Grindability and Surface Integrity of Cast Nickel-based Superalloy in Creep Feed Grinding with Brazed CBN Abrasive Wheels

By Ding Wenfeng, Xu Jiuhua, Chen Zhenzhen, Su Honghua, Fu Yucan. 2010

183 citations recorded by the source corpus.

The technique of creep feed grinding is most suitable for geometrical shaping, and therefore has been expected to improve effectively material removal rate and surface quality of components with complex profile. This article studies experimentally the effects of process parameters (i.e. wheel speed, workpiece speed and depth of cut) on the grindability and surface integrity of cast nickel-based superalloys, i.e. K424, during creep feed grinding with brazed cubic boron nitride (CBN) abrasive wheels. Some important factors, such as grinding force and temperature, specific grinding energy, size stability, surface topography, microhardness and microstructure alteration of the sub-surface, residual stresses, are investigated in detail. The results show that during creep feed grinding with brazed CBN wheels, low grinding temperature at about 100 °C is obtained though the specific grinding energy of nickel-based superalloys is high up to 200-300 J/mm3. A combination of wheel speed 22.5 m/s, workpiece speed 0.1 m/min, depth of cut 0.2 mm accomplishes the straight grooves with the expected dimensional accuracy. Moreover, the compressive residual stresses are formed in the burn-free and crack-free ground surface.

Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/181e848b535eeedf5714906ee064bd301ade39c3

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In Biomedical Engineering

1. Changhe Li
2. Yanbin Zhang
3. Dongzhou Jia
4. Z. Yin
5. Min Yang

In Electrical and Electronic Engineering

1. Changhe Li
2. Yanbin Zhang
3. Dongzhou Jia
4. Min Yang

In Mechanical Engineering

1. Changhe Li
2. Yanbin Zhang
3. Dongzhou Jia
4. W. Ding
5. Min Yang
6. Runze Li
7. Li Runze

Citations in the corpus

• Specific grinding energy and surface roughness of nanoparticle jet minimum quantity lubrication in grinding (2015, background): “Moreover, leakage and volatilization of grinding fluid cause pollution and inflict hazards to the environment and the human body.(7) Therefore, a cooling lubrication approach is necessary for ecological and clean production grinding process.”
• Creep feed grinding induced gradient microstructures in the superficial layer of turbine blade root of single crystal nickel-based superalloy (2021, background): “As presented by Ding et al [18], a gradient microstructure (i.e. surface nano-laminated structure, deformation twinned structure, and severely deformed structure) of a Hastelloy C-22HS nickel-based superalloy could be produced by mechanical grinding.”
• Review on monolayer CBN superabrasive wheels for grinding metallic materials (2017, background): “4.(20) If either wheel hub or grain size distribution exceeds the desired tolerances, the profile dimension accuracy of the ground components will not meet the desired level.”