Modelling manufacturing errors in machining of thermoplastics
Source: International Journal of Computer Applications in Technology, Volume 33, Number 1, 8 December 2008 , pp. 72-80(9)
Publisher: Inderscience Publishers
Abstract:A polyamide 66 (PA66) plate was machined by milling, and the deformation of the machined surface was acquired by using a coordinate‐measuring machine. The plastic material was characterised in terms of density, thermal and thermo‐mechanical properties to evaluate the distribution of the material properties across the thickness. As a result, the moulded material is not homogeneous and residual stresses cause the plate to distort after machining. A numerical procedure was proposed to predict the manufacturing errors resulting from the material removal from the plate. The numerical model was verified with the experimental data and was applied to plastic components with different shapes.
Document Type: Research Article
Affiliations: 1: Department of Mechanics, University of Calabria, Via P. Bucci, Arcavacata di Rende, Cosenza, Italy. 2: Department of Mechanical Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy. 3: Department of Mechanical Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
Publication date: 2008-12-08
- The International Journal of Computer Applications in Technology addresses issues of computer applications, information and communication systems, software engineering and management, CAD/CAM/CAE, numerical analysis and simulations, finite element methods and analyses, robotics, computer applications in multimedia and new technologies, computer aided learning and training.