An Analysis of the Roller Hemming Process using Computational Design-of-Experiments to Interpret the Design Parameters

Abstract

In order to obtain a tight fit, the sheet’s edges are folded or folded over another area during the
hemming process. Hemming procedures are typically used to join components together, to enhance a
part’s appearance, and to strengthen part edges. During the hemming process, a metal sheet edge of
an outside portion is bent around an internal part. The correctness of the hemming operation has a
huge impact on how the exterior of the automobile looks and is therefore crucial to how completed
vehicles are ultimately judged to be of high quality. Also included below are the key process
variables. Parameter research is performed in accordance with a “Design-of-Experiments”. This
parameter research identifies variables that have a significant impact on roll-in, which are then
utilised to build the model’s roll-in response surface. In this chapter, many quality optimization
techniques are also explained. These techniques are centred on streamlining the roll-in procedure
and reducing the wave patterns that appear along the flange when hemming. Process engineers and
robot programmers can use this to establish a stable process window by selecting the ideal process
configuration ranges.