Friction plug welding methods and systems,申请号US20080014737-传众专利搜索

Friction plug welding methods and systems

申请公布号：US7726541(B2)

申请号：US20080014737

申请日期：2008.01.15

申请公布日期：2010.06.01

申请人：

EMBRAER-EMPRESA BRASILEIRA DE AERONAUTICA S.A.

发明人：MACIEL MARCIO FERNANDES

分类号：B23K20/12

主分类号：B23K20/12

摘要：Friction plug welding methods and systems plug a hole extending through a component part from front and back faces thereof. A sacrificial plate having an opening therethrough may be positioned against the back face of the component part with assistance from a restraint part (which is also preferably provided with a space of sufficient dept to receive a terminal end of the male plug) so that the opening is coaxially aligned with the hole to be plugged. Upon advancing a male plug of a plug rod into the hole under friction plug welding conditions, a friction weld region will therefore be formed between the male plug and defining surfaces of both the hole extending through the component part and the opening extending through the sacrificial plate. The plug rod may include an annular shoulder flange which defines a plane parallel to the front face of the component part so that flash flow from the friction welding will be displaced laterally of the hole. The male plug may be frustroconically shaped. An annular arcuate surface may also be provided which joins the male plug to the shoulder flange.