Abrasive material used in grinding wheel selected for grinding ferrous alloys is[ME 2000]a)SiCb)Diamondc)Al203d)Boron carbideCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Abrasive material used in grinding wheel selected for grinding ferrous alloys is Al203

Explanation:
Grinding wheels are widely used in industries for various applications such as grinding, cutting, and polishing. They consist of abrasive particles held together by a bonding material. The choice of abrasive material depends on the type of material being ground. In the case of grinding ferrous alloys, the most suitable abrasive material is Al203, which is also known as aluminum oxide.

Reasons for selecting Al203 as the abrasive material:

Hardness: Al203 has a high hardness, which makes it suitable for grinding ferrous alloys. Ferrous alloys are generally harder than non-ferrous materials, and a harder abrasive material is required for effective grinding. The hardness of Al203 allows it to remove material efficiently and provide a smooth finish.

Toughness: Al203 is also known for its toughness, which is the ability to withstand high impact and resist fracture. Grinding wheels undergo significant forces during operation, and the abrasive material should be able to withstand these forces without breaking. The toughness of Al203 ensures the durability and longevity of the grinding wheel.

Heat resistance: Grinding generates a significant amount of heat, especially when grinding hard materials like ferrous alloys. Al203 has excellent heat resistance, which allows it to withstand high temperatures without degradation. This heat resistance prevents the abrasive material from losing its cutting ability due to thermal damage.

Chemical stability: Al203 is chemically stable and does not react with ferrous alloys. This stability is crucial to prevent unwanted chemical reactions that can affect the quality of the grinding process and the workpiece being ground.

Overall, Al203 is the preferred abrasive material for grinding ferrous alloys due to its hardness, toughness, heat resistance, and chemical stability. It ensures efficient material removal, durability of the grinding wheel, and high-quality grinding results.

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