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
(**) : 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
(**) : 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