1results about How to "High quality preparation" patented technology

A kind of integral blade linear friction welding joint current auxiliary local performance regulation method, steps are as follows: preparation of shaper equipment;Welding seam necking transition section is machined;Integral blade is sent into vacuum environment device;Welding seam installs electrode, electrode is connected into direct current pulse power;Cooling device is connected;Vacuum environment device, cooling device and direct current pulse power are started in turn;Temperature reaches value and keeps warm;Adjust pulse current value to carry out secondary or more local heat treatment, close direct current pulse power;Cool to normal temperature;Restore normal pressure environment, cooling device is closed, electrode is removed;Repeat operation, complete the rest of welding seam local performance regulation.The present application utilizes the joule heating effect and electrocaloric effect generated by current through metal to realize local performance regulation of welded joint, combined with necking transition section to improve current density, realize accurate regulation of microstructure and mechanical properties of welded joint, realize high-performance, high-quality manufacturing of titanium alloy linear friction welding fan integral blade.