Influence of Temperature on Surface Integrity for Typical Machining Processes in Aero Engine Manufacture

Klocke, Fritz; Gierlings, Sascha; Brockmann, Matthias; Veselovac, D.

doi:10.1016/j.proeng.2011.11.102

Cited by 24 publications

(8 citation statements)

References 3 publications

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“…In addition, during internal broaching, it is difficult to visualize or monitor chip formation mechanisms, which makes it difficult to optimize. For these reasons, several authors have chosen to study external broaching machines with multiple teeth broaches (Figure 6), which enables the measurement of radial forces and allows clear access to the process for additional instrumentations, using devices such as high speed cameras, infrared cameras and pyrometers [4,5,42,47,67,79,104].…”

Section: Research Methodology and Case Studiesmentioning

confidence: 99%

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Broaching: Cutting tools and machine tools for manufacturing high quality features in components

Arrazola

Rech

M’Saoubi³

et al. 2020

CIRP Annals

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Section: Research Methodology and Case Studiesmentioning

confidence: 99%

“…There is a growing body of literature which suggests a prevailing trend: forces decrease with cutting speed, rake angle and by adding lubrication (mineral oils) [29,42,56,64,79]. This trend can be contradicted sometimes, when chip formation interacts with the tooling gullet volume, as reported by [27].…”

Section: Forcesmentioning

confidence: 99%

Broaching: Cutting tools and machine tools for manufacturing high quality features in components

Arrazola

Rech

M’Saoubi³

et al. 2020

CIRP Annals

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“…Many works have identified empirical models using an experimental setup close to an orthogonal cutting operation (Figure 3). 6–17 They model cutting and radial forces on the basis of equations (1) and (2), using the traditional specific cutting pressure k cc and the specific radial pressure k cr…”

Section: Introductionmentioning

confidence: 99%

Modelling of macroscopic cutting forces in internal broaching of an X12Cr13 stainless steel

Fabre

Bonnet

Mabrouki

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Broaching operations require stiff machine tools that have to withstand high cutting forces. This work aims to develop a methodology to predict the macroscopic cutting forces on a real, internal broaching operation comprising a large number of teeth. The macroscopic forces are estimated, based on the addition of local forces that are applied to each section and are simultaneously in contact with the broach. These local forces are calculated using a model of specific cutting pressure, depending on the rise per tooth. This study uses two methods to identify this specific cutting pressure model, that is, a direct approach based on orthogonal cutting tests and an inverse approach based on an instrumented broaching operation. It is shown that the direct method is effective in identifying a specific cutting pressure model and enables the prediction of macroscopic forces. Moreover, the direct approach provides more comprehensive results in terms of radial forces.

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“…Nickel-based alloys are widely used in aeroengine and gas turbine components, particularly in those exposed to high temperatures, such as turbine discs and fasteners. These components are often crucial to aeroengine and gas turbine machinery due to their extreme operating conditions, which are characterized by severe mechanical and thermal loads [1]. When manufacturing these components, rigorous and complex quality criteria, encompassing surface and subsurface quality, must be met for safety reasons.…”

Section: Introductionmentioning

confidence: 99%

Comparative Assessment of the Surface Integrity of AD730® and IN718 Superalloys in High-Speed Turning with a CBN Tool

Zhou

Chen

Persson

et al. 2019

JMMP

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Nickel-based superalloys are typical materials used in components of aeroengines and gas turbine machinery. The strength properties of these alloys at high temperatures are crucial not only to the performance (e.g., power generation efficiency, energy consumption, and greenhouse gas emissions) of aeroengines and industrial gas turbines, but also to machinability during component manufacturing. This study comparatively evaluated the surface integrity of two superalloys, AD730® and Inconel 718 (IN718), during high-speed finishing turning using cubic boron nitride (CBN) tools. IN718 is a conventional superalloy used for the hot section components of aeroengines and industrial gas turbines, while AD730® is a novel superalloy with enhanced high-temperature mechanical properties and good potential as a next-generation superalloy for these components. High-speed turning tests of two superalloys were conducted using a CBN cutting tool and jet stream cooling. The achieved surface integrity of the AD730® and IN718 superalloys was characterized and analyzed to assess the comparability of these alloys.

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Influence of Temperature on Surface Integrity for Typical Machining Processes in Aero Engine Manufacture

Cited by 24 publications

References 3 publications

Broaching: Cutting tools and machine tools for manufacturing high quality features in components

Broaching: Cutting tools and machine tools for manufacturing high quality features in components

Modelling of macroscopic cutting forces in internal broaching of an X12Cr13 stainless steel

Comparative Assessment of the Surface Integrity of AD730® and IN718 Superalloys in High-Speed Turning with a CBN Tool

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