Sigma

IWATA BOLT Informational Magazine.

Sigma

IWATA BOLT Informational Magazine.

  • Dec 1982 Issue

    Dec 1982 Issue

    [Sigma 35]

    • 〈1982 Design Engineering Show〉
    • 1.Unusual enthusiasm for revitalizing the US economy
    • 2.☆Fasteners are uniquely developed in various ways.
    • 〈1982 Electronics Show〉
    • 3.Largest demonstration ever
    • 4.Completion of new Fukuoka branch building and further strengthening of supply system
    • 〈Overseas news〉
    • 5.1982 Assembly / Engineering Show
      “Improve American Productivity with Assembly Technology”
    • 6.Bolt breakage is harder than the material

  • Jan 1982 Issue

    Jan 1982 Issue

    [Sigma 34]

    • 〈SOFI Iwata bolt optimum fastening system〉
    • 1.SOFI exhibition room where you can see it with your eyes, try it with your hands, and confirm it with a video
    • 2.The Saitama Factory: From designing, manufacturing, heat treatment, plating, and to inspection.
    • 3.Online System began between Saitama factory and Head office
    • 4.☆Using floppy desk or OCR to improve efficiency of paperwork
    • 5.Torque / coupling force tester introduced as part of SOFI
    • 6.☆Torque / coupling force tester introduced as part of SOFI
    • 〈Product description〉
    • 7.Guidance for the function and selection of clinch fasteners
    • 8.☆Twin Tight and Tricorn
    • 〈Overseas screw industry〉
    • 9.US : Import restriction is an urgent matter for US national security
    • 10.West Germany: Strengthen the standard product field for industrial balance in the country.
    • 11.Sweden: The screw industry lost its stability
    • 12.☆ Recalling 6.4 million passenger cars with two defective bolts

  • Aug 1981 Issue

    Aug 1981 Issue

    [Sigma 33]

    • 〈1981 Design Engineering Show〉
    • 1. Iwata Bolt exibited Spectial Parts
    • 〈Review〉
    • 2.The weak point of American-style management is that it is overwhelmed by short-term results
    • 〈Technical data〉
    • 3.Tightening of plastic products with tapping screws
    • 〈Overseas development〉
    • 4.Selecting the tightening method with a switch
    • 5. 100% inspection of fastener parts with laser
    • 6.Anti-Loosening screw Taper Tight for ultra-thin plates
    • 〈Company news〉
    • 7.☆Training Camp for executives held at the foot of Mt. Fuji ☆ QC and SOFI Conference
    • ☆Opened satellite offices in Kawagoe and Kisarazu ☆ Facsimile installed at head office

  • Jan 1981 Issue

    Jan 1981 Issue

    [Sigma 32]

    • 〈1980 Electronics Show〉
    • 1.Iwata Bolt exhibits SOFI products
    • 2.SOFI Iwata bolt optimum fastening system
    • 〈Overseas Feature〉
    • 3.Revolutional joining method instead of riveting: Weld bonding
    • 4.High speed installation of adhesive on the nut
    • 5.Double thread self-drilling screw
    • 6. Breathing bolt showing defects
    • 7.Anti-loosening effect with spiral lock
    • 8.New system AUTO: Fastening bolts on the back of the car
    • 9.Problems with the transition to metric screws in the US aircraft industry
    • 10.How will the US screw market change?

  • Sep 1980 Issue

    Sep 1980 Issue

    [Sigma 31]

    • 〈Special feature〉
    • 1.Finite Element Analysis of Threaded Connections
      … JL Brettle, RD Cook, Translated by: Masataka Iwata
    • 〈Explanation〉
    • 2.Fastener specialist appears in US screw distribution
    • 〈World spot information〉
    • 3.☆US version screw structure improvement: The government launched invenstigation.
    • 4.☆Non-genuine aircraft screws
    • 5.☆US imposes tariffs on India-made imported screws
    • 6.☆GKN leaves screw manufacturing business
    • 7.☆Screw head engraving issue