Cover Image
close this bookShearing - Course: Technique of working sheet metals, pipes and sections. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 17 p.)
close this folder6. Sequence of Selected Shearing Operations
View the document(introduction...)
View the document6.1. Cutting-in Sheets on the Tinners’ Snip
View the document6.2. Cutting-off the Sheet on the Lever Shear
View the document6.3. Cutting-off Angular Sections on the Lever Shear

6.3. Cutting-off Angular Sections on the Lever Shear

- Scribe length of angle section accurately to size. Scribe the line inside.

- Shove angular section through the shear’s angular-profiled blade (in line of vision to the shear).

- Align scribed line with upper shear blade.

- Release hand lever locking device.

- Pull down hand lever with a jerk.

- Pull angular section out of the shear. Throw waste par into the waste container.


Figure 27. Correct section knife for the shearing of angles

Why must steel sections be cut with section knives?
_____________________________
_____________________________
_____________________________

What will happen when steel sections are cut on plane shear blades?
_____________________________
_____________________________
_____________________________

Why must the hand lever of the lever shear be locked after the cutting operation?
_____________________________
_____________________________
_____________________________

Why must waste material rendered during the shearing operation be immediately thrown into the waste container?
_____________________________
_____________________________
_____________________________