Banca de DEFESA: FELIPE SIMOES CAYRES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FELIPE SIMOES CAYRES
DATE: 19/07/2022
TIME: 14:00
LOCAL: videoconferência na plataforma RNP (sala PEI-UFBA)
TITLE:

Statistical quality control applied to the cookie production.

KEY WORDS:

tatistical process control, quality control, control charts, fraction nonconforming, capability indexes, Taguchi loss function.

PAGES: 48
BIG AREA: Engenharias
AREA: Engenharia de Produção
SUMMARY:

The demand for food is growing in the world being driven by the increase in population. The food industry, more precisely the cookie manufacturing companies, are inserted in a market that generated 140 billion dollars in sales and grew 5.49% in 2020 (ABIA, 2020). To keep up with the growth of this increasingly competitive industrial sector, biscuit manufacturers need to apply quality tools to improve their processes. The main objective of this work was to evaluate the performance of the biscuit manufacturing process in a large food industry based on statistical quality control. Statistical quality control consisted of the following approaches: Stability Analysis; Capability Analysis and Process Quality Loss Analysis. Additionally, a comparative study was carried out with the control charts for the non-conforming fraction, analyzing their operational performance with the process data. In the stability analysis, the Control Charts for Attributes were used. In the capability analysis, capacity and performance indices were used, in addition to the analysis of the sigma level of the process. The quality loss analysis evaluated the process through the Taguchi loss function. The analyzes concluded that the process is stable, and can be characterized as a capable process (𝐶𝑝𝑘 > 1) with a sigma level of 3,89𝜎, in addition to presenting small losses in the process (k = R$2,04). The evaluation of the sigma level indicates that the process can improve to sigma level = 5,85𝜎 with actions only to centralize the process average to the target value, which would represent an improvement of 1,96𝜎.

BANKING MEMBERS:
Externo à Instituição - Osiris Canciglieri Junior - PUCPR
Presidente - 1429447 - ANGELO MARCIO OLIVEIRA SANT ANNA
Externa ao Programa - 1819552 - AVA SANTANA BARBOSA
Externo à Instituição - DANILO MARCONDES FILHO - UFRGS