About Edge Breaking

Standard Values for Edge Breaking

Model Example Part Example Standard Value
Light Edge Breaking
C/R Edge Breaking
Option Name: “All Around R0.2 or Larger / Corner C1”
  • ①Corner
Not Available
  • Chamfer model corners with C1
  • Corners less than 30° or greater than 170° are excluded
  • Image of chamfered corner
  • ②Edges of sheet metal surfaces
  • Finish burrs and flash generated during sheet metal punching to approx. R0.1
  • Finish burrs and flash generated during sheet metal punching to R0.2 or larger (approx. R0.3)
  • ③Narrow Slit Area
No burrs or flash of 0.1 mm or larger Finish burrs and flash to approx. R0.1
  • ④Narrow width, small holes
No burrs or flash of 0.1 mm or larger Finish burrs and flash to approx. R0.1

Appearance of Edge Breaking

Finish of light Edge Breaking

  • There is a possibility of minor scratches on the appearance because a double-sided deburring machine is used for eliminating burrs.
  • Edge breaking and engraving cannot both be specified on the same model. The edge breaking process can cause the engraving to fade.
  • Transparent resin parts will have the edge breaking finish as standard.
Acrylic (transparent), thickness 8.0㎜
EN 1.4301 equiv. (2B), thickness 3.0 ㎜

Finish of C/R Edge Breaking (All Around R0.2 or Larger / Corner C1)

  • Edges of sheet metal surfaces are chamfered to R0.2 or larger using a double-sided deburring machine, and product corners are chamfered to C1 by laser processing.
  • Fine scratches may occur on the surface during Edge Breaking of edges of sheet metal surfaces.
  • C/R Edge Breaking is not available when combined with engraving service, as characters may become faint.
Edges of sheet metal surfaces
EN 1.4301 equivalent (2B), thickness 6.0 mm
Edge Breaking of Product Corner
EN 1.4301 equivalent (2B), thickness 6.0 mm

Caution

Cases Where Edge Breaking is Restricted
Since Edge Breaking is performed by a deburring machine before bending, narrow slit areas will have a fine chamfer finish (approx. R0.1).

Caution

Cases Where Corner Edge Breaking is Not available
1. Model corner includes curves
2. Acute angles less than 30° and obtuse angles greater than 170°

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