PDF Laser Surface Hardening of GCr15 Bearing Steel Ring

(PDF) Laser Surface Hardening of GCr15 Bearing Steel Ring

Surface hardening of GCr15 bearing steel ring was carried out using CW CO(2) laser. The laser power used was in the range of 300 to 500 Watts. A rectangular beam shape was ResearchGate0 , , , ! " ! # "Laser Surface Hardening of GCr15 Bearing Steel Ring Surface hardening of GCr15 bearing steel ring was carried out using CW CO2 laser. The laser power used was in the range of 300 to 500 Watts. A rectangular beam shape was used to cover the area to be hardened. A three fold increase in the hardness of the transformed zone was achieved.

(PDF) Laser Surface Hardening of Groove Edges

Surface hardening of GCr15 bearing steel ring was carried out using CW CO(2) laser. The laser power used was in the range of 300 to 500 Watts. A rectangular Study of laser nitriding on the GCR15 steel surfaceWe have made XRD analysis, surface hardness and hardening depth measurement, surface and profile morphology analysis to the laser nitrided GCr15 steel samples. From XRD patterns (as shown in Fig.2) can see thatin the laser nitrided GCr15 steel surface layer, nitrogen existed as cubic phase of hard compound phase Fe 2 3N, FeWear resistance of a bearing steel processed by laser The bearing steel was processed by LSR cooled by water, an approach that we expected to provide valuable information for preparing GCr15 steel with high wear resistance. The GCr15 samples used here are composed of (wt.%) 0.98 C, 0.23 Si, 0.32 Mn, 1.43 Cr, 0.021 P, 0.018 S (MS9710C, USA).

Diode laser surface treatment of bearing steel for

Furthermore, contact fatigue and bulk toughness are observed to be inadequate in heavy duty/load applications. Engineering the surface of prior hardened bearing steel by laser surface hardening to further enhance surface hardness without affecting the bulk can be gainfully utilized for tailoring tribological properties to improve life.(PDF) Effects of Quench Tempering and Laser Hardening 80 JMRT Effects of quench tempering and laser hardening treatment.pdf Content available from CC BY NC ND 4.0Effects of Quench Tempering and Laser Hardening Treatment on Wear Resistance of Introduction to Surface Hardening of SteelsIntroduction to Surface Hardening of Steels* Revised by Michael J. Schneider, The Timken Company, and Madhu S. Chatterjee, Bodycote SURFACE HARDENING, a process that includes a wide variety of techniques (Table 1), is used to improve the wear resistance of parts without affecting the more soft, tough interior of the part.

Bearing Steel an overview ScienceDirect Topics

Ball bearing steels are an outstanding example to discuss steel cleanliness as in this application the relation between cleanliness and fatigue properties has been clearly established [47].The total oxygen levels in ball bearing steels produced at Ovako Steel Hofors (former SKF steel) via the acid open hearth process (1964) and later via an electric arc furnace and an ASEA SKF ladle furnace (PDF) Study of laser nitriding on the GCR15 steel surfaceLaser surface melting of Ti 6AI 4V alloy under a pure nitrogen environment of 30 L/min gas flow rate, was carried out with 200 600 mJ laser beams, produced by a Nd YAG pulsed laser at 5 mm Advances in Mechanical Engineering 2020, Vol. 12(4) 111 Because bearings are mainly composed of GCr15 bear ing steel with a hardness of 6065HRC, the substrate material employed in this study was GCr15 bearing steel with a hardness of 6065HRC after quenching. The samples were polished using the metallographic abrasive papers with

Materials for Rolling Bearing Technology

Base material Through hardening rolling bearing steel 100Cr6 (SAE52100/SUJ2/STB2/ GCr15), modified where necessary. Depending on the wall thickness of the components, it may be necessary to use a higher grade alloy taking account of hardenability Heat treatment Martensitic hardening and tempering at high temperaturesA novel method of laser surface hardening treatment Biao Jin and co workers disclosed an underwater laser surface hardening process employing a 200 W Fiber laser with a Gaussian mode energy distribution to harden the surface of tool steel . Many studies are also available on LSH of different bearing steels employing high power lasers with variants in processing modes and setups for improvement Wear Behavior of Laser Hardened GCr15 Steel under Microstructure, microhardness and tribological properties of laser hardened GCr15 steel were investigated in this paper. The wear resistance under lubricated sliding conditions was compared between specimens treated with laser and those of conventionally hardened. The tribological properties of laser surface quenched GCr15 steel specimens were slightly better due to the effects of the

Laser Surface Alloying of Ni Co Electroplated Low Carbon Steel

Laser surface alloying of Ni Co electroplated steel using 900 W CW CO2 laser to develop Fe Ni Co alloy on the surface is reported. Fe Ni Co alloys of different compositions are produced by varying the working speed from 0.25 m/min to 3m/min and laser spot size from 0.6 mm to 5mm. The development of microstructure in the melted zone is analysed in terms of composition variation and cooling rate.Laser Hardening an overview ScienceDirect TopicsCarburizing, nitriding, laser hardening, and induction hardening are the most important case hardening techniques employed for steel gears. Typical case depths are between 0.075 to 8.25 mm [10] . Case hardened gears can withstand higher loads than through hardened gears, whereas the latter are usually quieter and less expensive [10] .Induction Hardening for Wind Turbine Bearing Rings Gear The inductive surface hardening of large rings and bearings can be grouped into three categoriesscanning with a soft zone; scanning without a soft zone; and single shot hardening. The first two categories refer to a process where an induction coil, or coils, scans (i.e. moves) around a ring or bearing.

Comparison of Advantages and Disadvantages of Bearing

Of course, better but the cost of steel is much higher, the standard bearing steel is Gcr15. Fourth, the bearing materials and performance. For example, the bearing rings and the rolling elements are subjected to high contact pressure repeatedly, and rolling contact is accompanied by sliding, while maintaining high precision rotation.Bearing Steel an overview ScienceDirect TopicsBall bearing steels are an outstanding example to discuss steel cleanliness as in this application the relation between cleanliness and fatigue properties has been clearly established [47].The total oxygen levels in ball bearing steels produced at Ovako Steel Hofors (former SKF steel) via the acid open hearth process (1964) and later via an electric arc furnace and an ASEA SKF ladle furnace Introduction to Surface Hardening of SteelsIntroduction to Surface Hardening of Steels* Revised by Michael J. Schneider, The Timken Company, and Madhu S. Chatterjee, Bodycote SURFACE HARDENING, a process that includes a wide variety of techniques (Table 1), is used to improve the wear resistance of parts without affecting the more soft, tough interior of the part.

Principles of Induction Hardening and Inspection

shaft, the bearing journals are selectively hard ened. Figure 2 illustrates some examples of the many types of ferrous components that can be induction hardened. Components are induction hardened for different reasons. Induction surface hardening, also sometimes called induction case hardening, increases the hardness and strength at the surface.(PDF) Voids healing and carbide refinement of cold rolled Voids healing and carbide refinement of cold rolled M50 bearing steel by electropulsing treatment.pdf. a surface hardening and cold ring rolling (CRR) of GCr15 bearing steel, after IOP Conference SeriesEarth and Environmental Science So the study of 35 CrMo /GCr15 friction performance of friction pair was of great significance. It could improve the working life of bearing and shaft . At present, there are a lot of research on this subject. Literature 1 thought that the surface roughness of material had impacted on the tribological properties of 35CrMo/GCr15 friction pairs.

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