Abstract
Incremental sheet forming (ISF) has demonstrated significant potential to form complex three-dimensional parts without using component-specific tools and is suitable for economically fabricating low-volume functional sheet metal parts. Single-point incremental forming (SPIF) uses only one tool to form components and requires additional setup to form complex geometries. Double-sided incremental forming (DSIF), using two tools (one on either side of the sheet), can form features from top and bottom of sheet in single setup. While forming components with multiple features, the accuracy of component depends on the tool path strategy used for each feature and sequence in which features are formed. Methodologies are developed to recognise features from free-form components modeled using single and/or multiple surfaces. Recognised features are sliced using horizontal, inclined or offset strategies (developed during the present work) based on the geometrical characteristics of a given feature. Selection of best-forming sequence is automated based on the relation between features and process mechanics. Results presented in this paper show that complex free-form geometries can be formed with good accuracy using proposed methodologies. Maximum deviation between the measured and ideal profiles is less than 400 μm, while using right sequence and appropriate tool path strategy.
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Jeswiet J, Micari F, Hirt G, Bramley A, Duflou J, Allwood J (2005) Asymmetric single point incremental forming of sheet metal. CIRP Annals Manuf Technol 54(2):88–114
Asghar J, Lingam R, Shibin E, Reddy NV (September 2014) Tool path design for enhancement of accuracy in single-point incremental forming. Proc IME B J Eng Manufact 228(9):1027–1035
Ambrogio G, Costantino I, De Napoli L, Filice L, Fratini L, Muzzupappa M (2004) Influence of some relevant process parameters on the dimensional accuracy in incremental forming: a numerical and experimental investigation. J Mater Proc Technol 153:501–507
Singh S (2009) Single point incremental forming: Formability and surface finish studies. Master’s thesis, Indian Institute of Technology Kanpur
Duflou JR, Callebaut B, Verbert J, De Baerdemaeker H (2007) Laser assisted incremental forming: formability and accuracy improvement. CIRP Annels Manuf Technol 56(1):273–276
Duflou JR, Callebaut B, Verbert J, De Baerdemaeker H (2008) Improved SPIF performance through dynamic local heating. Int J Mach Tool Manuf 48:543–549
Verbert J, Duflou JR, Lauwers B (2007) Feature based approach for increasing the accuracy of the spif process. Key Eng Mater 344:527–534
Behera AK, Vanhove H, Lauwers B, Duflou JR (2011) Accuracy improvement in single point incremental forming through systematic study of feature interactions. Key Eng Mater 473:881–888
Behera AK, Lauwers B, Duflou JR (2015) Tool path generation for single point incremental forming using intelligent sequencing and multi-step mesh morphing techniques. Int J Mater Form 8(4):517–532
Lu B, Chen J, Ou H, Cao J (2013) Feature-based tool path generation approach for incremental sheet forming process. J Mater Proc Technol
Aerens R, Eyckens P, Van Bael A, Duflou JR (2010) Force prediction for single point incremental forming deduced from experimental and fem observations. Int J Adv Manuf Technol 46(9–12):969–982
Li Y, Liu Z, Lu H, Bill Daniel WJT, Liu S, Meehan PA (2014) Efficient force prediction for incremental sheet forming and experimental validation. Int J Adv Manuf Technol 73(1–4):571–587
Mirnia MJ, Dariani BM (2012) Analysis of incremental sheet metal forming using the upper-bound approach. Proc Inst Mech Eng B J Eng Manuf:0954405412445113
Abhishek K (2009) Multi-stage tool path strategies for single point incremental forming. M.Tech thesis, Indian Institute of Technology Kanpur
Malhotra R, Bhattacharya A, Kumar A, Reddy NV, Cao J (2011) A new methodology for multi-pass single point incremental forming with mixed toolpaths. CIRP Ann Manuf Technol 60(1):323–326
