Advancements in Dressing Techniques for Metal-Bonded Diamond Grinding Wheels

Abstract

Metal-bonded diamond grinding wheels are widely used for precision and ultra-precision grinding of hard and brittle materials due to their high grinding efficiency, low processing cost, and other characteristics. However, the poor self-sharpness and easy blockage of metal-bonded diamond grinding wheels can affect the stability of the grinding process and the grinding surface quality. Additionally, the shape accuracy of the grinding wheel can be destroyed during the grinding process of hard and brittle materials, which can also affect the grinding surface accuracy and surface quality.

To address these issues, a swing arm type electric spark dressing device has been designed to realize high dressing precision. This paper presents an electric sparking experiment using the dressing device. The experimental results show that higher dressing efficiency and low arc precision can be obtained with large electrical parameters, while higher arc precision and lower efficiency could be obtained with small electrical parameters. The experiment can guide the selection of different parameter combinations in different dressing stages to improve the dressing efficiency and precision.

In summary, this paper proposes a new dressing technique for metal-bonded diamond grinding wheels, which can improve dressing efficiency and precision, and thus contribute to high-efficiency and high-quality finishing technology for hard and brittle materials. This technique has the advantages of low cost, easy realization, and easy adjustment, making it a promising choice for dressing metal-bonded diamond grinding wheels.