发明申请
- 专利标题: Cold-Metal-Transfer Welding Process and Welding Installation
- 专利标题(中): 冷金属转移焊接工艺和焊接安装
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申请号: US11920516申请日: 2006-05-18
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公开(公告)号: US20090026188A1公开(公告)日: 2009-01-29
- 发明人: Manfred Schorghuber
- 申请人: Manfred Schorghuber
- 申请人地址: AT Pettenbach
- 专利权人: FRONIUS INTERNATIONAL GMBH
- 当前专利权人: FRONIUS INTERNATIONAL GMBH
- 当前专利权人地址: AT Pettenbach
- 优先权: ATA883/2005 20050524
- 国际申请: PCT/AT2006/000205 WO 20060518
- 主分类号: B23K9/00
- IPC分类号: B23K9/00
摘要:
The invention relates to a cold metal transfer welding process, in which the welding process is defined by the cyclic alternation of an arc phase and a short-circuit phase. According to the invention, during an arc phase, a welding rod is displaced towards the workpiece until it makes contact with the latter 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 by means of the welding current. The invention also relates to a welding installation for carrying out the welding method. The aim of the invention is to achieve optimal welding results using the smallest possible number of settings. To achieve this, a displacement frequency of the welding rod is set as a welding parameter by means of a control organ, the frequency being used to define the number of arc phases and short-circuit phases per second, and at least one additional welding parameter is set. A control unit determines, sets and controls all other welding parameters that are required to achieve the predefined displacement frequency.
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