Cold bending is a stamping, rotary or roll bending forming process that bends metal plates , pipes and profiles into workpieces with a certain curvature, shape and size.
Theory of the Cold Bending Process
When metallic working materials are bent in cold condition (below their recrystallization temperature), at first an elastic shape alteration takes place, which is replaced by a ductile shape alteration from a certain degree on. If the reshaping capacity is run down, the work piece breaks.
The 3-roll plate bending machine with 3 rollers usually has two fixed rollers, while the upper vertical roller is positioned accordingly in order to complete the desired bending. By changing the relative position and rotating movement of the working roller,… Read More »2022 version – Plate rolling process of the 3-roll plate rolling machine
Know What Materials Are Good For Bending Some materials are more malleable than others. That means that some will bend, whereas others will weaken and crack. For less malleable materials, it might be practical to heat up the workpiece to… Read More »Sheet metal bending process: Cold and hot bending, press, roll, and stretch bending
What is Stretch Forming Process?
Two types
Sheet Stretch Forming process
Extrusion stretch forming process
A simple explanation of the process
The features of the stretch forming process
Advantages of the stretch forming process
Complex shapes
Less force
Cost savings
Quality finish
Disadvantages of the stretch forming process
Stretch forming applications
Which metals can be used for stretch forming process
Roll Bending Roll bending is a cold bending process whereby we obtain cold process deformation with a wider bend radius, the metal profile or steel plate is made to pass through a set of three rollers that, will form an… Read More »Rotary Bending and roll-bending the metal profile
What is rotary bending? Rotary bending perhaps is one of the most popular and effective ways of creating a precision bend. Rotary bending machines have many advantages over conventional wipe-bending methods. Rotary Bending is accomplished by bending the Pipe or… Read More »Principles of Rotary Draw Bending
Rebar is the short form of reinforcing bar. It is also known as reinforcing steel or reinforcement steel.
old roll forming is a kind of cold bending processing, it is an efficient, effective shaping that delivers tight tolerances on complex profiles. It is the process of gradually bending a flat strip or coil of metal into a longitudinal, uniform profile. To get the desired shape, the operator passes the workpieces through a series of mated tool dies.
Cold roll forming is a cold forming process that doesn’t require heating up the metal. High-temperature, specialized equipment isn’t necessary to produce cold rolled shapes.
Tube design When designing and arranging pipes, avoid excessive arcs, arbitrary curves, compound bends, and arcs greater than 180°. Excessive arc not only makes the tooling bulky, but also is limited by the size of the pipe bending machine; The… Read More »5 Points to note for bending pipes of cold bending
Cold bending vs hot bending. Hot Bending Process.
WHO NEEDS COLD BENDING?
Advantages of cold bending.
Disadvantages of cold bending.
What is hot Bending?
Hot Bending Process.
High efficiency! 2-roller plate bending machine generally can reach 100-350 pieces/h, up to 1000 pieces/h.The parts have high precision & good surface quality.