Top section of
gasol canister. Alternate
parts come off the press as
respectively top sections with
punched hole and bottom sections without hole. | Conventional DrawingThis is a long established technique for pro-
ducing relatively deep drawn components using
the main cylinder and blankholder for this
purpose. The third cylinder may then be used
for additional functions such as ejection,
piercing and embossing etc. |
|
Hydro-Mechanical Forming
This method of forming for which Lagan Press
is widely acclaimed, involves the use of a Pressure
Dome in which oil under high pressure shapes the
pressing against the punch. It is especially effective
for very deep draws or where asymmetrical or com-
plicated forms are required to be drawn. The
technique also enjoys the advantage of comparatively inexpensive tooling compared to a conventional tool set. |
Rectangular box with
pipe bend manufactured
in one operation. Drawing of the pipe bend
has been completed with
trimming operation. |
"The screw" (left) in 0.6 mm stainless steel is a good example
of the potential of hydro-mechanical forming.
Hign drawing strength, complicated form
and high finish. The spotlight (middle) in
0.7 mm sheet is manufactured in two
operations. In the first an initial drawing is
carried out, and in the second the diameter is reduced at the same time as the insert area is formed. The 0.6 mm brass component
(right) shows the "hammer finish" formed
into the surface purely by the oil pressure
acting on the punch. |
Part in stainless steel
for the food industry, manufactured in one operation.
|
