Isotropic finishing of austempered iron casting cylindrical parts by roller burnishing

Rodríguez, Adrián; Lacalle, Luis Norberto López de; Pereira, Octavio; Fernández, Ángel G.; Ayesta, I.

doi:10.1007/s00170-020-05894-7

Cited by 34 publications

(18 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the mainstream of recent developments is towards the use of the CO 2 cryogenic cooling, a window remains for appropriate intensive spray cooling. The MQL might see the potential of the proposed method also with the hot stamping [11,12] and the roller burnishing [13]. Another process receiving much attention lately is the spray cooling during the high pressure die casting [14].…”

Section: Introductionmentioning

confidence: 99%

Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Boháček

Raudenský

Kotrbáček

2021

Metals

View full text Add to dashboard Cite

A novel method of cooling rolls in hot rolling is proposed. This method uses a combination of solid jet nozzles and specially shaped deflecting vanes. The vanes transform the incoming cylindrical water jet into a flat fan. Thereby, the coolant can be directed into hardly accessible locations whilst maintaining the optimal angle of impingement. The vanes allow for effectively cooling the roll surface near the rolling gap, which is otherwise not possible with classical flat fan nozzles. The jet impact is tangential due to the limited room for nozzle mounts or a coolant supply. The developed method was laboratory tested. A similar cooling efficiency was found between the vane and the flat fan nozzle. The latter was however mounted in a position impossible in the plant. The potential of the proposed cooling is, therefore, eminent. Apart from hot rolling, it could be exploited in other technological processes such as high pressure die casting, machining, turning, hot stamping, etc.

show abstract

Section: Introductionmentioning

confidence: 99%

Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Boháček

Raudenský

Kotrbáček

2021

Metals

View full text Add to dashboard Cite

show abstract

“…Manufactured components with functional surfaces usually require high surface finishes [1,2]. In many sectors, manufacturing processes such as milling, turning or hole making were commonly used.…”

Section: Introductionmentioning

confidence: 99%

Edge finishing of large turbine casings using defined multi-edge and abrasive tools in automated cells

Rodríguez

González

Pereira

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Automate finishing processes is a global challenge in several industrial sectors. Concretely, when dealing with aero-engine components, only simple finishing processes are automated nowadays. Most of the high-added value components manufactured are finished hand working, using deburring and polishing manual techniques. The driver of the proposed work is to achieve the necessary knowledge to introduce in a production line a complete finishing process for automated robotic deburring applications with low machinability materials (Inconel 718 in this case-study) on aero-engine casings with complex geometries: extruded casting bosses, internal features, etc. For this purpose, a three-step methodology is presented and analysed, providing a feasible workflow combining visual inspection for part positioning and edge location, with multi-edge solid tools and flexible abrasive tools to automate finishing operations, taking into account all process singularities. Results show that, using correct techniques, processes and parameters, an automated finishing process reducing operating time can be implemented in production lines.

show abstract

“…In order to improve the durability of the valve seat in the service process, the new power is integrated with a cylinder head and a valve seat. Since valve seats require a material surface resistant to wear, the overall valve seat surface needs to increase its abrasion resistance using the modified process [5,6]. The main methods used to modify and improve the hardness of valve seats are high frequency induction phase change hardening, laser phase change hardening, laser melting, and laser cladding [7,8].…”

Section: Introductionmentioning

confidence: 99%

Research on Laser Cladding Co-Based Alloy on the Surface of Vermicular Graphite Cast Iron

Sun

Cai

et al. 2021

Coatings

View full text Add to dashboard Cite

To further improve the hardness of the laser cladding layer on the surface of the vermicular graphite cast iron, the structural parameters of the laser cladding Co-base were designed and optimized, and the properties of the clad layer were evaluated using optical microscopy (OM), scanning electron microscopy (SEM), energy spectroscopy (EDS), X-ray diffractometer (XRD), electrochemical workstation, and friction wear equipment. The results show that the average hardness of the molten layer of Ni and Co-based composite cladding layer is 504 HV0.5, which is 0.64 times that of the Co-based cladding layer due to the combined factors of Ni-Cr-Fe equivalent to the dilution of the Ni-based cladding layer to the Co-based cladding layer. Due to the potential difference of the Ni, Cr, and Co elements on the surface of the cladding layer, the self-corrosion potential of the Ni and Co-based composite cladding layer is 1.08 times that of the Co-based cladding layer, and the self-corrosion current density is 0.51 times. Laser cladding Co-based cladding layer has high corrosion resistance. Under the influence of plastic deformation and oxidative wear of the cladding layer of the Ni and Co-based composite cladding layer, the wear amount of the cladding layer of the Ni and Co-based composite cladding layer is less.

show abstract

Isotropic finishing of austempered iron casting cylindrical parts by roller burnishing

Cited by 34 publications

References 34 publications

Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Edge finishing of large turbine casings using defined multi-edge and abrasive tools in automated cells

Research on Laser Cladding Co-Based Alloy on the Surface of Vermicular Graphite Cast Iron

Contact Info

Product

Resources

About