Fumbling Polish Process

It is a process that uses mechanical vibration to make the workpiece, grinding stone and abrasive continuously roll and rotate in the tank of the equipment, and achieves the surface treatment effect through appropriate friction and compression.

Process Goals

• Deburring/Chamfering: Suitable for finishing parts after stamping, lathe machining, and die casting.
• Surface Finishing: Removes fine scratches and rough textures, providing a smooth base for electroplating or painting.
• Bright Polishing: Further enhances the brightness and texture of metal surfaces.
• Cleaning/Descaling: Removes oxide layers, oil, and residues, improving adhesion for subsequent electroplating.

This process typically involves: stamping/lathe/die casting -> fumbling polish -> cleaning -> electroplating/spraying -> quality inspection. It is a crucial step connecting molding and surface treatment, ensuring that the final product has a delicate appearance, smooth surface, and stable quality.

Equipment Styles

• Vibratory bowl （universal）： Best all-around; good part mixing and coverage.
• Rotary variants（centrifugal barrel/disc）： Much faster cutting; small, tough parts.

Media Choices

Compounds

• Griding/cleaning agents： Emulsify oils, carry away swarf, keep media clean.
• Brighteners： Promote gloss with steel media.

Quality& Inspection

• Track every period of time edge radius, gloss, and dimensional change (stock loss per pass).
• For cosmetic hardware (buckles, eyelets, rivets, snaps), aim for consistent sheen and uniform grain before plating/painting.

Common defects & fixes