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Analysis of springback phenomenon in a multistage precision cold forging process

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Hello Forum users,


An automatic multi-stage precision cold forging process of a yoke was simulated with emphasis on springback phenomenon using an elastoplastic finite element method. The results are discussed below.




Figure 1. Yoke to be studied (cold forging)




Figure 2. Process design and simulation result of the 6-stage cold forging process




Figure 3. Returning process of the punch in Stage 5 – Contours of nodal velocity shown in the picture



Figure 4. Measurement of distances between measuring points at ears before and after the punch returning process


It was observed that the AFDEX predictions deviated from the experiment values by 16% in this example. 


Cheers from AFDEX Support Team !

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