Process workflow

The various processing steps for each type of product are presented below. They refer to standardized production processes: but, based on the high level of flexibility achieved in all phases of development and in-depth application knowledge gained over time, it is possible to obtain results offered according to customer customization.

By way of example, a couple of cases have been inserted in which the head is obtained by joining half discs: in reality, any kind of head, of considerable size, can be made by joining a number of segments together.

Semi-elliptical heads, torispherical, etc. (from a single sheet of metal)

  • blank
  • cutting
    (disc)
  • deburring
  • dish forming
  • flanging
  • trimming and
    bevelling
  • Non-destructive
    testings (*)
  • heat
    treatment (*)
  • dimensional
    inspection
  • shipping
(*) : according to standard or on customer request

Semi-elliptical heads, torispherical, etc. (by joining half discs)

  • blank
  • cutting
    (half discs)
  • deburring
  • bevelling
  • welding (disc)
  • dish forming
  • flanging
  • trimming and
    bevelling
  • Non-destructive
    testings (*)
  • heat
    treatment (*)
  • dimensional
    inspection
  • shipping
(*) : according to standard or on customer request

Flanged-only heads, special flat heads, flanged rings

  • blank
  • cutting
    (disc)
  • deburring
  • flanging
  • trimming and
    bevelling
  • Non-destructive
    testings (*)
  • heat
    treatment (*)
  • dimensional
    inspection
  • shipping
(*) : according to standard or on customer request

Flanged-only heads, expansion joint bellows

  • blank
  • cutting
    (disc)
  • deburring
  • flanging
  • reverse flanging
    for cold or
    hot-forming
  • trimming and
    bevelling
  • Non-destructive
    testings (*)
  • heat
    treatment (*)
  • dimensional
    inspection
  • shipping
(*) : according to standard or on customer request

Hot-formed heads

  • blank
  • cutting
    (disc)
  • deburring
  • hot forming
  • trimming and
    bevelling
  • Non-destructive
    testings (*)
  • heat
    treatment (*)
  • dimensional
    inspection
  • shipping
(*) : according to standard or on customer request

Dished-only heads (from a single sheet of metal)

  • blank
  • cutting
    (disc)
  • deburring
  • dish forming
  • trimming and
    bevelling
  • Non-destructive
    testings (*)
  • heat
    treatment (*)
  • dimensional
    inspection
  • shipping
(*) : according to standard or on customer request

Dished-only heads (by joining two half discs)

  • blank
  • cutting
    (half discs)
  • deburring
  • bevelling
  • welding (disc)
  • dish forming
  • trimming and
    bevelling
  • Non-destructive
    testings (*)
  • heat
    treatment (*)
  • dimensional
    inspection
  • shipping
(*) : according to standard or on customer request

Hemispheres

  • blank
  • cutting
    (segments + disc)
  • deburring
  • dish forming
  • heat
    treatment (*)
  • dimensional
    restoration
  • trimming and
    bevelling
  • assembling
    (hemisphere)
  • tack welding
  • dimensional
    inspection
  • shipping (**)
(*) : according to standard or on customer request
(**) : loose parts also provided

Conical heads

  • blank
  • cutting
    (cone segments)
  • deburring
  • bevelling
  • bending
  • tack welding
    (cone) (*)
  • trimming and
    bevelling
  • Non-destructive
    testings (**)
  • heat
    treatment (**)
  • dimensional
    inspection
  • shipping
(*) : on customer request, welding (cone) > flanging and/or reverse flanging
(**) : according to standard or on customer request

Shells

  • blank
  • cutting
    (rectangle)
  • deburring
  • bevelling
  • bending
  • tack welding
    (shell) (*)
  • dimensional
    inspection
  • shipping
(*) : on customer request, welding (shell) > non-destructive testings