Mechanical engineering major project: Weldless flange connections | Full project report
This development project is a bachelor’s degree thesis work that will conclude
the education program ”Development Technology” at Blekinge Institute of
Technology. The development project has been done in cooperation with
Faurecia Exhaust Systems AB in Torsås that constructs and manufactures
manifolds, catalytic converters, mufflers and whole exhaust systems.
The task with this project was to find a new solution concept for the
connection of pipes into flanges in manifolds. The concept that Faurecia uses
today for their manifolds is based on welding the pipes into place in the
The product development model that is used in this project is written by Fredy
Olsson. For this project have the parts ”Principal construction” and ”Primary
construction” been used.
During the principal construction has a product definition been made and the
criterions that should be satisfied by the following solution concept was
determined. Several solutions were designed and evaluated by the project
members and in cooperation with the supervisors at Faurecia. The solutions
that were subject for further development were prepared during the primary
construction with for example CAD.
Three solution concepts were the result from this thesis work. All of the
solution concepts contain end shaped pipes that provides the sealing area
against the engine. The main difference between them is that the flange is
designed in different ways.