Cutting tools
14
What is meant by "cutting" is the sev-
ering of copper or aluminium cables
or conductors with a tool appropriate
for this application.
The requirement for all cutting tools is:
Smooth, straight cut without
distortion of the conductor.
Sheared conductor
Clean cut
Pulled out conductor
Crushed cable
Insulation
Conductor
A "dirty" cut may have the following
appearance:
Cutting is differentiated fundamentally
according to the following cutting pro-
cesses:
Push cutting
Oblique cutting
With a push cut, the cutting movement
occurs vertically between the tool and
workpiece. With an oblique cut, the cut-
ting motion occurs at an angle to the tool.
In position 1, the cuts are made immediately in the full
length, i.e., much force is required.
In position 2, the cuts cross one another as occurs
with scissors (scissor cut), i.e., the cut is made with
lateral displacement, so that less force is required.
Position of cuts
Cutting motion
Push cut Oblique cut
Position 1 Position 2
According to DIN 8588, a distinction is
made among scissor cuts, wedge-action
cutting, tearing and breaking. Scissor cut-
ting is employed particularly in the cutting
of cables, wires and conductors.
Cutting tools with cross blades should
perform an oblique cut and operate free of
play.
The essential quality characteristics for
professional cutting tools are a cutting
edge shape which is suited to and opti-
mised for the corresponding application,
so that the manual forces required for cut-
ting remain low. This allows single-handed
operation.
A further quality characteristic is the cut-
ting angle, i.e., the sharpness of the blade
and the existence of a facet. This is the
deliberate slight increase in the cutting
angle, as a result of which the duration of
life of the cutting edge and cutting edge
sharpness is increased.
Tools supplied by Weidmüller comply with
all requirements imposed on professional
cutting tools.
lower
cutter
blade
faced
upper
cutter