What are Metal Bond Grinding Wheels and What Benefits Do They Offer?

Extensively used in manufacturing diamond grinding wheels, metal bonds are manufactured utilizing three different processes: cold press, semi hot press and hot press modes. 

Cold press mode involves pressing the transition layer (no diamonds) and the working layer (with diamonds) of selected diamond portions to forms that on the body of the grinding wheel. These segments are then allowed to interconnect with the grinding wheel's body via slots or teeth. Finally, cold press grinding wheels are placed into sintering furnaces where they are sintered without press.

The semi hot press mode improves on the cold press mode by complementing the sintering process. While grinding wheels are sintering in a furnace, applicable molds are applied and minimal to moderate pressure is added. However, any pressure applied is significantly lower than the amount of pressure applied in hot press mode. 

Hot press mode directly sinters diamond particles in molds under preset pressure levels in induction units. Diamond segments are then affixed on the grinding wheel using high frequency laser welding, high frequency welding or mosaic methods of mechanical welding.

Metal bond grinding wheels are produced when powdered metals or compounds containing cubic boron nitride or diamond are sintered on the wheel, resulting in exceptionally strong tools that maintain shape during rigorous use. In addition, metal bonding extends the life of grinding wheels by reducing the need for repeated dressings and continues being productive longer than market-brand super abrasives.

Benefits of Using Metal Bond Grinding Wheels

  • Because metal bond grinding wheels are sintered with cobalt, copper, mill, silver or stanum powder, they work exceptionally well on a variety of surfaces (glass, refractories, ceramics, silicon, semi-conductors and quartz).

  • Whether used for tool cutting, glass grinding, ceramic grinding or form cutting, metal bond grinding wheels provide the longest, most superior quality of service before any type of maintenance is needed.

  • Metal bond offers the ability to perform outstanding interrupted cuts while retaining the tool's original dimensions even during the most energetic grinding actions, including centerless, cylindrical, creep feed, deburring and cutoff applications.

  • Although resin bonds are more commonly used than vitrified or electroplated bonds, these bonds do not offer the hardness or wheel retention properties exhibited by metal bond grinding wheels.

As one of the most frequently seen machines in manufacturing plants requiring grinding applications, centerless grinders especially benefit from metal bond grinding wheels because of the slow, precise pace of material removal method demanded of these machines. Additionally, super abrasive centerless grinders necessitate powerful wheels such as metal bond grinding wheels that can effectively make predetermined alterations to products while reducing quality control issues that may arise if lesser quality wheels are used.

Continental Diamond Tool Corporation has been producing Metal Bond products since it was founded in 1973. If you are looking for a custom metal bond wheel, contact our experienced team of product engineers today.