Yamamoto Seisakusho, Inc.
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Thickness 10.00mm
Length 100.00mm
Material SS400P
Application Distribution board switch
Features This product is fabricated using a progressive die and has a protrusion. The edge width between the exterior form and the rectangular holes is narrow; and stepped punching is performed to prevent necking.
Thickness 6.50mm
Length 110.00mm
Material SAPH440
Application Automobile oil pump cover
Features
  • Conventional fabrication: Casting + machining + deburring
  • New process: FB + barrel finishing
  • Shape deformation easily occurs because the distances from the outer circumference to the half-piercings are short.
  • Thickness 2.40mm
    Length 26.40mm
    Material S55C
    Application Automobile seat belt part
    Features The pressing die for this part has movable punches in multiple rows to accommodate large production lots. A boss pitch precision of ±0.03 mm is ensured.
    Thickness 5.50mm
    Length 70.00mm
    Material SPHC
    Application Bicycle disc pad part
    Features The 20 mm diameter portion is coined to be concave.
    Thickness 4.00mm
    Length 80.00mm
    Material SPHC
    Application Medical equipment
    Features
  • Conventional: Machining
  • New process: FB + deburring
  • Thickness 4.00mm
    Length 60.00mm
    Material S45C
    Application Two-wheeled vehicle engine part
    Features
  • Although the edge width is narrow, necking is suppressed and a 100% sheared surface is provided.
  • A hole circularity within 10 μm was realized.
  • Thickness 4.00mm
    Length φ37.10mm
    Material SP
    Application Automobile shock absorber part
    Features A perpendicular sheared surface is obtained using forming/punching technology.
    Thickness 3.20mm
    Length φ29.00mm
    Material SP
    Application Automobile shock absorber part
    Features A perpendicular sheared surface is obtained using forming/punching technology.
    Thickness 3.00mm
    Length 30.00mm
    Material SPHC
    Application Lock part
    Features A 100% sheared surface is provided even when stamping a coined portion.
    Thickness 4.50mm
    Length φ50.00mm
    Material SS41
    Application Pole guide
    Features
  • The six holes around the outer circumference conventionally were made by machining.
  • This is finished in one stroke using FB.
  • Thickness 4.00mm
    Length 27.00mm
    Material SPHC440
    Application Automotive Tensioner Parts
    Features
  • Conventional: General press
  • New process: FB press
  • Because a 100% sheared surface of the 14.37 diameter hole is ensured, tilting of the pressure-fit part is improved.
  • Thickness 4.90mm
    Length 105.50mm
    Material SUS304
    Application Two-wheeled vehicle part
    Features FB fabrication of SUS 304 achieves a precision of ±0.01 mm for the hole diameter and the dimensions.
    Thickness 8.00mm
    Length Height Dubbo: 8.00mm
    Material SPHC400
    Application Automobile drum brake part
    Features
  • Conventional: Four-part product
  • New method: One part made by FB
  • One operation plus pre-assembly operations (5 operations) were shortened to one operation for each of the parts.
  • Also, it became possible to directly insert this product using an automated assembly line. This part was co-developed with the manufacturer.
  • Thickness 3.60mm
    Length 20.00mm
    Material S45C
    Application Two-wheeled vehicle engine part
    Features High precision is required for the sheared surface and the surface roughness of the cross section.
    Thickness 5.00mm
    Length φ24.00mm
    Material SPCC
    Application Balancer
    Features The dimension of the surface stamping of the hole is very stringent. Measures are taken to blank without changing the dimension of the surface-stamped portion when blanking the exterior form.
    Thickness 3.60mm
    Length 51.60mm
    Material SPHC
    Application Personal computer part
    Features FB punching achieves an edge width of 30% of the plate thickness in one area, even though the general fabrication limit is 60% of the plate thickness. The fabrication conditions are extremely stringent.
    Thickness 4.00mm
    Length φ40.00mm
    Material SK5
    Application Automobile engine part
    Features The oil supply to the cutting portions during punching is important for this part made of SK5; and oil is supplied directly inside the die.
    Thickness 4.00mm
    Length 102.00mm
    Material SPHC
    Application Automobile fuel tank reinforcing part
    Features The die is made of YXR3 to prevent damage of the die when making this slender product.
    Thickness 8.00mm
    Length φ120.00mm
    Material S45C
    Application Automobile part
    Features Precision between the inner and outer diameters and a sheared surface are required.
    Thickness 6.00mm
    Length 65.00mm
    Material NP233
    Application Automobile engine part (hub)
    Features Plastic formation to increase the thickness is performed inside a progressive FB die.
    Thickness 1.50mm
    Length 30.00mm
    Material PBSP-H
    Application Sensor part
    Features The small holes near the center are 1.25 mm in diameter which is less than the plate thickness.
    Thickness 1.95mm
    Length φ35.00mm
    Material 1%SiFe
    Application Center yoke
    Features
  • The holes previously had to be drilled because the edge widths between the exterior form and the holes around the outer circumference are extremely small.
  • Stamping + hole drilling is replaced with VA.
  • Thickness 2.00mm
    Length 30.00mm
    Material Al505-2S
    Application Electrical part
    Features
  • The edge width is extremely small; and fracture of the edge portion is not permitted.
  • The rounding is reduced.
  • Thickness 6.50mm
    Length 97.00mm
    Material SP
    Application Automobile part
    Features Thickness-reduction forming is performed using progressive fabrication to make the step in the center hole.
    Thickness 6.00mm
    Length 156.00mm
    Material S45C
    Application Automatic loom
    Features
  • The conventional fabrication of casting + machining is replaced with FB.
  • All of the fabrication of this S45C part is possible using FB.
  • More than a 50% cost reduction was achieved.
  • Thickness 6.00mm
    Length 61.00mm
    Material S45C
    Application Automatic loom
    Features
  • The conventional fabrication of casting + machining is replaced with FB.
  • All of the fabrication of this S45C part which has an extremely small edge width is possible using forming/punching FB.
  • A tremendous amount of our know-how prevented plate thickness variation in this slender shape.
  • More than a 50% cost reduction was achieved.
  • Thickness 6.00mm
    Length 80.00mm
    Material SAPH440
    Application Automobile engine part
    Features
  • The conventional fabrication of machining is replaced with FB.
  • The finished product dimensions including a hole precision of ±0.01 are realized in one operation using the FB press.
  • A drastic cost reduction was realized.
  • Thickness 8.00mm
    Length 93.00mm
    Material SCM435
    Application Loom
    Features
  • The conventional fabrication of casting + machining is replaced with FB.
  • A drastic cost reduction was achieved.
  • Thickness 3.50mm
    Length φ43.00mm
    Material SPH440W
    Application Recliner seat part
    Features
  • Conventional: Cast part was milled.
  • New process: FB pressed part + general pressed part (joined with spot welding).
  • A drastic cost reduction was achieved.