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Tipo de Documento:	Artigo
Título :	Polyamide worm gear: manufacturing and performance
Autor :	Gasparin, Alexandre Luís Corso, Leandro Luís Tentardini, Eduardo Kirinus Nunes, Regina Célia Reis Forte, Maria Madalena de Camargo Oliveira, Ricardo Vinicius Bof de
Fecha de publicación :	2012
Resumen:	The focus of this paper is to establish a characterisation method for seven polyamide (PA) grades to determine the major material to manufacture an automotive worm gear. The composite properties were measured according to the worm gear loadings: tensile strength, Young’s modulus, abrasion and impact resistance. They were also correlated to the PA moisture absorption and its glass fibre (GF) reinforcement. The data from mechanical tests were applied in the finite element analysis (FEA) using the von Mises stress criterion. Before the rig tests of the PA worm gears, the injection process was evaluated, through the capillary rheometry. A higher difficulty to process PA 6/6 30% GF was found, due to its lower apparent viscosity. In the end, the influence of moisture absorption was as decisive to the gear’s material selection as the GF to the pinion. Thus, the PAs with the best performance were: PA 6 with 30% GF (gear) and with PA 60% GF (pinion).
Palabras clave :	Polyamide composites Worm gear Material performance
ISSN :	1980-5373
Es parte de:	Materials Research
Idioma :	eng
Institución / Editorial :	Departamento de Engenharia de Materiais/Laboratório de Materiais Vítreos da Universidade Federal de São Carlos
Citación :	GASPARINI, A. L. et al. Polyamide worm gear: manufacturing and performance. Materials Research, São Carlos, v. 15, n. 3, p. 483-489, 2012. Disponível em: https://www.scielo.br/j/mr/a/tmdNpwSPKx567xrSQxgPvdH/?lang=en. Acesso em: 7 out. 2025.
License:	Creative Commons Atribuição-NãoComercial 4.0 Internacional (CC BY-NC 4.0)
URI :	https://ri.ufs.br/jspui/handle/riufs/23368
Aparece en las colecciones:	DCEM - Artigos de periódicos

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