Surface Defects Avoidance

One of the important issues regarding sheet metal stamping is surface defects since the stamping process affects surface appearance and thus influences surface quality. As a result, during the product development process, much attention is paid to avoiding defects on surface appearance and the resulting surface quality. Therefore, the ability to predict surface defects early on is important in order to ensure there is enough time to take corrective measures.

In recent years, AutoForm has continuously improved the procedure for surface defect detection and avoidance. By using AutoForm software with its high simulation accuracy and complete process definition, you can evaluate and visualize surface defects in order to take steps to improve the surface quality.

In the first step of the procedure, you ensure part feasibility and part quality with respect to “Class A” surface requirements. Subsequently, you carry out an analysis of the reference geometry. By comparing the desired geometry with the obtained simulation result, curvature deviations become apparent. Once the surface defects have been identified, you decide how to adapt the forming process in order to avoid surface defects and then integrate these measures into the simulation setup. In the final step, you run a simulation in order to analyze and confirm whether the implemented measures were effective.

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