The imitation and application of manipulability and dexterity of human arm have been investigated actively as it can improve the time efficiency and save labor cost greatly. Most of the current studies in this area only focus on recreating the structure of human arm without considering how to use the finger path for forming. In this paper, the authors present a flexible bio-inspired stretch-forming machine (SFM) for the fabrication of parts, which are large and possess large radius bends, with small spring back and smooth surfaces. The flexible bio-inspired SFM was composed by two pairs of finger-inspired jaws in conjunction with six couples of muscle-inspired hydraulic cylinders (the sum of numbers is 60), which only integrates six solenoid types of reversing valves. The path of finger-inspired jaws was planned by setting up the parameters of loading order, stretching direction, and cylinder pull force. The finger-inspired jaws, driven by the muscle-inspired hydraulic cylinders, moved along the given route to realize sheet metal forming. The finite element simulation and experiment results on a series of large radius bends parts formed by the flexible finger-inspired SFM have been reported. The remarkable results are that an effective solution for stretch forming of sheet metal with short free edge has been founded, and an easy control process of stretch forming with finger-inspired jaws has been developed, respectively. This work has an important value in implementation of stretch-forming technology from aircraft to vehicle and building.
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Napier JR (1956) The prehensile movements of the human hand. Journal of Bone and Joint Surgery-British Volume 38:902–913
Castiello U, Dadda M (2019) A review and consideration on the kinematics of reach-to grasp movements in macaque monkeys. J Neurophysiol 121:188–204
Chen F, Carbonari L, Canali C, D’Imperio M, Cannella F (2015) Design of a novel dexterous robotic gripper for in-hand twisting and positioning within assembly automation. Assem Autom 35:259–268
Wang HR, Fan SW, Liu H (2017) Thumb configuration and performance evaluation for dexterous robotic hand design. J Mech Des 139:1–12
Tavakoli M, Sayuk A, Lourenc J, Neto P (2017) Anthropomorphic finger for grasping applications: 3D printed endoskeleton in a soft skin. Int J Adv Manuf Technol 91:2607–2620
Kent B, Engeberg ED (2011) Biologically inspired posture control for a dexterous robotic hand. IEEE ASME International Conference on Advanced Intelligent Mechatronics:451–456
Kim S, Kim J, Kim M, Kim S, Park J (2019) Grasping force estimation by sEMG Signals And Arm Posture: tensor decomposition approach. Journal of Bionic Engineering 16:455–467
Ha N, Withanachchi GP, Yihun Y (2019) Performance of forearm FMG for estimating hand gestures and prosthetic hand control. Journal of Bionic Engineering 16:88–98
Deng H, Luo HX, Wang R, Zhang Y (2018) Grasping force planning and control for tendon-driven anthropomorphic prosthetic hands. Journal of Bionic Engineering 15:795–804
Wang Y, Li MZ, Liu HW (2014) The effect of loading path on forming results in multi-gripper flexible stretch forming. Appl Mech Mater 538:108–112
Park JW, Kim J, Kim KH, Kang BS (2014) Numerical and experimental study of stretching effect on flexible forming technology. Int J Adv Manuf Technol 73:1273–1280
Han QG, Li MZ, Zhang Q, Chen YD, Fu WZ (2013) Design of a new type flexible stretch-forming machine. Adv Mater Res 690-693:2218–2221
Peng HL, Li MZ, Feng PX (2012) Numerical simulation of process parameters in flexible discrete clamp stretch forming. Appl Mech Mater 161:53–57
Peng HL, Li MZ, Fu WZ, Wang Y (2013) Numerical investigation of flexible clamp stretch forming. AIP Conference Proceedings 1532:361–366
Peng HL, Li MZ, Han QG, Feng PX, Zhang HH (2011) Design of flexible multi-gripper stretch forming machine by FEM. Adv Mater Res 328-330:13–17
Polen L A & Harkey J T. Stretch-forming machine and method. P. US Patent, 2007, 20070163323A1
Wang SH, Cai ZY, Li MZ (2010) Numerical investigation of the influence of punch element in multi-point stretching forming process. Int J Adv Manuf Technol 19:475–483
Chen J, Fu WZ, Li MZ, Wang Y, Deng YS (2017) Research on formability of multi-point press forming for 08Al and 2024-O sheet. Key Eng Mater 737:124–132
This work is supported by the project of National Key R&D Program of China (No. 2018YFA0703300), the National Science Foundation of China (Project No. 51475207 and 51,835,006), the Scientific and Technological Development Program of Changchun City (Double Ten Project-19SS001), the Science and Technology Development Program of Jilin Province (Technology R&D Project-20190302021GX), the Industrial Technology Research and Development Funds of Jilin Province (project No. 2019C041–1), and the Jilin Province/Jilin University Co-construction Project–Funds for New Materials (project No. SXGJSF2017–3).
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Han, Q., Wang, J., Han, Z. et al. Design of a flexible bio-inspired stretch-forming machine for the fabrication of large radius bends parts. Int J Adv Manuf Technol 108, 3571–3578 (2020). https://doi.org/10.1007/s00170-020-05435-2
- Stretch forming machine
- Large radius bends parts