MELHORIA DA QUALIDADE NO PROCESSO DE EXTRUSÃO: em uma indústria de cabos elétricos

Abstract

This work addresses the quality improvement in the extrusion process in an electric cable industry. Such an approach is necessary because the extrusion process is very complex, and suffers from numerous variables that represent significant costs in terms of waste of raw material. The objective of this work is to confirm and measure the high variability rate, evidencing the great unnecessary losses of the extrusion process, due to the absence of control of the same. This purpose will be achieved through bibliographic review, archival analysis, interviews, observations and applications of quality tools namely: control letter, brainstorming and ishikawa, to prove the initial suspicions and propose an improvement to the process. The analysis showed that the variability is a serious factor in the extrusion process and that the causes are due to the absence of process control, implying the loss of raw material. However, it is possible to readjust the process through statistical control of production, with on-line tools that demonstrate in detail the behavior of the production in the extruder, allowing a fast action of control of the same.