Invention Grant
- Patent Title: Cold-metal-transfer welding process and welding installation
- Patent Title (中): 冷轧金属转移焊接工艺及焊接安装
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Application No.: US11920516Application Date: 2006-05-18
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Publication No.: US09035220B2Publication Date: 2015-05-19
- Inventor: Manfred Schörghuber
- Applicant: Manfred Schörghuber
- Applicant Address: AT Pettenbach
- Assignee: Fronius International GmbH
- Current Assignee: Fronius International GmbH
- Current Assignee Address: AT Pettenbach
- Agency: Collard & Roe, P.C.
- Priority: ATA883/2005 20050524
- International Application: PCT/AT2006/000205 WO 20060518
- International Announcement: WO2006/125234 WO 20061130
- Main IPC: B23K9/00
- IPC: B23K9/00 ; B23K9/12

Abstract:
A cold metal transfer welding process is defined by the cyclic alternation of an arc phase and a short-circuit phase. During the arc phase, a welding rod is displaced towards the workpiece until it makes contact with the workpiece and during the short-circuit phase the welding rod displacement is reversed and the welding rod is then moved away from the workpiece. The welding current and/or the welding voltage are controlled during the arc phase in such a way that the welding rod melts, forming a droplet and that during the short-circuit phase a breaking of the short-circuit is suppressed using the welding current. A welding installation for carrying out the welding method achieves optimal welding results using the smallest possible number of settings by setting a displacement frequency of the welding rod as a welding parameter using a control organ.
Public/Granted literature
- US20090026188A1 Cold-Metal-Transfer Welding Process and Welding Installation Public/Granted day:2009-01-29
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