International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
Investigation of some process parameters on forming force in single point incremental forming Vishal Gulati, Ajay Kumar Department of mechanical engineering, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract : Incremental Sheet Forming has a great potential to form complex 3-D sheet metal parts without using a matching die. The die-less forming nature of this process provides a competitive alternative for economically and effectively fabricating low-volume functional sheet products. Thus, this process is viable in small scale production to deal with the various needs like customization, low tooling cost and low setup time. In this work, effects of some process parameters has been investigated on forming forces developed during single point incremental forming on Al 6063 aluminum sheets with the help of table type dynamometer. Keywords: Single point incremental forming, process parameters, die-less forming, forming force. Introduction In the manufacturing world of today, new technologies are being promoted and among them the suited most is Incremental Sheet Forming (ISF). Interest in the ISF has increased over the past decade with the advent of a range of novel forming techniques that automate the deformation process, allowing shaped parts to be produced without the need of stamping. The trend in sheet metal forming industry is to produce more complex parts and a faster production rate of new and individual products in small lot series [1]. Therefore, ISF process is referred as highly attractive for low volume manufacturing and rapid prototyping as it requires no specialized tooling, making them economical process. It is also more feasible compared to the traditional sheet metal forming processes. In view of the total process time and costs due to the shorter lead time, it is faster and less expensive. It also provides an ability to form nonsymmetrical geometries with simple or no tooling and low costs. ISF is applied in a series of small deflections to a material that accumulate to produce a large final deformation. Deformation is carried out with a spherical tool that is pushed into the metal by 0.2-2 mm, causing plastic deformation. This is the first contour of the desired sheet product. The tool, which is generally 5-20 mm in diameter at the tip, is dragged over the sheet at this depth using a CNC sequence to
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