Optics and Precision Engineering, Volume. 20, Issue 1, 117(2012)
Continuous forming for rotary surface based on multi-point adjusting principle
A Continuous Multi-point Forming (CMPF) method was researched to realize high efficiency and flexible manufacturing for rotary surfaces. The principle of CMPF was described and its characteristics were analyzed by comparing with the traditional rotary surface manufacturing method. By taking a disc-shape suface for an example, the Finite Element Model(FEA) was established, and equivalent stress and plastic strain distributions were analyzed. By simulation results and principal strain vectors, the wrinkling was discussed. Finally, the CMPF equipment was developed, and experiments were performed. Results indicate that the equivalent stresses in the region of center fixing and a flexible roller exceed the yield stress, and their maximum value is 213 MPa; the maximum plastic strain is generated in the center region, and its value is 0.07; the plastic strain in the region of flexible roller takes the second place, and its value is 0.03. Furthermore, shell elements in the wrinkling region generate the compress deformation in a tangent direction in 605-615 mm which accord with the simulation results. It concludes that the simulation results of stress field, strain field and wrinkling are in good agreement with practical situations and the CMPF equipment can manufacture good rotary surfaces.
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GONG Xue-peng, LI Ming-zhe, LU Qi-peng, PENG Zhong-qi. Continuous forming for rotary surface based on multi-point adjusting principle[J]. Optics and Precision Engineering, 2012, 20(1): 117
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Received: Oct. 27, 2010
Accepted: --
Published Online: Feb. 14, 2012
The Author Email: Xue-peng GONG (gongxuepeng120@yahoo.com.cn)