VEDAÇÕES AUTOMOTIVAS: análise dimensional no processo de extrusão de vedações de porta em borracha

Abstract

The growing search for new materials and processes that offer better conditions for the use of automobiles today, has been a great search for companies worldwide. Based on these facts, the study presented focuses on the evaluation of automotive seals, which are directly impacted by these trends and new materials, the study specifically deals with door linings that meet the PALIO / FIAT program. With all these technologies during the day-to-day production of these items situations arise that make it necessary for the engineering intervention to be resolved in the best possible time and requiring small investments for their resolution, in this work the results on the dimensional variation will be presented. on these seals after the extrusion process, due to official complaints made by the customer about its dimensional characteristics during the assembly process on the vehicle body. The criteria used were the performance of shrinkage tests in different environments. seeking to simulate the situations encountered in the day-to-day and a shrinkage test according to the customer's technical standard that points out the maximum tolerable variations in these parts. The objective of this study is to present the relationship between the dimensional variation (shrinkage) and the temperature at which the product is found, identifying the origin of the customer's complaints about the behavior of these items during its assembly and presenting a solution to the problem presented.