Abstract
Forming simulations generally give satisfying results with respect to thinning, stresses, changed
material properties and, with a proper springback calculation, the geometric form. The joining of parts by
means of welding yields an extra change of the material properties and the residual stresses. Welding
simulations are also possible to a very accurate degree, they are however very time consuming, even on large
computer systems. Therefore it is not feasible to include a complete incremental welding simulation in the
virtual model of car parts. Instead, simplified weld models are developed that retain the features needed for
subsequent calculations (e.g. structural und fatigue calculations), but do not increase the computation time
significantly. Thus, an accurate model for specific tasks can be achieved which includes both forming and
welding. The objective of this paper is to show how the integration of the complete history of manufacturing
of the single parts and its combination to larger car components, enhances the capabilities of the virtual
model. This integration procedure must be adapted specifically to the different subsequent calculations in
order to combine a maximum of reliability with a minimum of computer effort. In this paper it is
demonstrated how the performance of a chassis part changes with the inclusion of both the plastic forming
effects and the effects of welding as provided by the simplified weld models. The results are compared to the
results of the same part where the manufacturing stages were neglected, which is industrial standard
nowadays.
Original language | Undefined |
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Publication status | Published - 2004 |
Event | ESAFORM 2004: 7th ESAFORM Conference on Material Forming - Trondheim, Norway, Trondheim, Norway Duration: 28 Apr 2004 → 30 Apr 2004 Conference number: 7 |
Conference
Conference | ESAFORM 2004 |
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Abbreviated title | ESAFORM |
Country | Norway |
City | Trondheim |
Period | 28/04/04 → 30/04/04 |
Other | 28-30 april 2004 |
Keywords
- IR-76530