The different types of diamond grinding wheels

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Diamond grinding wheels play a crucial role in the glass industry, serving as indispensable tools for various applications. This article provides an in-depth understanding of diamond grinding wheels, exploring their composition, applications, and the differences between resin-bonded and electroplated diamond grinding wheels. By shedding light on these aspects, this article aims to provide valuable insights into the world of diamond grinding wheels.

1. Diamond Grinding Wheels Overview:

Diamond grinding wheels are primarily composed of synthetic diamonds combined with other metal powders. They are manufactured through a high-temperature and high-pressure process, resulting in a synthetic diamond product. These wheels find wide-ranging applications in the grinding and processing hard alloys, non-ferrous metals, and non-metallic materials. Common examples include diamond grinding discs, diamond grinding wheels, diamond resin grinding discs, diamond resin grinding wheels, and polishing discs.

2. Effectiveness and Selection of Diamond Grinding Wheel Grit:

The effectiveness of diamond grinding wheels is closely related to the selection of the grit size. The size of synthetic diamonds is represented by grit numbers, which directly influence the surface roughness of work-pieces, grinding efficiency, and tool wear. As a general principle, coarser grit sizes should be chosen while meeting the requirements of the workpiece, as this can enhance grinding efficiency and reduce tool wear. Diamond grit sizes typically range from 30# to W1. The selection of grit sizes for grinding processes follows the sequence of rough grinding (30#-120#), medium grinding (120#-240#), fine grinding (240#-W40), and polishing (W40-W1).

3. Resin-Bonded Diamond Grinding Wheels vs. Electroplated Diamond Grinding Wheels:

This section will highlight the differences between resin-bonded and electroplated diamond grinding wheels.

- Resin-Bonded Diamond Grinding Wheels:

Resin-bonded diamond grinding wheels primarily use phenolic resin combined with a small amount of metal powder as the bonding agent. These wheels are produced using a manufacturing process where the resin bonds the diamond abrasive material. The main differences between resin-bonded and electroplated diamond grinding wheels are as follows:

- Electroplated Diamond Grinding Wheels:

Electroplated diamond grinding wheels are manufactured through an electrodeposition process that involves depositing a layer of nickel-cobalt alloy on the surface of a metal base and firmly fixing the diamond abrasive. The main differences between resin-bonded and electroplated diamond grinding wheels are as follows:

Firstly, in terms of processing efficiency, electroplated wheels use higher-grade abrasives and have only one layer of abrasive material. They possess advantages in heat dissipation and other aspects, resulting in higher processing efficiency compared to resin-bonded wheels.

Secondly, regarding lifespan, electroplated wheels, having only one layer of abrasive material, have a shorter lifespan compared to resin-bonded diamond grinding wheels.

Thirdly, concerning processing precision and its impact on the surface roughness of work-pieces, under the same grit size conditions, electroplated wheels tend to produce slightly rougher surface finishes compared to resin-bonded diamond grinding wheels.

Diamond grinding wheels are essential tools in the glass industry, facilitating various grinding and processing applications. The selection of appropriate grit sizes is vital in optimizing the efficiency and effectiveness of grinding operations. Understanding the differences between resin-bonded and electroplated diamond grinding wheels enables manufacturers to choose the most suitable option based on their specific requirements. By incorporating the insights presented in this article, businesses can enhance their grinding processes, improve surface finishes, and achieve greater efficiency in glass manufacturing.