1. Special Tools Guide
  2. Trapezoidal hat-Bending (Counter-Type)

Trapezoidal Hat Bending (Counter-Type)

SPCC : 0.6 - 2.0mm SUS : 0.6 - 1.2mm

This tool creates trapezoid-shape (like Hat shape ) groove by one operation. Four (4) bends can be made all in one operation material and no turning is required. Product flatness and dimensional accuracy is well satisfied.

Work Sample Work Profile Tool Image
Trapezoidal Hat Bending Trapezoidal Hat Bending 2 Trapezoidal Hat Bending Tool

Tool Spec.

Mat. SPCC, SUS, AL
Thickness  mm 0.6 - 2.0(SUS less than 1.2)
Hight (H)  mm (t x 5) - 15
Width (A)     mm (t x 4) - 30

Required Tonnage

Required bending tonnage /per m(SPCC) unit kN/m
Radius mm 5 10 15 20 30
Thickness mm 0.6 260 250 250 240 240
0.8 360 340 340 340 330
1 460 430 420 420 410
1.2 - 510 500 500 490
1.6 - 700 680 670 660
2 - 890 870 850 840

* Multiply x 1.5 to above figure for stainless steel, and x 0.6 to Al A5052

Necessary Tonnage Calculation

SPCC Tonnage /m above x1.0 x product length(mm)÷1000
SUS Tonnage /m above x1.5 x product length(mm)÷1000
AL Tonnage /m above x0.6 x product length(mm)÷1000

Cautions

Marring

Marring appears on the punch hold-down area and die side surface.

Trapezoidal hat-Bending Marring on  Punch Side

Check Machine Capacity

Be sure that required tonnage gained by equation above does not exceed the machine capacity.

Product Accuracy

Product height accuracy becomes ± 0.2mm.

Product width A accuracy -0, +0.2mm

R1 radius becomes t (material thickness) and R2 becomes t x 2

 

Special Tools Guide