Welcome To Our Website. Any questions about PCD cutting, brazing and grinding, Call Us:+86 17700605088

Analysis of the reasons for the blackening of the grinding wheel when grinding PCD tools with a vitrified diamond wheel

2021-12-17 17:02:43

1. The grinding wheel is blocked. After grinding a large number of workpieces, the grinding wheel turns black, indicating that the debris during grinding did not fall off in time and adhered to the surface of the grinding wheel. Therefore, the surface of the grinding wheel may be blocked by the grinding debris. At this time, it is necessary to use an oil stone or a dressing wheel to the diamond grinding wheel.

PCD insert grinding

2. The temperature of the grinding wheel is too high. During the grinding process, the coolant is used less, and the grinding heat increases. At this time, it is necessary to increase the amount of coolant to reduce the temperature of the grinding wheel and the workpiece.

3. The feed amount is too large. The grinding wheel feed rate is large, the cutting thickness of a single abrasive grain increases, and the heat generated increases, which increases the grinding temperature and also causes the grinding wheel to turn black. It is necessary to appropriately reduce the grinding wheel feed rate.

4. The hardness of the grinding wheel itself is too high. The grinding wheel is selected to be too hard, and the blunt abrasive grains are not easy to fall off. The workpiece material is PCD. The harder the workpiece material, the softer the hardness of the grinding wheel should be selected to make the blunt abrasive particles fall off quickly, so that the grinding wheel always keeps sharp abrasive particles at work to avoid workpiece burns and debris from blocking the grinding wheel.

 

 

---EDITOR: Cindy Chhen

---POST: Doris Hu



TAG:  vitrified diamond grinding wheel


  • Alumina ceramic rings grinding  case
    28 August 2024

    Alumina ceramic rings grinding case

    Moresuperhard ceramic bond diamond grinding disc has superior performance in high alumina ceramic grinding. In the future, we will continue to be committed to providing customers with high-quality abrasive solutions to help them maintain their competitive advantage in the ever-changing market demands.

  • How to dressing cast iron lapping disc?
    23 August 2024

    How to dressing cast iron lapping disc?

    In order to maintain the good performance of cast iron grinding discs, they usually need to be maintained and trimmed regularly. Common maintenance measures include regularly cleaning surface dirt and residues, repairing wear or deformation caused by use, and ensuring that the disc surface always remains flat.

  Add:  Zhongyuan Rd, Zhongyuan District, Zhengzhou, 450001, Henan, China

  Tel: +86 17700605088

  WhatsApp:+86 17700605088

  E-mail: pcd@moresuperhard.com