What Alloy Powder Can Enhance the Impact Resistance of Diamond Tools?

What type of alloy powder can be used to improve the impact resistance of diamond tools? For a tool matrix with good impact resistance, it is necessary to maintain a certain level of toughness while ensuring that its ability to hold (retain) diamonds is not too weak.

Technicians from Sagwell recently shared a representative customer case with us.

When the customer used small saw blades to process high-hardness ceramic tiles, the instantaneous impact force during processing was relatively large. After the saw blade made contact with the tile, severe sparking occurred—so intense that the saw blade was almost like a "fire wheel" (a vivid description of extreme sparking). The customer sent this saw blade to us, hoping to identify the root cause of the problem.

Sagwell's technicians carefully observed the working surface of the saw blade under a microscope and found multiple matrix fracture pits. Even the pockets (recesses) that hold the diamond grits showed holes. Essentially, the customer's choice of an Alloy Powder-based matrix structure for the small saw blade was correct. After full communication with the customer, we recommended adjusting the matrix to improve its impact toughness: appropriately increasing the matrix's toughness and strength, enhancing its holding force on diamonds, which would in turn improve the matrix's impact resistance.

This adjustment approach is also applicable to various types of diamond tools. Sagwell's technicians suggest using conventional iron-copper-nickel alloy powder as the base material, and then adjusting the matrix's toughness-brittle balance according to the specific workpiece (material being processed).