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Experimental study of the forming possibility of ISF process for PVC plastic sheet

This article presents an experimental study examining the effects of technological parameters to the ISF process on PVC material such as : tool diameter d, tool step depth ∆z, feed rate f and forming temperature T, thereby the determining the limiting value of angular distortion αmax. | TAÏP CHÍ PHAÙT TRIEÅN KH&CN, TAÄP 15, SOÁ K1- 2012 EXPERIMENTAL STUDY OF THE FORMING POSSIBILITY OF ISF PROCESS FOR PVC PLASTIC SHEET Nguyen Van Nang(1), Nguyen Thanh Nam(1), Le Khanh Dien(2), Nguyen Thien Binh(1), Nguyen Minh Tu(1) (1) Digital Controlling and System Engineering Lab – DCSELAB (2) University of Technology, VNU–HCM (Manuscript Received on April 5th, 2012, Manuscript Revised November 20rd, 2012) ABSTRACTS: This article presents an experimental study examining the effects of technological parameters to the ISF process on PVC material such as : tool diameter d, tool step depth ∆z, feed rate f and forming temperature T, thereby the determining the limiting value of angular distortion αmax. Keyword: Experimental study, ISF process, forming possibility of PVC sheets. Incremental Sheet Forming (ISF) a new 1. INTRODUCTION sheet forming process has been developed in Polymer materials hold a significant proportion of civil and industrial products. The traditional technique to produce polymer products based largely on the heating process shaping - cooling, are conducted at yield or flow status to mould and is only suitable for mass production because of high energy and equipment cost. Thus, to meet the requirements for reducing cycle time and suitable to produce single pieces, small batch, rapid prototyping, we need to have innovative technologies to recent years. Two types of this technology is Single point incremental forming (SPIF) and Two point incremental forming (TPIF). At first the process was studied on metal materials, later the scope was expanded on the polymer, composite. The ISF technogogy equipment is often a simple frame for clamping sheet material, while the forming is done using a device moving along the contour that is programmed by the CNC machine or industrial robot (Figure 1). make new manufacturing technique flexible. Trang 5 Science & Technology Development, Vol 15, No.K1- 2012 Blank sheet Toolpath Forming sheet Forming .