Machining of High Strength Light Weight Alloys for Engine Applications

Weinert, Klaus; Biermann, Dirk; Bergmann, Stefan

doi:10.1016/j.cirp.2007.05.027

Cited by 43 publications

(15 citation statements)

References 7 publications

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“…As the inner wall diameter is of only φ76mm, it makes the size of the blind hole drilling devices more restricted, not only to achieve a compact overall structure, but also to ensure that the gear has sufficient strength [8]. Bevel gear drive process generally requires consideration of tooth contact fatigue strength and tooth root bending fatigue strength.…”

Section: The Structural Design Of the Blind Hole Drilling Devicementioning

confidence: 99%

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Research on the Inner Wall of the Blind Hole Drilling Device

Zhu¹,

Wei²

2014

TOMEJ

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This article describes the structure and working principle of the blind hole drilling device through application in the production practice proving its feasibility. At present, electrical discharge machining and welding method are commonly used to solve the problem. However, these methods have low processing efficiency, low manufacturing precision and high cost defect. This paper developed an inner wall of the blind hole drilling device, similar to stand-alone machine accessories and adopted the bevel gear transmission which can directly be mounted on vertical or horizontal milling machine, completing the processing operations in few minutes. This device not only has high processing efficiency and accuracy, but it also greatly reduces the production cost.

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Section: The Structural Design Of the Blind Hole Drilling Devicementioning

confidence: 99%

“…It is difficult to visually observe the cutting conditions but it is easy to block debris and knife fight [3].…”

Section: Introductionmentioning

confidence: 99%

Research on the Inner Wall of the Blind Hole Drilling Device

Zhu¹,

Wei²

2014

TOMEJ

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“…Increasing demands in the turbomachinery sector lead to further use of advanced materials with distinguished physical properties, resulting in high thermal and mechanical loads during machining [1][2][3]. A common task is the manufacture of complex geometrical features, that can be abstracted to notches or slots described by two or three boundaries, as they occur, for example, in the geometries of Blisks (blade integrated discs), single blades, and landing gears; see Figure 1.…”

Section: Applicationsmentioning

confidence: 99%

Integrated Approach for a Knowledge-Based Process Layout for Simultaneous 5-Axis Milling of Advanced Materials

Klocke

Bergs

Busch

et al. 2011

Advances in Tribology

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Advanced materials, like nickel-based alloys, gain importance in turbomachinery manufacturing, where creating complex surfaces constitute a major challenge. However, milling strategies that provide high material removal rates at acceptable tooling costs demand optimized tool geometry and process parameter selection. In this paper, a description of circular milling is given, focusing on resulting engagement conditions. Regarding this, a test bench was designed to investigate the chip formation process in an analogy milling process. Furthermore, the methodology for the approach in the analogy process was developed. Results of a first test run in Inconel 718 verify the presented approach.

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“…Another way is to reduce the weight of fast rotating turbine blades in aircraft engines. Beside the commonly used Ni-based superalloys γ − titanium aluminides offer the required high specific strength from room-temperature up to 1000°C [1,2]. With a specific weight of 3.8 g/cm³ compared to 8 g/cm³ of Ni-based superalloys the overall weight of the components could be reduced drastically.…”

Section: Introduction *mentioning

confidence: 99%

Development of a PIGE-Detection System for in-situ Inspection and Quality Assurance in the Evolution of Fast Rotating Parts in High Temperature Environment Manufactured from TiAl

et al. 2013

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Intermetallic γ-titanium aluminides are a promising material in high temperature technologies. Their high specific strength at temperatures above 700°C offers the possibility for their use as components of aerospace and automotive industries. With a specific weight of 50% of that of the widely used Ni-based superalloys TiAl is very suitable as material for fast rotating parts like turbine blades in aircraft engines and land based power stations or turbocharger rotors. Thus lower mechanical stresses and a reduced fuel consumption and CO 2 -emission are expected. To overcome the insufficient oxidation protection the halogen effect offers an innovative way. After surface doping using F-implantation or liquid phase-treatment with an F-containing solution and subsequent oxidation at high temperatures the formation of a protective alumina scale can be achieved. By using non-destructive ion beam analyses (PIGE, RBS) F was found at the metal/oxide interface. For analysis of large scale components a new vacuum chamber at the IKF was installed and became operative. With this prototype of in-situ quality assurance system for the F-doping of manufactured parts from TiAl some performance test measurements were done and presented in this paper.

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Machining of High Strength Light Weight Alloys for Engine Applications

Cited by 43 publications

References 7 publications

Research on the Inner Wall of the Blind Hole Drilling Device

Research on the Inner Wall of the Blind Hole Drilling Device

Integrated Approach for a Knowledge-Based Process Layout for Simultaneous 5-Axis Milling of Advanced Materials

Development of a PIGE-Detection System for in-situ Inspection and Quality Assurance in the Evolution of Fast Rotating Parts in High Temperature Environment Manufactured from TiAl

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