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  • Applications
    have been completed. The base metal must be weldable. Straight low-carbon steels or austenitic (300 Series) stainless steels, except free-machining grades, produce good weld results with normal techniques. Other steel alloys can be welded, but heat treatment may be required to develop full weld
  • Causing a stir in welding
    Friction stir welding joins previously unweldable materials. As the tool moves along, frictional heat plasticizes material from the front of the rotating pin to the back. The material consolidates and cools to form a solidstate weld. The lower cabin assembly of the Eclipse 500 jet was assembled
  • AFS Castings of the Year
    fabrication. A brass permanent-mold chill casting for a steering linkage from , Greensburg, Pa., was redesigned from a weldment composed of 10 prefabricated pieces, 19 weld joints, and four bushings. The resulting 9.82-lb component was 10% lighter than the weldment and eliminated some machining
  • Tough Coatings
    case seizing, results when two solid surfaces slide over one another under pressure. Surface projections, or asperities, plastically deform and eventually weld together under the high localized pressure. As sliding continues, these bonds

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