Effective solution for the tribological problems of Ti-6Al-4V: Combination of laser surface texturing and solid lubricant film

Hu, Tianchang; Hu, Litian; Ding, Qi

doi:10.1016/j.surfcoat.2012.06.014

Cited by 152 publications

(54 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hu et al [44] studied how laser texturing of Ti6Al4V affected its tribological behavior. Titanium and its alloys have industrial and biomedical applications because of their excellent mechanical and chemical properties.…”

Section: Direct Laser Metal Depositionmentioning

confidence: 99%

Influence of Rapid Solidification on the Thermophysical and Fatigue Properties of Laser Additive Manufactured Ti-6Al-4V Alloy

Fatoba¹,

Akinlabi²,

Makhatha³

2017

Aluminium Alloys - Recent Trends in Processing, Characterization, Mechanical Behavior and Applications

View full text Add to dashboard Cite

Modern industrial applications require materials with special surface properties such as high hardness, wear and corrosion resistance. The performance of material surface under wear and corrosion environments cannot be fulfilled by the conventional surface modifications and coatings. Therefore, different industrial sectors need an alternative technique for enhanced surface properties. The purpose of this is to change or enhance inherent properties of the materials to create new products or improve on existing ones. The most effective and economical engineering solution to prevent or minimize such surface region of a component is done by fiber lasers. Additive manufacturing (AM) is a breaking edge fabrication technique with the possibility of changing the perception of design and manufacturing as a whole. It is well suitable for the building and repairing applications in the aerospace industry which usually requires high level of accuracy and customization of parts which usually employ materials known to pose difficulties in fabrication such as titanium alloys. The current development focus of AM is to produce complex shaped functional metallic components, including metals, alloys and metal matrix composites (MMCs), to meet demanding requirements from aerospace, defense, and automotive industries.

show abstract

Section: Direct Laser Metal Depositionmentioning

confidence: 99%

Influence of Rapid Solidification on the Thermophysical and Fatigue Properties of Laser Additive Manufactured Ti-6Al-4V Alloy

Fatoba¹,

Akinlabi²,

Makhatha³

2017

Aluminium Alloys - Recent Trends in Processing, Characterization, Mechanical Behavior and Applications

View full text Add to dashboard Cite

show abstract

“…The machinability is defined by an absorption capacity, reflectance and thermal conductivity of material [26,27]. It is possible to machine various types of metals [23,28], ceramics [29], glass [30], semiconductor materials [31], polymers [32], diamond [33], mineral and composite materials [34][35][36][37], as well as a biocompatible materials [38,39] and biomaterials (hydroxyapatite, bones and tissues) [40].…”

Section: Introductionmentioning

confidence: 99%

Laser surface texturing of tool steel: textured surfaces quality evaluation

2016

View full text Add to dashboard Cite

Abstract:In this experimental investigation the laser surface texturing of tool steel of type 90MnCrV8 has been conducted. The 5-axis highly dynamic laser precision machining centre Lasertec 80 Shape equipped with the nano-second pulsed ytterbium fibre laser and CNC system Siemens 840 D was used. The planar and spherical surfaces first prepared by turning have been textured. The regular array of spherical and ellipsoidal dimples with a different dimensions and different surface density has been created. Laser surface texturing has been realized under different combinations of process parameters: pulse frequency, pulse energy and laser beam scanning speed. The morphological characterization of ablated surfaces has been performed using scanning electron microscopy (SEM) technique. The results show limited possibility of ns pulse fibre laser application to generate different surface structures for tribological modification of metallic materials. These structures were obtained by varying the processing conditions between surface ablation, to surface remelting. In all cases the areas of molten material and re-cast layers were observed on the bottom and walls of the dimples. Beside the influence of laser beam parameters on the machined surface quality during laser machining of regular hemispherical and elipsoidal dimple texture on parabolic and hemispherical surfaces has been studied.

show abstract

“…The corresponding mathematical expressions of wrinkling deflection can be obtained in (10) and (11). …”

Section: Mechanics Analysis and Boundary Conditionsmentioning

confidence: 99%

“…Tribology in hot stamping of aluminium alloys can be improved through surface treatments, such as the application of coatings and textures, which can reduce friction coefficient directly and indirectly [10][11]. Costa and Hutchings [12][13] found that friction was significantly reduced through the use of patterned tool surfaces in strip drawing processes, where these grooves were believed to act as lubricant reservoirs to enhance the lubrication effect.…”

Section: Introductionmentioning

confidence: 99%

A study on the buckling behaviour of aluminium alloy sheet in deep drawing with macro-textured blankholder

Zheng

Politis

Lin

et al. 2016

International Journal of Mechanical Sciences

View full text Add to dashboard Cite

In this paper an experimental, numerical and analytical investigation is presented of the wrinkling behaviour that occurs in the flange of deep drawn cylindrical cups of aluminium alloy sheet using macro-textured blankholder surfaces. A series of deep drawing experiments were performed using a range of tool textures, draw ratios and blank-holding forces. A numerical material and process model was formulated to enable the occurrence of wrinkling to be simulated. In addition, two analytical buckling models of aluminium alloy sheet in deep drawing with macro-textured blankholder based on the energy method, (namely a one-dimensional and two-dimensional model) were developed for the first-time and utilised to predict the effect of process parameters on wrinkling.The analytical buckling models investigated two boundary conditions, hinged and built-in boundary condition. It was found that texture geometry and draw ratio had a significant effect on wrinkling but the blank-holding force did not. The analytical models developed in this paper to represent sheet metal wrinkling behaviour for the macro-textured tools can be used as a design guide to determine the geometry of tool textures necessary to avoid wrinkling defects in aluminium alloy stamping processes.

show abstract

Effective solution for the tribological problems of Ti-6Al-4V: Combination of laser surface texturing and solid lubricant film

Cited by 152 publications

References 25 publications

Influence of Rapid Solidification on the Thermophysical and Fatigue Properties of Laser Additive Manufactured Ti-6Al-4V Alloy

Influence of Rapid Solidification on the Thermophysical and Fatigue Properties of Laser Additive Manufactured Ti-6Al-4V Alloy

Laser surface texturing of tool steel: textured surfaces quality evaluation

A study on the buckling behaviour of aluminium alloy sheet in deep drawing with macro-textured blankholder

Contact Info

Product

Resources

About