Trumpf TruTool TR-TF350-NC Manual Del Usuario página 19

3.2 Workpiece and joint
With different material thicknesses, the thin-
ner workpiece must be on the die side. The
thinner workpiece determines the maximum
shear strength, see Shear forces [} 19].
The joint can be created in two directions.
For this, the punch and die must be aligned
appropriately in the machine, see Turning
the joint [} 315].
F
1
1 Crosswise (100% shear strength)
2 Lengthwise (50% shear strength)
The middle of the joint should be at least 8
mm from the edge of the workpiece.
8 mm
2
8 mm
8 mm
Translation of the original operator's manual
3.3 Joint control dimension
x Joint breadth
Depending on the die type and material
thickness, the joint width must be in the fol-
lowing framework:
Die type Maximum total
material
thickness
steel
1 0.8 - 1.5 mm
2 1.6 - 2.0 mm
2+ 2.1 - 2.5 mm
3- 2.6 - 3.0 mm
3 3.1 - 3.5 mm
3.4 Shear forces
Depending on the thickness and tensile
strength of the material, different shear
forces are achieved.
The maximum shear strength is achieved if
both materials have the same strength and
tensile strength.
F(N)
2500
2000
1500
1000
500
0
0.5
F Breaking load
R Tensile strength of material in N/mm
m
s Individual material thickness
X
Control
dimension
joint width
4.0 - 4.5 mm
3.5 - 4.5 mm
3.4 - 4.5 mm
3.8 - 4.5 mm
3.6 - 4.5 mm
R =600 R =400
m m
R
=200
m
0.75 1 1.25 1.5 1.75
s(mm)
2
19
EN