Tufted Silicon Carbide Abrasive Disc Brush Insert Filaments Into Mold

Resin injection and curing for a tufted abrasive disc brush

This clip covers the moulding stage after tuft insertion: pre-grouped silicon carbide abrasive filament tufts are loaded into the precision mould, resin is injected, and the assembly is cured so filament and disc body become a single integrated part.

Integrating rather than assembling is the point of the step. A moulded disc has no separate filament retaining ring to work loose, and the cured resin locks each tuft against the side load that edge deburring produces.

What happens after the mould

Curing is not the last operation. The disc is trimmed to true its face and then balanced, because a moulded disc that has not been trimmed will run with the same uneven contact as any other unbalanced wheel: high spots cutting hard, low spots passing over the work.

Trimming and balancing together are what turn a moulded blank into a disc that gives the same finish on the first part and the five-hundredth.

Choosing grit and density

Silicon carbide is selected for hard metals and for edges that need to be broken decisively. Grit grade sets how aggressively it cuts, filament diameter sets how it behaves on edges and contours, and tuft density sets both the finish and the heat the disc generates. Getting the three matched to the job matters more than any single specification.

Applications and enquiry details

These discs run on gear faces, flange surfaces, machined plate and cast components before assembly. To specify one, send the workpiece material, the disc diameter and arbor your machine takes, the spindle speed range, and the finish you need — those four points are enough for us to recommend grit, filament diameter and density.