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SPF/DB - Sandwich Parts

Integral Construction by
Superplastic Forming with Diffusion Bonding

We develop and produce complex sheet-metal parts on our SPF/DB hot- press to high quality standards derived from aerospace industry: an ideal basis for economic development and cost effective small run production. By using our advanced SPF/DB-technology we enable our customers to use completely new and innovative solutions:
  • volume objects with part integration of highest complexity,
  • greater design freedom and
  • more economical production.



SPF/DB: a method for economic manufacture of three-dimensional objects and sandwich structures.

Technology: A separating agent is placed on defined areas between titanium sheets. Temperature of over 900 °C and gas pressure are applied,

the unmasked areas are bonded by DB. The flat sandwich is inflated - integrated webs are formed by SPF.

SPF/DB = Super Plastic Forming / Diffusion Bonding


SPF/DB - Parts

Integrated rein-
forced parts
using sandwich
Extended de-
sign freedom
for titanium
Integral con-
struction with
high strain for-
reduces pro-
duction steps
Savings through higher part integration

reduced production steps

more economical processes



SPF - Superplastic Forming
DB - Diffusion Bonding
SPF with Diffusion Bonding
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Mittelwendung 26
D-28844 Weyhe-Dreye

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