Patents Assigned to AB Metalform
  • Method of rolling metal blanks
    Patent number: 4007617
    Abstract: Rod or wire shaped material is produced by substantial reduction of the cross-sectional area of a metal blank in each of two types of alternating, sequentially arranged rolling passes, each of one type of pass being effected by flat-rolling the blank in at least one pair of rolls having substantially smooth roll barrels, and each of the other type of pass being effected by upset-rolling the blank in at least one pair of rolls having grooves which exhibit a rounded groove bottom.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: February 15, 1977
    Assignee: AB Metalform
    Inventors: Curt Gunnar Falk, Per-Olof Strandell, Per Erik Albrecht, Goran Anders Wallner
  • Apparatus for the plastic working of material
    Patent number: 3938362
    Abstract: There is provided an apparatus for plastic working of material, comprising a lower portion carrying a lower tool and upstanding bars, an upper portion in the form of a carriage mounted on the bars for gliding movement along said bars and carrying an upper tool intended for co-action with the lower tool, cylinder and ram means for displacing the carriage along the bars, and expander sleeves for fixing the carriage to the bars in an optional position of displacement.
    Type: Grant
    Filed: February 12, 1974
    Date of Patent: February 17, 1976
    Assignee: AB Metalform
    Inventors: Curt Gunnar Falk, Per-Olof Strandell, Karl Lennart Sundberg