发明申请
US20090224024A1 Friction welding methods and friction welding apparatuses 审中-公开
摩擦焊接方法和摩擦焊接装置

Friction welding methods and friction welding apparatuses
摘要:
One aspect of the present invention can include a friction welding method having a friction step for generating a friction heat by pressing the pair of works while relatively rotating the pair of works, and an upset step started before generating an approach margin at the pair of works at the friction step, restricting rotation of the pair of works relative to each other and applying an upset pressure between the pair of works.
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