROL OF INTERMETALLIC COMPOUND GROWTH IN ALUMINUM TO STEEL RESIS...
- Publication number 20170297136
- Publication date Oct 19, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Tyson W. Brown
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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
METHOD OF JOINING ALUMINUM AND STEEL WORKPIECES
- Publication number 20170297137
- Publication date Oct 19, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Thomas A. Perry
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
RESISTANCE SPOT WELDING STEEL AND ALUMINUM WORKPIECES WITH ELECTROD...
- Publication number 20170297135
- 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
METHOD OF RESISTANCE SPOT WELDING ALUMINUM TO STEEL
- Publication number 20170291246
- Publication date Oct 12, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
AL-STEEL WELD JOINT
- Publication number 20170291247
- Publication date Oct 12, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING ELECTRODE FOR USE IN A RESISTANCE SPOT WELDING WORKPIECE ST...
- Publication number 20170291248
- Publication date Oct 12, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David R. Sigler
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING ELECTRODE DESIGN FOR EXPELLING ORGANIC MATERIAL IN WELD BON...
- Publication number 20170282303
- Publication date Oct 5, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Hui-Ping Wang
- 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
JOINING OF LIGHT METAL ALLOY WORKPIECES TO STEEL WORKPIECES USING R...
- Publication number 20170232548
- Publication date Aug 17, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Blair E. Carlson
- 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

David R. Sigler

Person

Patents Grantslast 30 patents

Mechanical performance of al-steel weld joints

Tailored panel assembly and method of manufacturing the same

Aluminum alloy to steel welding process

Electrode for resistance spot welding of dissimilar materials

Resistance spot welding workpiece stack-ups having a steel workpiec...

High aspect ratio weld face design for dissimilar metal welding

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

Improving mechanical performance of Al-steel weld joints by limitin...

Control of intermetallic compound growth in aluminum to steel resis...

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

Welding electrode for use in a resistance spot welding workpiece st...

Electrode weld face design

Resistance spot welding steel and aluminum workpieces with electrod...

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

Joining of light metal alloy workpieces to steel workpieces using r...

Al-steel weld joint

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

Method of resistance spot welding aluminum to steel

Welding electrode cutting tool and method of using the same

Resistance welding electrode and method of resistance welding

Welding electrode cutting tool and method of using the same

External heat assisted welding of dissimilar metal workpieces

Conical shaped current flow to facilitate dissimilar metal spot wel...

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...

Patents Applicationslast 30 patents

HIGH ASPECT RATIO WELD FACE DESIGN FOR DISSIMILAR METAL WELDING

MECHANICAL PERFORMANCE OF AL-STEEL WELD JOINTS

QUALITY WELDING OF SIMILAR AND DISSIMILAR METAL WELDS WITH SPACE BE...

OVERLAPPING SPOT WELDS FOR IMPROVED MECHANICAL PERFORMANCE AND WELD...

RESISTANCE SPOT WELDING WORKPIECE STACK-UPS HAVING A STEEL WORKPIEC...

IMPROVING MECHANICAL PERFORMANCE OF AL-STEEL WELD JOINTS BY LIMITIN...

ELECTRODE WELD FACE DESIGN

TAILORED PANEL ASSEMBLY AND METHOD OF MANUFACTURING THE SAME

ALUMINUM ALLOY TO STEEL WELDING PROCESS

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

MULTISTEP ELECTRODE WELD FACE GEOMETRY FOR WELD BONDING ALUMINUM TO...

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

EXTERNAL HEAT ASSISTED WELDING OF DISSIMILAR METAL WORKPIECES

RESISTANCE SPOT WELDING ALUMINUM TO STEEL USING PREPLACED METALLURG...

CONTROL OF INTERMETALLIC COMPOUND GROWTH IN ALUMINUM TO STEEL RESIS...

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

METHOD OF JOINING ALUMINUM AND STEEL WORKPIECES

RESISTANCE SPOT WELDING STEEL AND ALUMINUM WORKPIECES WITH ELECTROD...

METHOD OF RESISTANCE SPOT WELDING ALUMINUM TO STEEL

AL-STEEL WELD JOINT

WELDING ELECTRODE FOR USE IN A RESISTANCE SPOT WELDING WORKPIECE ST...

WELDING ELECTRODE DESIGN FOR EXPELLING ORGANIC MATERIAL IN WELD BON...

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

JOINING OF LIGHT METAL ALLOY WORKPIECES TO STEEL WORKPIECES USING R...

WELDING ELECTRODE CUTTING TOOL AND METHOD OF USING THE SAME

WELDING ELECTRODE CUTTING TOOL AND METHOD OF USING THE SAME