Application of Non-Destructive Methods to Quality Assessment of Pattern Assembly and Ceramic Mould in the Investment Casting Elements of Aircraft Engines/ Zastosowanie Nieniszczących Metod Do Oceny Jakości Woskowych Zestawów Modelowych Oraz Ceramicznych Form W Procesie Odlewania Precyzyjnego Elementów Silników Lotniczych

Abstract

The aim of this paper is manufacturing of turbocharger engine jet blades made of nickel superalloys. Processes for producing molds and casting realized in a production line are special processes. It means that the results are known only after inspection of the finished product. There is lack of the methods and techniques of effective and efficient quality control of the work in stock, above all molds. Therefore, the unknown is the state ceramic mold for the precision casting, which resulting in risk of referral to a defective mold of the casting process and thus give the product does not comply, is eliminated in the final inspection.One method of reducing this risk is particularly thorough monitoring of all parameters of each process and keeping them in the desired operating point. Operating point is a set of parameters of processes. Such monitoring is possible with the commitment to the methods and techniques to automatically, without human intervention, data collection and processing methods appropriate for use in operational control.The paper presents results of research on the attitude to the problem of a special process. This change is the introduction to the process efficient and effective form of quality control tools in the course of its preparation. In this case, the method of photogrammetry, thermal imaging and computed tomography were used.With the infrared camera will be possible to determine the temperature field, the disorder in relation to the pattern indicates the type of defect. Computed tomography and will be used to develop patterns of correlated defects associated with thermal imagers. Photogrammetry is the use of a model set of quality control (comparison of the actual state of the model *.CAD). It also allows the designation of a wall thickness of the mold.Keywords: special process, investment casting, turbine blades, 3D scan, thermovision, computed tomographyReferat dotyczy procesu wytwarzania łopatek turbosprężarek silników odrzutowych wykonanych z nadstopów niklu. Procesy wytwarzania form i odlewania, realizowane w linii technologicznej są procesami specjalnymi. Oznacza to, że ich wyniki są znane dopiero po kontroli wyrobu gotowego. Brak jest, bowiem metod i technik efektywnej i skutecznej kontroli jakości półproduktu, przede wszystkim formy. Tym samym nieznany jest stan formy przeznaczanej do odlewania, co skutkuje ryzykiem skierowania do procesu odlewania wadliwej formy i tym samym wytworzeniem wyrobu niezgodnego, eliminowanego dopiero podczas końcowej kontroli odbiorczej.Jedną z metod zmniejszania tego typu ryzyka jest szczególnie gruntowne nadzorowanie wszystkich parametrów poszczególnych procesów i utrzymanie ich w wybranym punkcie pracy. Punkt pracy jest zbiorem parametrów realizacji procesów. Takie nadzorowanie jest możliwe w przypadku zaangażowania do tego celu metod i technik automatycznego, bez udziału człowieka, zbierania danych oraz metod właściwego ich przetwarzania na użytek operacyjnego sterowania.W artykule przedstawiono wyniki badań nad zmianą podejścia do problemu proce...

Analysis of the Temperature Distribution on the Surface of Saddle-Shaped Briquettes Consolidated in the Roller Press

“…Thermal phenomena are a rich source of information about technological processes and changes or irregularities occurring during them [36], which allows for the control of process parameters and the necessary modification. Thermography was used, among others, to control the stability of the extrusion process of poly (vinyl chloride) [37], textiles [38][39][40], tire vulcanization [41], production of casting molds [42], the process of casting and cooling steel [43] iron ores (with biomass) [44], the quality of moldings made of loose materials (microcrystalline cellulose) leaving the compaction zone [45], and even in the process of cooling of natural rock materials [46]. Another field of application for thermography has become research on materials and their structure [45,47].…”

Laser Scanner-Based 3D Digitization for the Reflective Shape Measurement of a Parabolic Trough Collector

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“…The mirror deflects the laser beam on a vertical rotation around the environment to be scanned ( Figure 1b) and the scattered light from surrounding objects is then reflected back to the scanner. dyes for the automotive industry [20], aerospace industry [21], consumer and medical product design [19,22], and general quality control procedures [23].…”

The Thermographic Analysis of the Agglomeration Process in the Roller Press of Pillow-Shaped Briquettes

“…For example, thermography was used, among other methods, to control the stability of the extrusion process of poly(vinyl chloride) [37]. Moreover, it has been used in textiles [38,39], tire vulcanization [40], the production of casting molds [41], the process of casting and cooling steel [42], and finally in sintering iron ores (with biomass) [43]. In one of the most recent studies concerning the wearing of the ploughshare material on the raking face when it operates in soil, the temperature distribution on the tool during this task was checked.…”