Artículos de revistas
Mechanical and thermal properties of friction-stir welded joints of high density polyethylene using a non-rotational shoulder tool
Fecha
2018Registro en:
Moreno-Moreno, M., Romero, Y. M., Zambrano, H. R., Restrepo-Zapata, N. C., Afonso, C. R. M., & Unfried-Silgado, J. (2018). Mechanical and thermal properties of friction-stir welded joints of high density polyethylene using a non-rotational shoulder tool. The International Journal of Advanced Manufacturing Technology, 97(5-8), 2489-2499.
0268-3768
1433-3015
DOI: 10.1007/s00170-018-2102-y
Autor
Catalina Restrepo-Zapata, Nora [Univ Mayor, Fac Ciencias, Nucleo Matemat Fis & Estadist, Santiago, Chile]
Moreno-Moreno, Mirley
Macea Romero, Yorledis
Rodríguez Zambrano, Habib
Moreira Afonso, Conrado Ramos
Unfried-Silgado, Jimy
Institución
Resumen
The effects of rotational and welding speed on the mechanical properties and thermal behavior in friction stir welded joints of high-density polyethylene using a non-rotational shoulder have been investigated experimentally. Tensile properties and hardness were measured to determine the mechanical properties, and the effect of the welding parameters. Heating and cooling cycles of differential scanning calorimetry were used to establish thermal properties. Microstructure observations complemented experimental observations. Results showed that tensile strength, hardness, and crystallinity decreased when rotational speed was increased, while the welding speed effect was weak. Deleterious phenomena on molecular structure of the stir region were explained by means combination of selected welding parameters and the material flow during the process.