Statistical Process Control Charts Applied to Rock Disintegration Quality Improvement

Abstract

At present, ever higher demands are placed on the quality of products. The success of organizations in the global market depends mainly on measuring and evaluating their products quality. A set of measurable criteria usually determines product quality. There are many technological processes in the structure of a production organization that is statistically unstable. The norms of ISO class 9000 emphasize statistical process control, known as SPC (Statistical Process Control). They represent a methodology for eliminating the causes of instability of production or technological process. The paper deals with the application of control charts for the technological process of rock disintegration by rotary drilling. The measured values of the dynamic system drilling tool-rock in working mode are processed. The control charts are applied to the input (control) variables of the pressure force-F (N), revolutions-n (rpm), and the output measured variable of the vibration signal of the acceleration. The article constructs and presents the resulting important control charts for the technological process of rock disintegration by rotary drilling. It is essential that for the technological process of rock drilling, the variables that enter and exit the dynamic system must be statistically manageable. The stable state of the input technical parameters (revolutions and pressure force) of the drilling tool is essential from the technological, performance, and economic point of view. The stable state of the output parameters is of significant importance in preventing the emergency state, excessive wear of the drilling equipment and optimizing the optimal operating mode. Industrial practice points out that the correct application of statistical regulation stabilizes the technological process, increasing the quality and productivity of work.

Carta de controle: uma revisão sistemática da literatura

“…No entanto, outros objetivos tem sido considerados, tais como detectar erros (ALBERS, 2012;ARFAN et al, 2020;CHARISTA et al, 2020;DENG et al, 2018;FLEGNER et al, 2020;JIN et al, 2020;LIAO et al, 2020;SANCHIS et al, 2018;SIKA et al, 2017); avaliar o desempenho (JIN et al, 2020); analisar a qualidade (KHAN et al, 2018;ZABIHINPOUR et al, 2014); analisar riscos (MEHMOOD et al, 2020); visualizar as tendências do processo (ROY et al, 2020); analisar não conformidades (BERK et al, 2019); e identificar eventos raros (NATHANSON et al, 2010).…”

“…A carta de controle é uma ferramenta básica do controle estatístico usada para detectar um sinal fora de controle no CEP com a exibição gráfica de uma característica de qualidade que foi medida ou calculada, e para acompanhar características de um processo ou produto por meio do monitoramento de mudanças estatísticas de uma amostra, retirada em intervalos de tempos definidos (FLEGNER et al, 2020;HASHIM et al, 2020;SIKA et al, 2017;ZABIHINPOUR et al, 2014).…”

Customer Knowledge Management in Enterprise Software Development Companies: Organizational, Human and Technological Perspective

“…Ignoring the utilization of CK in several firms [21,22,23], an inadequate theoretical framework for CKM antecedent factors and a lack of comprehensive theoretical framework for CKM effects on software quality in enterprise software development reflect a fundamental need for further exploration [1,3,9,24,25]. Most software companies in this study are Small Management Systems in Production Engineering 2022, Volume 30, Issue 4 and Medium Enterprises (SMEs) [20,24,25,26,27,28,29,30]. SMEs face resource constraints [1,4,6,31].…”

Enhancing Control: Unveiling the Performance of Poisson EWMA Charts through Simulation with Poisson Mixture DATA

“…Control charts are one of the most important Statistical Process Control (SPC) techniques used to diagnose and prevent problems in production and service processes such as production, maintenance, healthcare [1][2][3][4][5]. Control charts allow users to quickly identify assignable causes and implement necessary solutions.…”