Cao T, Lu B, Xu D, Zhang H, Chen J, Long H, Cao J (2014) An efficient method for thickness prediction in multi-pass incremental sheet forming. Int J Adv Manuf Technol 77(1–4):469–483
Bhattacharya A, Maneesh K, Reddy NV, Cao J (2011) Formability and surface finish studies in single point incremental forming. J Manuf Sci Eng 133(6)
Meier H, Buff B, Laurischkat R, Smukala V (2009) Increasing the part accuracy in dieless robot-based incremental sheet metal forming. CIRP Ann Manuf Technol 58(1):233–238
Meier H, Magnus C, Smukala V (2011) Impact of superimposed pressure on dieless incremental sheet metal forming with two moving tools. CIRP Ann Manuf Technol 60(1):327–330
Cao J, Huang Y, Reddy NV, Malhotra R, Wang Y (2008) Incremental sheet metal forming: advances and challenges. In: Proceedings of ICTP 2008 international conference on technology of plasticity, Gyeongju, pp 751–752
Malhotra R, Cao J, Ren F, Kiridena V, Cedric Xia Z, Reddy NV (2011) Improvement of geometric accuracy in incremental forming by using a squeezing toolpath strategy with two forming tools. ASME J Manuf Sci Eng 133(6)
Malhotra R, Cao J, Beltran M, Xu D, Magargee J, Kiridena V, Xia ZC (2012) Accumulative-dsif strategy for enhancing process capabilities in incremental forming. CIRP Ann Manuf Technol
Skjødt M, Bay N, Endelt B, Ingarao G (2008) Multi stage strategies for single point incremental forming of a cup. Int J Mater Form 1:1199–1202
Smith J, Malhotra R, Liu WK, Cao J (2013) Deformation mechanics in single-point and accumulative double-sided incremental forming. Int J Adv Manuf Technol 69(5–8):1185–1201
Xu R, Ren H, Zhang Z, Malhotra R, Cao J (2014) A mixed toolpath strategy for improved geometric accuracy and higher throughput in double-sided incremental forming. In: ASME 2014 international manufacturing science and engineering conference collocated with the JSME 2014 international conference on materials and processing and the 42nd North American manufacturing research conference, pp V002T02A082–V002T02A082
Lingam R, Kishan IVM, Harikrishnan CL, Reddy NV (2015) Importance of feature sequencing in incremental forming. In: ASME 2015 international manufacturing science and engineering conference
Lingam R, Bhattacharya A, Asghar J, Reddy NV (2015) Compensations for tool path to enhance accuracy during double sided incremental forming. In: ASME 2015 International Manufacturing Science and Engineering Conference
Elber G (2001) Curve evaluation and interrogation on surfaces. Graph Model 63:197–210
Surti A, Reddy NV (2012) Non-discretized approach to visibility analysis for automatic mold feature recognition using step part model. J Adv Manuf Syst 11(01):1–16
Lingam R (2012) An interactive tool for feature sequencing in incremental forming. Master’s thesis, Indian Institute of Technology Kanpur
Lee E (2003) Contour offset approach to spiral toolpath generation with constant scallop height. Comput Aided Des 35(6):511– 518
Malhotra R, Reddy NV, Cao J (2010) Automatic 3d spiral toolpath generation for single point incremental forming. ASME J Manuf Sci Eng 132(6)
Bhattacharya A (2014) Studies on incremental forming to enhance accuracy and geometric complexity. PhD thesis, Indian Institute of Technology Kanpur
Silva MB, Skjødt M, Martins PAF, Bay N (2008) Revisiting the fundamentals of single point incremental forming by means of membrane analysis. Int J Mach Tool Manuf 48(1):73–83
Timoshenko S (1964) Theory of plates and shells, 2nd edn. McGrawHill, New York
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Lingam, R., Prakash, O., Belk, J.H. et al. Automatic feature recognition and tool path strategies for enhancing accuracy in double sided incremental forming. Int J Adv Manuf Technol 88, 1639–1655 (2017). https://doi.org/10.1007/s00170-016-8880-1
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DOI: https://doi.org/10.1007/s00170-016-8880-1