فهرست مقالات Thermoplastic Polymer

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  1 - Friction Stir Welding of Dissimilar Poly Methyl Methacrylate and Polycarbonate Sheets
  Mojtaba Rezaee Hajideh Omid Shapurgan Navid Molla Ramzani Essa Hasan Nejad
  The widespread application of thermoplastic polymers in different aspects of industries has motivated researchers and companies to improve and upgrade their forming, joining and assembling processes to overcome their limitations. One of the newest joining methods of the چکیده کامل

  The widespread application of thermoplastic polymers in different aspects of industries has motivated researchers and companies to improve and upgrade their forming, joining and assembling processes to overcome their limitations. One of the newest joining methods of thermoplastics is friction stir welding which is based on frictional heat generated through contact between a rotating tool and the workpiece.The aim of this study is to investigate the weldability of dissimilarpoly methyl methacrylate and polycarbonatesheets via friction stir welding approach.The effects of process parameters such as rotational and traverse speeds and the heater temperature on the mechanical properties of the joints were studied comprehensively. Rotational and traverse speeds and heater temperature of 2100 rpm, 8 mm/min and 120 °C, offered the optimized mechanical properties of the joint. In the optimum joining condition, welded joint with strength equal to 98% of polycarbonate and with higher hardness than the polycarbonate was obtained. پرونده مقاله
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  2 - A Hybrid Thermal Assisted Friction Stir Welding Approach for PMMA Sheets
  Mojtaba Rezaee Hajideh Mohammadreza Farahani Masoud Ahmad Khanbeigi
  The widespread application of thermoplastic polymers in different aspects of industries hasmotivated researchers and companies to improve and upgrade their forming, joining and assemblingprocesses to overcome their limitations. One of the newest joining methods of therm چکیده کامل

  The widespread application of thermoplastic polymers in different aspects of industries hasmotivated researchers and companies to improve and upgrade their forming, joining and assemblingprocesses to overcome their limitations. One of the newest joining methods of thermoplastics isfriction stir welding which is based on frictional heat generated through contact between a rotatingtool and the workpiece. A hybrid thermal assisted friction stir welding approach was proposed inthis study for two Poly methyl methacrylate sheets. In this method, the stationary shoe was heatedup to the specified temperature and then the FSW tool was gradually plunged toward the clampedsheets. The effects of different process parameters such as rotational and traverse speeds and theheater temperature on the mechanical properties of the joints were studied. Results showed thatapplying the optimum rotational speeds of 1600 rpm and highest traverse speeds of 12.5 mm/minwith the stationary shoe heats up to 70% of base polymer melting temperature which leads to thehighest joint performance with strength equal to 95% of PMMA strength. پرونده مقاله