公开(公告)号：WO2016007497A1

公开(公告)日：2016-01-14

申请号：PCT/US2015/039357

申请日：2015-07-07

Applicant: KUKA ROBOTICS CORPORATION

Inventor： NACEY, Timothy, James ,  DUPON, Mitchel ,  MAXIMIUK, Mike

IPC: B23K9/095 ,  B23K9/16 ,  B23K9/167 ,  B23K10/00 ,  B23K10/02 ,  B23K9/32

CPC classification number: B23K9/325 ,  B23K9/00 ,  B23K9/0953 ,  B23K9/0956 ,  B23K9/126 ,  B23K9/164 ,  B23K9/167 ,  B23K10/00 ,  B23K10/02 ,  B23K31/125

Abstract: A gas delivery system (10) delivers a shielding gas from a source (16) through one or more hoses to a torch (12) having a nozzle (18) during welding of a workpiece (25). A shielding gas controller (56) includes an inlet (62), an outlet (64), and at least one valve (60) between the inlet (62) and the outlet (64). The valve (60) operates in response to a predetermined minimum shielding gas flow set point. The shielding gas controller (56) operates the valve (60) before or after a weld (32) to change the flow of the shielding gas according to the predetermined minimum shielding gas flow set point. A method of welding includes predetermining a flow rate of a shielding gas, predetermining another flow rate of the gas, dispensing the gas at the first flow rate proximate a first weld pool (26) during welding, and dispensing the shielding gas at the second flow rate, different from the first flow rate, during welding of another weld (32) on the workpiece (25).

Abstract translation: 在焊接工件（25）期间，气体输送系统（10）将来自源（16）的保护气体从一个或多个软管输送到具有喷嘴（18）的喷枪（12）。 保护气体控制器（56）包括入口（62），出口（64）和在入口（62）和出口（64）之间的至少一个阀（60）。 阀（60）响应于预定的最小保护气体流量设定点而操作。 保护气体控制器（56）在焊接（32）之前或之后操作阀（60），以根据预定的最小保护气体流量设定点改变保护气体的流量。 焊接方法包括预先确定保护气体的流量，预先确定气体的另一流量，在焊接期间以靠近第一焊池（26）的第一流速分配气体，以及在第二流动下分配保护气体 在工件（25）上的另一焊缝（32）的焊接期间，与第一流量不同的速率。