Incremental forming is an emerging technique for reducing the cost of tooling, increasing the flexibility and reducing the thermal energy usage in forming of thermoplastic polymer surfaces. This paper examines the effect of Single Point Incremental Forming (SPIF) on the mechanical properties of a semi-crystalline Polyamide (Nylon 66) material. The effects of incremental depth and tool rotation speed on these properties, and on the sheet temperature during forming are quantified. Differential Scanning Calorimetry and X-ray Diffraction are performed to understand changes in crystallinity and chain orientation of the polymer due to SPIF. It is found that the formed material has a substantial higher toughness and ductility, but reduced yield stress and Young’s modulus, as compared to the formed material. Stress relaxation tests show similar relaxation behavior for the formed and unformed polymer. The effect of SPIF on the chain orientation and its link to the mechanical properties are discussed.
Skip Nav Destination
ASME 2016 11th International Manufacturing Science and Engineering Conference
June 27–July 1, 2016
Blacksburg, Virginia, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-4989-7
PROCEEDINGS PAPER
Mechanical Properties and Chain Orientation in Single Point Incremental Forming of Semi-Crystalline Polyamide Available to Purchase
Mohammad Ali Davarpanah,
Mohammad Ali Davarpanah
Oregon State University, Corvallis, OR
Search for other works by this author on:
Shalu Bansal,
Shalu Bansal
Oregon State University, Corvallis, OR
Search for other works by this author on:
Rajiv Malhotra
Rajiv Malhotra
Oregon State University, Corvallis, OR
Search for other works by this author on:
Mohammad Ali Davarpanah
Oregon State University, Corvallis, OR
Shalu Bansal
Oregon State University, Corvallis, OR
Rajiv Malhotra
Oregon State University, Corvallis, OR
Paper No:
MSEC2016-8533, V001T02A061; 7 pages
Published Online:
September 27, 2016
Citation
Davarpanah, MA, Bansal, S, & Malhotra, R. "Mechanical Properties and Chain Orientation in Single Point Incremental Forming of Semi-Crystalline Polyamide." Proceedings of the ASME 2016 11th International Manufacturing Science and Engineering Conference. Volume 1: Processing. Blacksburg, Virginia, USA. June 27–July 1, 2016. V001T02A061. ASME. https://doi.org/10.1115/MSEC2016-8533
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Influence of Single Point Incremental Forming on Mechanical Properties and Chain Orientation in Thermoplastic Polymers
J. Manuf. Sci. Eng (February,2017)
Influence of Carbon Content in Cobalt-Based Superalloys on Mechanical and Wear Properties
J. Eng. Mater. Technol (April,2004)
Scaling in Polymer Tubes and Interpretation for Use in Solar Water Heating Systems
J. Sol. Energy Eng (February,2005)
Related Chapters
The Effect of Long Isothermal Holds on Hydride Dissolution and Precipitation Behavior in Zircaloy-2 and Zr-2.5Nb
Zirconium in the Nuclear Industry: 20th International Symposium
Insulating Properties of W-Doped Ga2O3 Films Grown on Si Substrate for Low-K Applications
International Conference on Advanced Computer Theory and Engineering, 4th (ICACTE 2011)
Chitosan-Based Drug Delivery Systems
Chitosan and Its Derivatives as Promising Drug Delivery Carriers