Titanlegierungen in der Luft‐ und Raumfahrt

Peters, M.; Kumpfert, J.; Leyens, Christoph

doi:10.1002/9783527611089.ch13

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Moreover, the chip formation process is characterized by the formation of segmented chips [33], which lead to a high dynamic tool load that cause chipping of the cutting edge [3,34]. Nevertheless, Ti-6Al-4V is the most widely used titanium alloy in the world, e.g., in the aerospace industry, because of its high tensile strength of over R m = 900 MPa in combination with a low density [35,36]. The chemical composition of both investigated workpiece materials are shown in Table 1.…”

Section: Toolsmentioning

confidence: 99%

A Novel Experimental Test Bench to Investigate the Effects of Cutting Fluids on the Frictional Conditions in Metal Cutting

Lakner

Hardt

2020

JMMP

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The tribological effect of cutting fluids in the machining processes to reduce the friction in the cutting zone is still widely unknown. Most test benches and procedures do not represent the contact conditions of machining processes adequately, especially for interrupted contacts. This results in a lack of knowledge of the tribological behavior in machining processes. To close this knowledge gap, a novel experimental test bench to investigate the effects of cutting fluids on the frictional conditions in metal cutting under high-pressure cutting fluid supply was developed and utilized within this work. The results show that there is a difference between the frictional forces in interrupted contact compared to continuous contact. Furthermore, the cutting fluid parameters of supply pressure, volumetric flow rate, and impact point of the cutting fluid jet influence the frictional forces, the intensities of which depend on the workpiece material. In conclusion, the novel test bench allows examining the frictional behavior in interrupted cuts with an unprecedented precision, which contributes to a knowledge-based design of the cutting fluid supply for cutting tools.

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Section: Toolsmentioning

confidence: 99%

A Novel Experimental Test Bench to Investigate the Effects of Cutting Fluids on the Frictional Conditions in Metal Cutting

Lakner

Hardt

2020

JMMP

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“…With development and improvement of machinery high-strength materials, which include titanium and its alloys, find wider use. Due to their high mechanical strength that remains at high temperatures, corrosion resistance, heat resistance, specific strength, low density and other useful properties, these alloys are widely implemented in different kinds of machinery and especially in aircraft, where a combination of a lighter structure with required strength is sought [1,2]. Titaniumbased materials are used for making aircraft skin, fixtures, framework, landing gear parts, different assemblies as well as individual heavy-loaded parts of aircraft, submarines, and sports cars [3,4].…”

Section: Introductionmentioning

confidence: 99%

Modernization of Electrode Composite Material Based on Copper Powder for Electrical Discharge Machining of High-Strength Alloys

Terentyev

Vladimirova

Shalunov

et al. 2022

KEM

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As a result of implemented modernization of known electrode composite material based on Cu-3% wt BN copper powder successfully used for electrical discharge machining of high-strength alloys, composite material (Cu - 3% wt BN) – 0.5 % wt Al – 0.25 % wt in the form of high-density long thin-wall plates for operations of electrical discharge cutting and piercing of hard-to-machine materials was obtained. The new material was obtained with the use of the method of reactionary mechanical alloying of initial powder components in the attritor. Tool electrodes made of the new material during electrical discharge piercing of rectangular holes in titanium alloy sheets ensure a 1.6 times higher machining rate comparing to tool electrodes made of the Cu-3% wt BN prototype material. After replacement of rolled copper in tool electrodes with the new composite material the machining rate will increase 4.1 times. The tool electrodes made of this material have significantly lower electrical discharge wear comparing to the wear of tool electrodes made of the prototype material and rolled copper.

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“…High strength at low density of selected aluminium alloys enables the construction of a variety of structural and planar components [1,2]. Aluminium parts used in such a way must bear high wear and oscillating mechanical loads during application.…”

Section: Introductionmentioning

confidence: 99%

“…In consideration of these results, a prototypic combined turn-rolling tool is developed Introduction Aluminium and its alloys are important construction materials for lightweight applications. High strength at low density of selected aluminium alloys enables the construction of a variety of structural and planar components [1,2]. Aluminium parts used in such a way must bear high wear and oscillating mechanical loads during application.…”

mentioning

confidence: 99%

Development of Combined Manufacturing Technologies for High-Strength Structural Components

Denkena

Breidenstein

León

et al. 2010

AMR

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Abstract. Novel manufacturing technologies for high-strength structural components of aluminium allow a local modification of material properties to respond to operational demands. Machining and finishing processes for changing material properties like deep rolling or rubbing are to be combined to a single process step. The intention is the controlled adjustment of the component's properties by the modification of its subsurface. For that purpose the essential understanding of the interaction mechanisms of the basic processes turning, deep rolling and rubbing is necessary. Influences of the tool geometry as well as of the process parameters on the material properties are investigated. The results will be extended by parameter studies within numerical simulations. Thereafter, combinations of the basic processes in process sequences are analyzed to their ability to modify the subsurface properties. In consideration of these results, a prototypic combined turn-rolling tool is developed Introduction Aluminium and its alloys are important construction materials for lightweight applications. High strength at low density of selected aluminium alloys enables the construction of a variety of structural and planar components [1,2]. Aluminium parts used in such a way must bear high wear and oscillating mechanical loads during application. In practice the most stressed regions in technical components are often found in the subsurface, e. g. by bending, torsion and corrosion loads. Therefore, the properties of the component's subsurface are of outstanding importance [3,4]. These properties are considerably influenced by the applied machining procedure. Different states of residual stress, hardness, surface roughness and microstructure can be realized. A controlled influence on the subsurface by the machining process can improve the component's properties and life cycle [5].

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Titanlegierungen in der Luft‐ und Raumfahrt

Cited by 6 publications

References 3 publications

A Novel Experimental Test Bench to Investigate the Effects of Cutting Fluids on the Frictional Conditions in Metal Cutting

A Novel Experimental Test Bench to Investigate the Effects of Cutting Fluids on the Frictional Conditions in Metal Cutting

Modernization of Electrode Composite Material Based on Copper Powder for Electrical Discharge Machining of High-Strength Alloys

Development of Combined Manufacturing Technologies for High-Strength Structural Components

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