Aplikasi Teknologi Single Point Incremental Forming (SPIF) pada Pembentukan Half Spherical-Shaped Product

Aida Mahmudah, Sidik Permana, Haris Setiawan, M. Fauzan Arif


In this study, the single point incremental forming (SPIF) method was applied to the half spherical-shaped vent cap products with 1mm thickness of aluminium. The dimensions of the blank before forming is 1x Ø225mm, and the final dimensions of the product are 69.50 x Ø225mm. Blank material is gripped to the fixture explicitly made according to the final product shape. The SPIF process uses a punch tool with a diameter of 12mm, so the process condition parameters that will be used are 0.5 mm step down, 35 rpm spindle speed, and 1000 mm/min feed. The lubrication used is VG 32 isocut cutting oil. The SPIF process for air cap products is carried out using two forming strategies, namely single-stage and multi-stage. In the single-stage formation strategy, the product experienced a tear at a depth of 18.5mm. Whereas in a multi-stage forming strategy, a product with three forming stages was successfully formed without tears, but experienced changes in dimensions and shape at the end of the final stage. Therefore the testing of SPIF process in a half-spherical shaped still requires development to get the planned shape and dimensions.


Single Point Incremental Forming; Spherical-Shaped; Multi-Stage Strategy

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V. BOLJANOVIC, Sheet Metal Forming Processes and Die Design. 200 Madison Avenue, New York, New York 10016: Industrial Press Inc., 2004.

NIMBALKAR, D. H. and NANDEDKAR, V. M., " Review of Incremental Forming of Sheet Metal Components," International Journal of Engineering Research and Applications, vol. 3, p. 13, Seot-Oct 2013 2013.

J. CÂMARA, "Single Point Incremental Forming," PhD, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, 2009.

J. R. DUFLOU, A.-M. HABRAKEN, J. CAO, R. MALHOTRA, M. BAMBACH, D. ADAMS, et al., "Single point incremental forming: state-of-the-art and prospects," International Journal of Material Forming, vol. 11, pp. 743-773, November 01 2017.

C. V. AJAY, C. BOOPATHI, P. KAVIN., "Incremental sheet metal forming (ISMF): A literature review," AIP Conference Proceedings, vol. 2128, p. 030012, 2019.

U. WIKANDA, "Analisis Penyimpangan Dimensi Produk Hasil metoda Single point Incremental Forming Dengan Material SPCC 270 dan Alumunium Alloy," Diploma IV, Teknik Mesin dan Manufaktur, Politeknik Manufaktur Bandung, Bandung, 2016.

M. SKJØDT, "Single Point Incremental Forming " PhD Disertation, Department of Mechanical Engineering, Technical University of Denmark, DTU Mechanical Engineering, 2008.

L. R. ZHOU, "Study of Sphere NC Sheet Metal Incremental Forming," Advanced Materials Research, vol. 239-242, pp. 1036-1039, 2011.

M. YANG, Z. YAO, Y. LI, P. LI, C. FENGKUI, and L. BAI, "Study on Thickness Thinning Ratio of the Forming Parts in Single Point Incremental Forming Process," Advances in Materials Science and Engineering, vol. 2018, pp. 1-11, 06/24 2018.

D. YOUNG and J. JESWIET, "Wall thickness variations in single-point incremental forming," Proceedings of The Institution of Mechanical Engineers Part B-journal of Engineering Manufacture - PROC INST MECH ENG B-J ENG MA, vol. 218, pp. 1453-1459, 11/01 2004.

B. A., S. SAMARJIT, M. K., R. N. VENKATA, and C. JIAN, "Formability and surface finish studies in single point incremental forming," International Manufacturing Science and Engineering Conference, vol. 133, p. 20, 2011.

D. S. MALWAD and V. M. NANDEDKAR, "Deformation Mechanism Analysis of Single Point Incremental Sheet Metal Forming," Procedia Materials Science, vol. 6, pp. 1505-1510, 2014/01/01/ 2014.

J. KOPAC and Z. KAMPUS, "Incremental sheet metal forming on CNC milling machine-tool," Journal of Materials Processing Technology, vol. 162-163, pp. 622-628, 2005/05/15/ 2005.

M. SKJOEDT, M. B. SILVA, P. A. F. MARTINS, and N. BAY, "Strategies and limits in multi-stage single-point incremental forming," The Journal of Strain Analysis for Engineering Design, vol. 45, pp. 33-44, 2010/01/01 2010.

HAM, M. and JESWIET, J., "Dimensional Accuracy of Single Point Incremental Forming," International Journal of Material Forming, vol. 1, p. 1171, 2007.

T. CAO, B. LU, D. XU, H. ZHANG, J. CHEN, H. LONG., "An efficient method for thickness prediction in multi-pass incremental sheet forming," The International Journal of Advanced Manufacturing Technology, vol. 77, pp. 469-483, 03/01 2014.

DOI: https://doi.org/10.21776/ub.jrm.2020.011.02.9


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