Publication detail

Some possibilities of using statistical methods while solving poor quality production

LAKOMÁ, R. ČAMEK, L. LICHÝ, P. IVANA, K. FILIP, R. TOMÁŠ, O.

English title

Some possibilities of using statistical methods while solving poor quality production

Type

journal article in Web of Science

Language

en

Original abstract

This paper presents an overview of a research on six practical cases that were solved in a precise casting company where parts are cast by the mean of the low-wax casting method (investment casting) in order to decrease poor quality production. The steel cast parts production technology by the lost-wax method requires the detailed work procedures observation. On the base of statistical processing data of given types of casting products, it was possible to assess the significance of each particular checking events by using the statistical hypothesis testing. The attention was focused on wax and ceramic departments. The data in technological flow were compared before and after the implementation of the change and statistical confirmative influences were assessed. The target consisted in setting such control manners in order to get the right conditions for decreasing poor quality parts. It was evidenced that the cast part defect cause correct identification and interpretation is important.

English abstract

This paper presents an overview of a research on six practical cases that were solved in a precise casting company where parts are cast by the mean of the low-wax casting method (investment casting) in order to decrease poor quality production. The steel cast parts production technology by the lost-wax method requires the detailed work procedures observation. On the base of statistical processing data of given types of casting products, it was possible to assess the significance of each particular checking events by using the statistical hypothesis testing. The attention was focused on wax and ceramic departments. The data in technological flow were compared before and after the implementation of the change and statistical confirmative influences were assessed. The target consisted in setting such control manners in order to get the right conditions for decreasing poor quality parts. It was evidenced that the cast part defect cause correct identification and interpretation is important.

Keywords in English

Poor qualityStatistical hypothesisProduction processInvestment castingWax pattern

Released

26.04.2021

Publisher

POLSKA AKAD NAUK, POLISH ACAD SCIENCESPL DEFILAD 1, WARSZAWA 00-901, POLAND

Location

Poland

ISSN

2299-2944

Volume

21

Number

1

Pages from–to

18–22

Pages count

5

BIBTEX


@article{BUT177395,
  author="Renata {Lakomá} and Libor {Čamek} and Petr {Lichý} and Koupová {Ivana} and Radkovský {Filip} and Obzina {Tomáš},
  title="Some possibilities of using statistical methods while solving poor quality production",
  year="2021",
  volume="21",
  number="1",
  month="April",
  pages="18--22",
  publisher="POLSKA AKAD NAUK, POLISH ACAD SCIENCESPL DEFILAD 1, WARSZAWA 00-901, POLAND",
  address="Poland",
  issn="2299-2944"
}