Technical Guidelines for Edge Finishing Processes

Technical Guidelines for Edge Finishing Processes
Precision and quality are core priorities in manufacturing production, among which edge machining and deburring play a vital role. Standardized deburring operations improve product appearance, enhance operational safety of finished parts, boost paint adhesion, and prepare workpieces for subsequent welding procedures. Combined with metal grinding equipment manufactured by Dyyrent, this document introduces diverse processes and processing methods to achieve varied edge finishing outcomes.
I. Coarse Surface and Burr Removal: Non-woven Abrasive Flap Roller Process
This process adopts a wide-belt sanding unit fitted with 3M non-woven polishing rollers to clear edge and lateral burrs as well as secondary burrs for refined surface finishing. Eliminating secondary burrs with polishing rollers improves product safety, paint adhesion and pre-weld surface condition. Key processing features of the polishing roller are listed below:

1. Removal of lateral secondary burrs

1. Surface finishing of workpieces via polishing rollers

1. Synchronized rotation of polishing rollers alongside conveyor feed to grind front edge corners of parts

1. Synchronized rotation of polishing rollers alongside conveyor feed to grind rear edge corners of parts

1. Reciprocating swing motion of polishing rollers for precision finishing on both side edges

1. Dual-brush configured models with counter-rotating two polishing rollers to finish four side edges of a workpiece in one pass

II. Precision Corner Rounding: Disc Brush Process
The disc brush process delivers premium edge radiusing on metallic workpieces, adopted by Dyyrent’s DRP series equipment from Nanjing. Processing flow: the first roller sanding head removes primary burrs, followed by disc brush trimming for edge finishing and secondary burr clearance; an optional third polishing roller head enables brushed linear texture finishing. The DRP series can produce corner radii up to 1 mm. Compared with flap roller processing, the precision version of DRP series delivers superior corner rounding via disc brush technology.

III. Extra Large Radius Chamfering: Rotary Brush Process
Dyyrent DRG series rotary brush equipment delivers high-precision premium rounded edge finishing. This premium-grade equipment ensures uniform 360° perimeter corner radiusing, ideal for components requiring further downstream processing. While most manufacturers only require 0.3 mm or 0.5 mm corner radii, this model achieves 1~2 mm rounded chamfers, perfectly accommodating painting, powder coating, welding and other post-surface treatments to secure durable coating adhesion. Among flap roller and disc brush alternatives, the universal rotary brush series achieves top-tier quality for rounded corner fabrication.

Key Factors Influencing Metal Surface Finishing Results
Manufacturers must control multiple parameters to achieve target processing quality: feed speed, grinding head rotational speed, abrasive material selection, grinding pressure, head configuration, rubber roller hardness, and wet/dry processing modes. All above equipment parameters directly determine final workpiece surface quality.
Industrial Application Requirements
Demand for high-precision edge finishing keeps growing across aerospace, medical device, food processing and other industries. Driven by upgraded coating standards, stricter workplace safety regulations and advanced welding technologies, workpiece edge finishing has become an essential manufacturing requirement.
Consult Dyyrent Technical Experts for Edge Finishing Solutions
Intense market competition within the manufacturing sector makes detailed edge finishing a decisive factor for product competitiveness. From basic rough edge chamfering and standard precision corner rounding to large-size rounded chamfering, diversified deburring solutions reflect Dyyrent’s continuous dedication to product quality, machining precision and technological innovation.