6533b7d6fe1ef96bd12659da

RESEARCH PRODUCT

An Optical Technique for Springback Measurement in Axisymmetrical Deep Drawing Operations

Livan FratiniL. D’acquisto

subject

Set (abstract data type)Shadow moireMaterials scienceForce levelbusiness.industryStrategy and ManagementCADStructural engineeringManagement Science and Operations ResearchDeep drawingbusinessIndustrial and Manufacturing EngineeringFinite element method

description

Abstract In this paper, a measurement technique based on the shadow moire method has been set up to evaluate the springback phenomenon in deep drawing operations. Two proper coefficients are introduced to quantitatively describe the investigated effect. In particular, the proposed technique is able to acquire the final profile of the drawn parts along one or more lateral contour, once extracted out from the dies, and compare such profile with the ideal one derived from the dies CAD geometry. The proposed technique has been applied to an axisymmetrical deep drawing operation, and, moreover, the influence of the blankholder force level and lubricating conditions has been taken into account. The obtained results have been compared both with a numerical prediction deriving from a commercial FEM code and measurements performed by a CMM.

https://doi.org/10.1016/s1526-6125(01)70031-x