Search results
Results from the WOW.Com Content Network
Close-up view of a friction stir weld tack tool. The bulkhead and nosecone of the Orion spacecraft are joined using friction stir welding. Joint designs. Friction stir welding (FSW) is a solid-state joining process that uses a non-consumable tool to join two facing workpieces without melting the workpiece material.
Adam Koppy in front of a FSW machine at NASA Michoud Assembly Facility near New Orleans. Adam H. Koppy (April 13, 1973 – June 26, 2013) was an American mechanical engineer. He was internationally recognised as one of the leading friction stir welding machine designers and builders. He was one of three inventors of a patented adapter for use ...
Friction stir welding. Friction stir welding (FSW) is a solid-state joining process that uses a non-consumable tool to join two facing workpieces without melting the workpiece material. Heat is generated by friction between the rotating tool and the workpiece material, which leads to a softened region near the FSW tool.
These tools are generally designed to enable the friction-stir welding, both self-reacting and conventional, circumferential and linear, of the 2219 aluminium-copper alloy of much of the core stage. [15] [12] Additional tools include the floor assembly jig (FAJ) [16] and Intertank Final Assembly Tool (IFAT). [17]
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 ...
This alloy provided a significant reduction in tank weight (about 7,000 pounds or 3,175 kg) over the LWT. Manufacture also included friction stir welding technology. Although all ETs produced after the introduction of the SLWT were of this configuration, one LWT remained in inventory to be used if requested until the end of the shuttle era.
Friction stir processing (FSP) is a method of changing the properties of a metal through intense, localized plastic deformation. [ 2 ] : 7 [ 3 ] : 1117 This deformation is produced by forcibly inserting a non-consumable tool into the workpiece, and revolving the tool in a stirring motion as it is pushed laterally through the workpiece.
SpaceX uses an all-friction stir welded tank, the highest strength and most reliable welding technique available. [3] The Falcon 9 v1.0 first stage used a pyrophoric mixture of triethylaluminum-triethylborane (TEA-TEB) as a first-stage ignitor. [7]