Machinability of Stellite 6 hardfacing

Benghersallah, Mohieddine; Boulanouar, Lakhdar; Coz, Gaël Le; Devillez, Arnaud; Dudzinski, D.

doi:10.1051/epjconf/20100602001

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…They observed differentiations in tool wear, cutting forces and chip forms [5]. Benghersallah et al [6] investigated the machinability of cobaltbased alloy Stellite 6 using square cutting tools such as 1030, H13 A, 3040, 4242 and 4030 produced by SANDVIK. As a result, they determined that the machinability of the super alloy was though difficult but possible [6].…”

Section: Introductionmentioning

confidence: 99%

The Analysis of Process Parameters for Turning Cobalt-Based Super Alloy Haynes 25 / L 605 Using Design of Experiment

Sarıkaya

Güllü

2015

SSP

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Haynes-25 alloy (also known as L-605 alloy) is extensively used in the applications of aerospace industry, turbine and furnace parts, power generators and heat exchangers and petroleum refining components due to its excellent properties. However, machining this alloy is more difficult compared to normal steel or even stainless one because of its characteristics of hardness and strength. This paper presents experimental investigation into machining parameters in the turning process of Haynes 25 alloy using uncoated carbide tools. Design of experiment (DOE) has been used for studying the effect of the main turning parameters such as cooling condition, cutting speed and feed rate on the arithmetic average surface roughness (Ra) of Haynes-25 alloy. Tests are designed according to Taguchi’s orthogonal array. Experiments have been performed under dry cutting and conventional wet cooling. Minimum surface roughness was obtained in turning using uncoated tools under wet cooling condition at the cutting speed of 45 m/min and feed rate of 0.12 mm/rev.

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Section: Introductionmentioning

confidence: 99%

The Analysis of Process Parameters for Turning Cobalt-Based Super Alloy Haynes 25 / L 605 Using Design of Experiment

Sarıkaya

Güllü

2015

SSP

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“…For the machinability of tooling materials, Co-Cr-Mobased alloys, also known as Stellite, are included in the group of difficult-to-cut materials. Stellites are designed to produce hard and thick coatings, and their use is recommended for forging die mold coatings owing to a high resistance to abrasive wear and toughness [81]. However, cobalt-based alloys also have high hardness, a dense but non-homogeneous structure, and low thermal conductivity, which lead to poor machinability [82].…”

Section: Machinabilitymentioning

confidence: 99%

“…(ii) Material can be deposited over specific regions of existing components and uneven surfaces to create a specific geometry or repair a broken feature (i) It does not allow to create small details with such good resolution [58] (ii) Generates parts with inferior accuracy and higher surface roughness [62,63] (iii) Accumulation of residual stresses [58,61] Metal BJ (i) Able to process all materials in powder form finish, power consumption, and residual stresses, among other factors, have been employed as machinability criteria, and the influence of the cutting parameters on their values has been studied to find optimal parameters that ensure the best results [80,81,[84][85][86].…”

Section: Dld (I) Enables Manufacturing Of Metal Parts With Higher Productivitymentioning

confidence: 99%

Porosity, cracks, and mechanical properties of additively manufactured tooling alloys: a review

et al. 2021

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Additive manufacturing (AM) technologies are currently employed for the manufacturing of completely functional parts and have gained the attention of high-technology industries such as the aerospace, automotive, and biomedical fields. This is mainly due to their advantages in terms of low material waste and high productivity, particularly owing to the flexibility in the geometries that can be generated. In the tooling industry, specifically the manufacturing of dies and molds, AM technologies enable the generation of complex shapes, internal cooling channels, the repair of damaged dies and molds, and an improved performance of dies and molds employing multiple AM materials. In the present paper, a review of AM processes and materials applied in the tooling industry for the generation of dies and molds is addressed. AM technologies used for tooling applications and the characteristics of the materials employed in this industry are first presented. In addition, the most relevant state-of-the-art approaches are analyzed with respect to the process parameters and microstructural and mechanical properties in the processing of high-performance tooling materials used in AM processes. Concretely, studies on the AM of ferrous (maraging steels and H13 steel alloy) and non-ferrous (stellite alloys and WC alloys) tooling alloys are also analyzed.

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“…According to the authors [27,28,29], the machining of coatings, especially after thermal spraying, has to address two main problems: the adhesion of the coating to the substrate and the wear of the tool. Moreover, the authors [30] state that the efficiency of the machining process depends on the structure and properties of the materials in contact.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Surface Roughness and Predictive Modelling of Machining Stellite 6

et al. 2019

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The aim of the paper was to examine the influence of cutting conditions on the roughness of surfaces machined by longitudinal turning, namely of surfaces coated with Stellite 6 prepared by high-velocity oxygen fuel (HVOF) technology and applied onto a standard structural steel substrate. From the results of measurements of the cutting parameters, a prediction model of the roughness parameters was created using mathematical and statistical methods. Based on a more detailed analysis and data comparison, a new method for prediction of parameters of longitudinal turning technology was obtained. The main aim of the paper was to identify the mutual discrete relationships between the substrate roughness and the machining parameters. These were the feed rate vc (m·min−1), in the case of turning and milling, and the feed rate f (mm·rev−1) and the depth of cut ap (mm). The paper compared and verified two approaches of this method, namely the mathematical statistical approach, the analytical approach and measured dates. From the evaluated and interpreted results, new equations were formulated, enabling prediction of the material parameters of the workpiece, the technological parameters and the parameters of surface quality.

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Machinability of Stellite 6 hardfacing

Cited by 8 publications

References 21 publications

The Analysis of Process Parameters for Turning Cobalt-Based Super Alloy Haynes 25 / L 605 Using Design of Experiment

The Analysis of Process Parameters for Turning Cobalt-Based Super Alloy Haynes 25 / L 605 Using Design of Experiment

Porosity, cracks, and mechanical properties of additively manufactured tooling alloys: a review

Investigation of Surface Roughness and Predictive Modelling of Machining Stellite 6

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