Static double-shaft-shoulder stirring friction head used for stirring friction welding machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU UNIV OF SCI & TECH
- Publication Date
- 2013-09-04
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of technical material processing and welding, and in particular relates to the improvement of a water double-shaft shoulder stirring friction head. Background technique
[0002] Double-shoulder friction stir welding is a new type of friction stir welding technology. During the welding process, the workpiece is clamped by the upper and lower shoulders. The lower shoulder replaces the backing plate device of conventional friction stir welding, so it does not need welding equipment to provide a lot At the same time, this friction stir head structure makes the upsetting force of the upper and lower shoulders equal in opposite directions, and the resultant force on the entire workpiece in the direction perpendicular to the plate is zero, which is very suitable for the welding of hollow components. Therefore, this method It has broad application prospects in shipbuilding, aerospace, rail transit and other fields. ...