 |
| ||||||||||||||||||||||||||||||||
Small cross sections of metal sheets, pipes and sections are straightened gently by hand. For bigger and stronger materials the following tools and devices are used:
Hammers
Locksmith's hammers, straightening hammers, light metal hammers, mallets and rubber hammers are used for straightening work in a vice, on an anvil and on a straightening plate.
Figure 2 Hammers 1 locksmith's
hammer, 2 straightening hammer, 3 light metal hammer, 4 mallet
Moving iron and tap wrench
Various moving irons and tap wrenches are used for straightening twisted flat sections, square and angle sections in the vice.
Figure 3 Moving iron and tap wrench
Tongs
Round tongs and flat tongs are used for straightening small bent metal sheets and small sections in the vice or freely by hand.
Figure 4 Round tongs and fiat tongs
Clamps
Clamps of various kinds and sizes are used for clamping and twisting distorted metal sheets and sections.
Figure 5 Clamp
Welding torches
Oxy-acetylene welding torches or blacksmith's fire and annealing furnaces are used for the local heating up of bent profiles and dented metal sheets.
Figure 6 Welding torch
Screw presses
Hand screw presses and hydraulic presses with various inserts and supports are used for straightening bent sections and smaller dented metal sheets.
Figure 7 Screw press
Straightening machines
Used are mainly roller straightening machines, on which bent metal sheets, flat materials, pipes and wires are led over a system of rollers, so that they become plane or straight
In addition to the above mentioned tools and devices, the following clamping devices and supports are required.
Vice
Used is mainly the parallel vice for straightening work with hammers, moving irons and tap wrenches or tongs as well as for straightening work without tools.
Figure 8 Vice
Anvil
Used are the face, round beak and flat beak of the anvil as supports for straightening work with the locksmith's hammer.
Figure 9 Anvil
Straightening plates Used are straightening plates from cast steel as supports for straightening work with hammers.
Figure 10 Straightening plate
What is the purpose of straightening?
What are the mainly used techniques for
straightening?
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
What hammers can be used for straightening steel
sheets?
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
What hammers can be used for straightening aluminium
sheets?
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
For what kind of straightening work are moving irons
used?
______________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
For what kind of straightening work can the hand screw press be
used?
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
 |
 |
