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2. Vibration welding of thermoplastics - Wikipedia

   en.wikipedia.org/wiki/Vibration_Welding_of...

   Vibration welding has numerous advantages over other conventional plastic welding processes. Since the heat is created at an interface, the molten polymers are not exposed to open air, preventing oxidation and contamination of the weld during the process. No filler material is required, and when welding components of the same material the joint ...

3. Swanson Industries - Wikipedia

   en.wikipedia.org/wiki/Swanson_Industries

   Founded in 1964 as Swanson Plating Company, and later known as CWS Company, it was not until under new ownership in 1999 that the company was renamed to Swanson Industries, Inc. The new ownership felt the name change was necessary after merging with companies Morgantown Machine & Hydraulics, Laser Processing Company and Morgantown Technical ...

4. Friction welding - Wikipedia

   en.wikipedia.org/wiki/Friction_welding

   Some applications and patents connected with friction welding dates back to the turn of the 20th century, [3] and rotary friction welding is the oldest of the methods. [4] W. Richter patented the method of linear friction welding (LFW) process in 1924 [ 5 ] in England and 1929 [ 5 ] in the Weimar Republic .

5. List of welding processes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_processes

   The oldest welding process in the world. Oxides must be removed by flux or flames. Damascus steel: Friction welding: 42: FRW Thin heat affected zone, oxides disrupted by friction, needs sufficient pressure Aerospace industry, railway, land transport Friction stir welding: 43: FSW A rotating non-consumable tool is traversed along the joint line

6. Friction stir spot welding - Wikipedia

   en.wikipedia.org/wiki/Friction_stir_spot_welding

   In friction stir spot welding, individual spot welds are created by pressing a rotating tool with high force onto the top surface of two sheets that overlap each other in the lap joint. The frictional heat and the high pressure plastify the workpiece material, so that the tip of the pin plunges into the joint area between the two sheets and ...

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