Welding or additive manufacturing dual wire drive system

US11426813B2 · kind B2 · utility

Assignee

• LINCOLN GLOBAL, INC. · US

Inventors

• Bradford W. Petot · South Euclid, US
• Elliott R. Ash · Bay Village, US
• Kent Johns · Hudson, US
• Vincent D. Casella · Wickliffe, US
• Steven R. Peters · Huntsburg, US
• Alexander C. Mehlman · Lakewood, US
• Matthew A. Weeks · Walloon, AU

Key dates

• Filing date: Jul 31, 2019
• Grant date: Aug 30, 2022
• Expiry date: Jan 17, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K9/325
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A welding or additive manufacturing wire drive system includes a first spindle for a first welding wire spool, a second spindle for a second welding wire spool, a first drive roll, and a second drive roll. One or both of the drive rolls has a circumferential groove. A first welding wire and a second welding wire are located between the first drive roll and the second drive roll in the circumferential groove. The first welding wire contacts the second welding wire between the first drive roll and the second drive roll. The first welding wire further contacts a first sidewall portion of the circumferential groove. The second welding wire further contacts a second sidewall portion of the circumferential groove. Both of the first welding wire and the second welding wire are radially offset from a central portion of the circumferential groove.