Pipe bending machine has a very wide range associated with applications on metal system, agricultural machinery, power equipment, as well as boilers, petrochemical, electrical power, light industry, and other industrial sectors. With the rapid development of economic construction, the number of plenty of tube bending machine plus forming pipe fittings, descriptions and material requirements are usually constantly increasing, the patterns keep renovate, while the precision and surface quality on the pipe bender put forward higher requirements. This feature is in particular prominent in certain industries just like power systems.
• Water line bending machine processing techniques

• The characteristics with roller bending machine

• Factors affecting the bending process-ability on the pipe
Pipe bending device processing methods
Roller bending machine processing method is quite a bit, according to the bending method, it can possibly be divided into rounding, push bending, pressure bending plus roll bending; bending with or without filler may be divided into core (filler) bending and no core (filler) bending; bending whether or not heating can be split into cold bending in addition to hot bending.
Cold bending method has a long history of growth, more types, while the hot bending method is developed in the continue two decades bending refinement methods. The main television cold roll-forming processing strategies are:
1) pressure bending;
2) wrapping bending;
3 ) rotary die bending;
4) pull bending;
5) jiggle bending;
6 ) push bending as well as other forming methods.
The properties of roller bending unit
In addition, there are usually expansion tube bending, vibration plus impact bending, wrinkle twisting, MOS bending and additional bending processing methods, but generally not commonly used. In the actual television cold bending process, rotary die bending (or rotary draw bending radial-draw bending) is a most common bending running methods, but also having CNC pipe bending device bending processing. The tube forming process discussed during this paper is under this bending process procedure for research.
Compared with solid plate bending, the pipe is hollow thin-walled structure of the cross-sectional shape, the stress-strain state analysis can be seen, the pipe in the actual bending process, the neutral layer in the garden the tensile stress and thinning with the pipe wall, the neutral layer included in the compressive stress and thickening with the pipe wall, while the actual pipe cross-sectional distortion, that is, flattening. Therefore, no matter what type of bending method is ingested, in the pipe bender course of action, easy to produce the following kinds of adverse phenomena:
JUST ONE ) pipe bending exterior the thinning, or sometimes cracking;
2 ) Tv bender inner thickening, or even unstable wrinkling;
3) pipe section distortion (flattening), or even deflated.
Moveover, as that pipe bending is elastic-plastic deformation, once the load is removed, this pipe bender angle and bending. Radius will arise elastic recovery, that will be, springback phenomenon; at the same time frame, in the bending procedure, the pipe is subject to tensile stress. At the same time, in the bending course of action, the pipe is subjected to tensile stress. and generate elongation, that is, elongation method.
Factors affecting the bending process-ability of the pipe
All these phenomena not just affect the pipe bending accuracy, but also ascertain the steel bending machinability (i. at the. the pipe bending digesting limit).
There are a number factors that affect this pipe bending machinability, which might be summarized as follows:
a new ) pipe bending appliance shape parameters, including diameter, wall thickness, bending radius, cross-sectional design, etc.;
b ) Water line characteristics, including yield worry, ultimate stress, elastic modulus, solidity, poor work hardening index chart, anisotropic parameters, etc.
c ) The accuracy on the tube itself, such since the country, uneven wall thickness of the spoon hook degree;
d )the machining process, the manner of machining:
e )bender, condition and size of "bend" and also "core" communicator;
f )cavity slippage condition in the cavity, etc:
g ) the working temperature belonging to the machined portions.
which undoubtedly are a, b), c) the typical material parameters, d), e), f), g) the normal machining conditions.
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201911ld