Browsing by Subject "SPC"

Now showing 1 - 16 of 16

Access status: Open Access ,
A SPC strategy for decision making in manufacturing processes
(AGH University of Science and Technology Press, 2019) Gil Del Val, Alain; Sawik, Bartosz; Alba, Maria Agustín Martin; Faulin, Javier; Diéguez-Elizondo, Pedro María
Tapping is an extensively employed manufacturing process by which a multi-teeth tool, known as a tap, cuts a mating thread when driven into a hole. When taps are new or slightly worn, the process is under control and the geometry of the resulting threads on the workpiece is correct. But as the tap wear increases, the thread geometry deviates progressively from the correct one and eventually the screw threads become unacceptable. The aim of this paper is to outline the development of a statistical process control strategy for decision making based on data coming from the current signal of the tap spindle for assessing thread quality. It could operate on line, and indicates when the tap wear is so critical that, if the process were continued, it would result in unacceptable screw threads. The system would be very cost-effective since the tapping process could be run without any operator intervention.
Access status: Restricted ,
Analiza i ocena stabilności wytopu gąsek aluminiowych za pomocą systemu SPC
(Data obrony: 2019-02-05) Żarski, Szymon
Wydział Odlewnictwa
Access status: Restricted ,
Analiza wykorzystania narzędzi statystycznego sterowania procesem na przykładzie firmy z branży motoryzacyjnej
(Data obrony: 2019-12-09) Ziemlewicz, Ewa
Wydział Zarządzania
Access status: Open Access ,
Application of Basic Machine-Learning Classifiers for Automatic Anomaly Detection in Shewhart Control Charts
(Wydawnictwa AGH, 2024) Woźniak, Aleksander; Krawiec, Klaudia; Książek, Roger
In today’s dynamic technological environment, innovation plays a crucial role – especially for manufacturing enterprises that constantly strive to improve the quality of their products. This article examines the quality-management issue in a company producing car rims. It was identified that real-time quality control can sometimes be unreliable due to controller fatigue, leading to erroneous data interpretation or delayed responses to deviations in the production process. The study aimed to investigate the possibility of eliminating or significantly reducing these errors by employing a tool that is based on artificial intelligence. The article covers the preparation of training data, the training of classifiers, and the evaluation of their effectiveness in analyzing control charts in real time. The adopted hypothesis assumes that machine-learning classifiers can be effective methods of support for quality controllers. The research began with collecting measurement data from the machine and dividing it into training and test sets. The obtained results were evaluated using standard quality measures for machine-learning models. The results showed that the use of artificial intelligence can bring significant benefits in improving quality supervision in the production process of car rims.
Access status: Restricted ,
Badanie i ocena jakości odlewów ze stopu EN AC 46000 po precyzyjnej obróbce mechanicznej w zrobotyzowanych gniazdach centr obróbczych
(Data obrony: 2019-02-05) Król, Kamil
Wydział Odlewnictwa
Access status: Open Access ,
Influence of measurement system quality on the evaluation of process capability indices
(2012) Czarski, Andrzej; Matusiewicz, Piotr
Among statistical instruments of quality Statistical Process Control (SPC) and Measurement Systems Analysis (MSA) take particular place. The proper quality of measurement data - verification and assurance of this quality are the task of MSA - guarantees an opportunity to carry out a solid SPC analysis supplying information about a process behavior. One of the principal tasks of SPC is estimation of capability of a process i.e. the assessment of process potential as for variability regarding expectations defined by specification limits. Data for analysis of a process capability are the results of measurements made by means of a determined measurement system. The variability of this measurement system must influence the results of capability assessment, however the measurement system adequate to control the process should guarantee that the impact is little enough to be omitted. The subject of the work is the analysis of influence of measurement system variability on evaluation of process capability indices. The mutual relations between process variability and measurement system variability present analytical relationships and experimental research given in the work. The aim of the tests was an assessment of a capability of the process of steel drop forgings' heat treatment relating to a hardness. The methodology demonstrated in the work is valid quality standards compatible (ISO 9000, ISO/TS 16949 etc.).
Access status: Restricted ,
Metody wyznaczania zdolności jakościowej procesu
(Data obrony: 2019-12-04) Mrózek, Agnieszka
Wydział Inżynierii Metali i Informatyki Przemysłowej
Access status: Restricted ,
Monitorowanie własności mechanicznych surowców wykorzystywanych do produkcji stalowych kształtowników konstrukcyjnych przy zastosowaniu metody statystycznego sterowania procesem (SPC).
(Data obrony: 2018-07-09) Skoczyński, Paweł
Wydział Zarządzania
Access status: Restricted ,
Projekt wprowadzenia narzędzi Lean Manufacturing w przedsiębiorstwie produkcyjnym
(Data obrony: 2021-01-20) Głód, Karolina
Wydział Zarządzania
Access status: Restricted ,
SPC jako narzędzie poprawy jakości w zrobotyzowanych centrach obróbczych
(Data obrony: 2020-01-24) Milewska, Ewelina
Wydział Odlewnictwa
Access status: Restricted ,
Statystyczne sterowaniem procesem na przykładzie firmy z branży motoryzacyjnej.
(Data obrony: 2018-07-06) Micuła, Michał
Wydział Zarządzania
Access status: Restricted ,
Wdrożenie systemu kontroli jakości na stanowisku badań RTG w odlewni aluminium
(Data obrony: 2020-01-24) Kosińska, Justyna
Wydział Odlewnictwa
Access status: Restricted ,
Wykorzystanie metod statystycznego sterowania procesem w gospodarce magazynowej
(Data obrony: 2018-10-25) Wnęczak, Klaudia
Wydział Zarządzania
Access status: Restricted ,
Wykorzystanie narzędzi SPC do monitorowania procesów produkcyjnych
(Data obrony: 2020-06-16) Skrzynecka, Jowita
Wydział Metali Nieżelaznych
Access status: Restricted ,
Wykorzystanie statycznej kontroli procesu w branży motoryzacyjnej
(Data obrony: 2019-09-27) Paw, Magdalena
Wydział Zarządzania
Access status: Restricted ,
Zastosowanie metod statystycznego sterowania procesem SPC dla produkcji mastyki w przemyśle samochodowym
(Data obrony: 2018-10-15) Kowalski, Patryk
Wydział Zarządzania