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Double Bulge Diamond Bead for Stone Cutting

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Double Bulge Diamond Bead for Stone Cutting
Benefit: Cost Saving, Improved Performance
Main Forming Process: Metal Injection Moulding
End Use Sector: Construction, Engineering, Mining
Material: Non Ferrous

Finishing: The bead is sintered onto a steel cylindrical support, and then brazed to the support with a eutectic Cu/Ag alloy


The fabrication of the beads for diamond wires for stone cutting is commonly performed by means of hot pressing, both uniaxially and isostatically, but more and more often by means of the press-and-sinter route. In the former processes the densification of the powders is aided by a pressure applied by a graphite ram or by an inert gas; on the contrary, in the press-and-sinter process densification occurs at low pressure (or vacuum) only because of the effect of temperature. In all cases a preforming of the green bead by means of uniaxial cold pressing is required.


A totally new patented system based on Metal Injection Moulding (MIM) technology has been developed and offers considerable advantages in speed and cost saving.

Component Specification

Weight (g): 2.15
Density (g/cm3): > 8
Hardness (HV): > 240

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