Tribological Research of Properties of Heat – Treated Cast Irons with Globular Graphite

Abstract. As part of the quality of products, corrective actions are necessary. In this context, organizations should use different methods to skillfully analyze product incompatibilities and their causes. The aim of a study is to propose the method for determining the degree of impact of causes on the occurrence of incompatibilities. This method is a new combination of Grey Relational Analysis (GRA) with known methods: brainstorm, causes and effects diagram, and important technique. The method was tested for an example of a cast alloy product.

Section: Discussionmentioning

confidence: 99%

Improving the Quality of Products from Cast Alloy with the use of Grey Relational Analysis (GRA)

Siwiec

2022

“…The analysis presented in this paper may be useful in many areas of research (non-destructive testing [24], special alloys [25], implants [26], tribological tests [27], welding [28], and biotechnology [29]) and industrial production (special coatings [30,31], laser surface treatment [32,33], machine regeneration [34], power hydraulics [35], steel industry [36]), where failures and improper actions may appear and should be repaired by corrective activities. so the presented method may be inspiring for many recipients.…”

Section: Discussionmentioning

confidence: 99%

Analysis of the Causes of the Non-Conformity of the Bearing Shell Casting Used on Rail Vehicles

Pacana

2022

Abstract. Continuous improvement of the quality of manufactured products and monitoring of the production process is the key to the success of every company. Skillful use of available technologies and quality management instruments makes it possible to eliminate casting incompatibilities and prevent their recurrence in the future. The aim of the article was to analyze the types of defects occurring in castings, locate the areas with the most frequent occurrence of defects and identify the reasons for the presence of defects in castings of bearing housings used in railway vehicles. The paper presents the usefulness of a combination of quality management instruments for diagnosing material discontinuities in the analyzed castings.

“…The model presented in this paper may be useful in many areas of research (tribological tests [17], biotechnology [18], waste treatment [19][20][21]) and industrial production (special coatings [22], laser surface treatment [23,24], machine regeneration [25], power hydraulics [26]), where castings may appear as part of devices. Regardless, it is a development impulse both for the methods of experimental data analysis [27][28][29] and for the analysis of possible failure scenarios [40,41].…”

Section: Discussionmentioning

confidence: 99%

The Model for Analyzing and Improving Aluminum Castings

Czerwińska

2022

Abstract. The purpose of this study is to develop a model for the analysis and improvement of aluminum castings and to perform its test in the framework of verifying the quality of industrial robot arm parts, and then, determine the causes of potential and root causes of nonconformities, including proposing improvement actions in the production area. Aluminum castings have become the focus of research due to significant problems in maintaining their expected level of quality. The use of the model (consisting of eddy current testing and consecutive brainstorming sessions, Ishikawa diagram, and ABCD - Suzuki method) would contribute to the detection of the causes of nonconformities and consequently to the elimination of non-conforming products. The study demonstrates the desirability of using an integrated approach to solving quality problems. The actions taken were a new solution for the company, as no in-depth analysis of quality problems using a sequence of quality management techniques had been carried out before.