A review on laser beam welding of titanium alloys

Auwal, S. T.; Ramesh, S.; Yusof, Farazila; Manladan, Sunusi Marwana

doi:10.1007/s00170-018-2030-x

Cited by 119 publications

(44 citation statements)

References 201 publications

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“…In the metal welding process, two or more pieces of metal welded together to form a welded joint which consists of base metal, weld metal, fusion zone and heat affected zone [15,21]. The welding process at the joint is a series of complicated processes such as local heating, metal melting and solidification, therefore, the welded joint is a region with heterogeneous ingredients, organization and mechanical properties [22,23].…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, a bench-scale laboratory test was implemented on a double-loop cerclage wire with fiber-laser welding on the lap joint as shown in Figure 3a. In this preliminary study, the laser welding experiments were conducted to determine the laser parameters for controlling the weld profile [20,21] on the lap joint which has a wire diameter of 1.6 mm, as shown in Figure 3b. laser welding can be used in medicate and treat the patients without the risk of thermal effect to occur on the bone and surrounding tissues.…”

Section: Appl Sci 2019 9 X For Peer Review 2 Of 14mentioning

confidence: 99%

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Laser Welding on Cerclage Wire Joining in Femur Surgery

2020

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Stainless steel wires with fiber-laser welding on lap joints are first proposed in this study to be used as cerclage wire joints for modern femur surgery, because of their potentially larger joint strength and less loosening failure than traditional joint devices. In this feasibility study, an experiment was set up to determine adequate parameters for the laser welding process in order to ensure that the wire joint of cerclage has good weld appearance, free oxidation, and suitable joint strength. A stainless steel wire 316L with a diameter of 1.6 mm, flare-welded on lap joint was used in the experiment as a specimen cerclage wire joint. Two major effective parameters were chosen for controlling a suitable fusion weld, including charge voltage and multiple frequencies of the laser irradiation. The adequate area of the laser parameters was determined from the experiment, including the ranges of charge voltage, multiple frequencies, and pulse width. The suitable welded lengths of specimens were also studied in the mechanical test to validate the joint strength. Suggested welded length has a better tensile strength than traditional cerclage joints. The paper concludes that the stainless wire joints with a fiber laser weld represents a promising alternative to traditional cerclage joint devices for modern femur surgery.

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Section: Methodsmentioning

confidence: 99%

Section: Appl Sci 2019 9 X For Peer Review 2 Of 14mentioning

confidence: 99%

Laser Welding on Cerclage Wire Joining in Femur Surgery

2020

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“…Moreover, the capital cost of laser welding is significantly higher than the traditional fusion processes although it can be compensated with high and excellent joint quality. Under optimized processing conditions, the static strength of the laser-welded titanium alloy samples can be close to the original material; however, there are still some processing problems such as lower elongation and corrosion resistance coupled with inferior fatigue properties [4]. The microstructures of α + β titanium alloys play an important role in determining the mechanical properties and fracture behavior of these materials [5].…”

Section: Introductionmentioning

confidence: 99%

Modelling of Welding Parameters on Bead Geometry in Nd: Yag Laser Welding of Titanium With Ti-6al-7nb Using Response Surface (Rsm)

2020

jcr

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Pulsed laser welding is a powerful technique especially suitable for joining thin sheet metals. In this study, based on experimental data, pulsed laser welding of thin Cp-Ti and Ti-6Al-7Nb sheets has been optimized. The experimental data required for modeling are gathered as per Central Composite Design matrix in Response Surface Methodology (RSM) with full replication of 30 runs. Response Surface Methodology is used to investigate the effect of four input variables, namely: type of workpiece (WP), pulse energy (PE), pulse duration (Ton), welding speed (WS) and on the depth of penetration and bead width in YAG laser welding process.To study the proposed second-order polynomial model for DOP and BW, a Central Composite Design is used for estimating the model coefficients of the four input factors on DOP and BW. Experiments were conducted on Cp-Ti alloy with Ti-6Al-7Nb alloy. The significant coefficients are obtained by performing an Analysis of Variance at the 5 % level of significance. The results revealed that DOP and BW are more influenced by type of workpiece, pulse energy, pulse duration, welding speed and few of their interactions. A mathematical regression model was developed to predict both of DOP and BW in YAG laser welding. Also, the developed model could be used for the selection of the levels in this process for saving in welding time.

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“…This recently introduced RHEA [33] had a low density of 6.17 g/cm 3 and can be cold rolled to a high thickness reduction. The LBW technique was previously used successfully to join Ti alloys [34][35][36][37][38][39], and therefore, can be considered a proper welding method for the program Ti-rich RHEA.…”

Section: Introductionmentioning

confidence: 99%

Laser Beam Welding of a Low Density Refractory High Entropy Alloy

Panina

Yurchenko

Zherebtsov

et al. 2019

Metals

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The effect of laser beam welding on the structure and properties of a Ti1.89NbCrV0.56 refractory high entropy alloy was studied. In particular, the effect of different pre-heating temperatures was examined. Due to the low ductility of the material, laser beam welding at room temperature resulted in the formations of hot cracks. Sound butt joints without cracks were produced using pre-heating to T ≥ 600 °C. In the initial as-cast condition, the alloy consisted of coarse bcc grains with a small amount of lens-shaped C15 Laves phase particles. A columnar microstructure was formed in the welds; the thickness of the grains increased with the temperature of pre-heating before welding. The Laves phase particles were formed in the seams after welding at 600 °C or 800 °C, however, these particles were not observed after welding at room temperature or at 400 °C. Soaking at elevated temperatures did not change the microstructure of the base material considerably, however, “additional” small Laves particles formed at 600 °C or 800 °C. Tensile test of welded specimens performed at 750 °C resulted in the fracture of the base material because of the higher hardness of the welds. The latter can be associated with the bcc grains refinement in the seams.

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A review on laser beam welding of titanium alloys

Cited by 119 publications

References 201 publications

Laser Welding on Cerclage Wire Joining in Femur Surgery

Laser Welding on Cerclage Wire Joining in Femur Surgery

Modelling of Welding Parameters on Bead Geometry in Nd: Yag Laser Welding of Titanium With Ti-6al-7nb Using Response Surface (Rsm)

Laser Beam Welding of a Low Density Refractory High Entropy Alloy

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