Cold drawing machine is an essential equipment to reduce the diameter of steel wire rod and metallic mesh. This machine can make it possible for you to reduce the diameter of the metal from its raw state and manufacture all kinds of products, like steel wire and metallic mesh, with different specifications. It will save your time and money and help you produce high-quality products. This machine can be used to draw carbon and low-alloy steel, stainless steel, copper and aluminum and other nonferrous metals.
The cold drawing process is performed by forcing the lead end of the bar or rod into a die which then pulls and stretches the material. This process is usually done multiple times to achieve the desired size and tolerances for the product. This is called multi-pass drawing and the steel is generally annealed between each pass.
To determine the energy-power parameters of the process, it is necessary to perform experimental and mathematical calculations. The experimental data includes the measurements of drawing force and power consumption, as well as the measurement of the change in tensile and yield strength from cold work. Mathematical models are based on the results of tensile tests and include a series of equations. These equations represent the dependences of hardening on cold working for a given alloy. They vary according to the type of alloy that is being drawn.
It is also important to know the effect of technological parameters, such as drawing speed and route on the changes in the strength properties of a material. The accuracy of the calculation depends on the accuracy of these parameters and their proper specification in the design of a drawing machine.
When the metal is drawn, its plastic properties decrease while its strength increases. This is because the drawing process compresses the material to reduce its cross-section. The changes in plastic properties are also influenced by the lubrication that is used for the drawing process.
The optimum conditions for the cold-drawing process are dependent on the type of alloy, and therefore, the selection of suitable lubricants is an essential aspect of the process. It is possible to calculate the energy-power parameters of a drawing machine using computer simulation in well-proven packages such as QForm and ABAQUS . These programs allow for the calculation of the stress and strain required to obtain the desired reduction in diameter of the metal, as well as the amount of force and power needed to draw it. A computer model can also be used to determine the ideal reducing rate of the steel pipe, and this can help the manufacturer to get the best quality and performance from the machine. The model will also help the manufacturers to control the production processes of the cold-drawing machines. This will ensure that the final product meets the standards of quality and performance. It will also be easier to optimize the machine for a particular material and reduce the risk of defects in the finished products.