Productivity and reliability improvement in turning Inconel 718 alloy : case study

• Autorzy: Zębala W. , Słodki B. , Struzikiewicz G.

Warianty tytułu

PL

Poprawa produktywności i niezawodności toczenia stopu Inconel 718 : studium przypadku

• Języki publikacji: EN PL

Abstrakty

EN

The paper presents an investigation of Inconel 718 alloy finishing turning, using a procedure that allows the optimal cutting data to be found with a maximization of the metal removal rate as the optimization criterion. The optimization procedure does not allow the required values of the chosen surface roughness indicator, cutting force and cutting tool wedge temperature to be exceeded at the same time. The optimization procedure includes the preliminary cutting tests for establishing the range of cutting data (feed and depth of cut) for the correct chip breaking as well as research concerning micro-hardness measurements which enables the cold work zone to be determined and the minimal value of the feed to be defined. The functionality of the algorithm was verified by using the improvement in machining productivity and reliability of an aircraft engine element as an example.

PL

Artykuł opisuje badania obróbki wykończeniowej toczeniem stopu Inconel 718, mające na celu optymalizację parametrów skrawania z uwzględnieniem maksymalizacji objętościowej wydajności obróbki, jako kryterium optymalizacyjnego. Proponowana procedura uwzględnia wymagane w procesie ograniczenia dotyczące wartości parametru chropowatości obrabianej powierzchni, siły skrawania oraz maksymalnej temperatury w strefie skrawania. Procedura optymalizacyjna zawiera wstępne testy mające na celu ustalenie w lokalnych warunkach obróbki użytecznego zakresu parametrów skrawania (posuwu i głębokości skrawania) dla otrzymania korzystnej postaci wiórów. Wykonane pomiary mikrotwardości w strefie skrawania umożliwiły określenie wielkości strefy zgniotu warstwy wierzchniej, co z kolei pozwoliło na zdefiniowanie minimalnej wartości posuwu. Procedurę optymalizacyjną zweryfikowano na przykładzie obróbki wybranej powierzchni elementu silnika lotniczego. Osiągnięto znaczną poprawę produktywności i niezawodności procesu obróbki.

Słowa kluczowe

EN

Inconel; turning; productivity; optimization; parameters; micro-hardness

PL

Inconel; toczenie; produktywność; optymalizacja; parametry; mikrotwardość

• Wydawca: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
• Czasopismo: Eksploatacja i Niezawodność
• Rocznik: 2013
• Tom: Vol. 15, no. 4
• Strony: 421--426
• Opis fizyczny: Bibliogr. 37 poz., rys., tab.

Twórcy

autor

Zębala W.

• Production Engineering Institute, Mechanical Faculty Cracow University of Technology Al. Jana Pawła II 37, 31-864 Kraków, Poland

autor

Słodki B.

• Production Engineering Institute, Mechanical Faculty Cracow University of Technology Al. Jana Pawła II 37, 31-864 Kraków, Poland

autor

Struzikiewicz G.

• Production Engineering Institute, Mechanical Faculty Cracow University of Technology Al. Jana Pawła II 37, 31-864 Kraków, Poland

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