Laser Surface Hardening of Gun Metal Alloys

Naeem, Samia; Mehmood, Tahir; Wu, Kaiming; Khan, Babar Shahzad; Majid, Abdul; Siraj, K.; Mukhtar, Aiman; Saeed, Adnan; Riaz, Saira

doi:10.3390/ma12162632

Cited by 6 publications

(2 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A temperature gradient is formed around the processing area. In the region near the processing area, martensite is produced as exceeding the phase transition temperature, which can improve surface hardness [17,18]. The wear resistance of mating surfaces is improved by grain refinement and dislocation strengthening.…”

Section: Resultsmentioning

confidence: 99%

Disassembly damage and bearing capacity of shaft with surface micro-texture

Yin

Huang

Zhou

et al. 2022

Surface Engineering

View full text Add to dashboard Cite

The re-assembly performance of the mating surfaces in interference fit was affected by the disassembly in the previous step due to the serious friction damage. The experimental platform was built to investigate the disassembly damage and bearing capacity of a shaft in an interference fit. The effects of the surface micro-textures with different shapes and densities on disassembly damage and bearing capacity of the shaft in an interference fit were analysed from the micromorphology, microstructure, and material properties. For the micromorphology, the effects were explained based on the bearing area curve. For the microstructure and material properties, the surface strength of micro-textured surface was enhanced due to the fine grain strengthening and dislocation strengthening. The surface hardness was improved due to the generation of martensite. The results showed that the circular micro-textured surface with 20% area density effectively reduced the disassembly damage and increased the bearing capacity of the shaft in an interference fit.

show abstract

Section: Resultsmentioning

confidence: 99%

Disassembly damage and bearing capacity of shaft with surface micro-texture

Yin

Huang

Zhou

et al. 2022

Surface Engineering

View full text Add to dashboard Cite

show abstract

“…Zinc increases the fluidity of gunmetal during casting. 1 Gun metal is called red brass which is an alloy of copper, tin, and zinc. The distinguished nature of gun metal such as ample thermal conductivity, good corrosion resistance and machinability makes it to find working in tribological applications such as piston rings, bearings, bushes etc.…”

Section: Introductionmentioning

confidence: 99%

Use of sustainable cooling/lubrication strategies in improving the tribological and machining characteristics of gun metal

Danish,

Gupta,

Garcia-Collado

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The term “sustainable manufacturing” refers to both the production of sustainable products as well as the production of all products in a way that is environmentally friendly, energy efficient, and safe for workers, communities, and customers. In the context of sustainable machining, the application of non-polluting cutting fluids plays an important role in improving the machining properties. However, the machining of gun metal is difficult because of generation of friction and cutting temperature at main cutting zone. Hence, it’s very difficult to obtain the product made from gun metal at specific size and desired tolerances. A primary goal of this paper is to establish an accurate method for measuring the machining responses of gun metal with the aid of sustainable cooling strategies. The machining has been carried out using the TiAlN coated tungsten carbide inserts and the machining performance in terms of temperature, surface quality, tool wear, chip condition and power consumed is measured under distinct speed-feed and cutting regimes. The cutting parameters selected were the speed of 75 and 115 m/min and the feed rate of 0.05–0.15 mm/rev. The utilization of cryogenic carbon dioxide (cryo) results in a maximum temperature reduction, which in turn leads to an improvement in the surface quality. In comparison to other cutting settings, the SEM pictures of chip indicate a relatively low level of serration; nonetheless, there is not a significant difference between MQL and flood circumstances. Moreover, cryo-CO2 consumed less power to machine the work material.

show abstract