Auto cold drawing machine is a type of metal working equipment used to shape the end of a rod or bar. The process is called cold because heat is not used to aid in the shaping of the alloy material. This specialized machine can be used for a variety of metals including copper and aluminum, steel, and even some nonferrous alloys. It can also be used to draw a wide range of diameters from the same piece of metal. This machine is a highly efficient alternative to traditional swaging and can produce high quality products with very low error tolerance.
Unlike hot-rolled bar, cold drawn bars have tighter tolerances and higher strength. In addition, it can be used to make a variety of shapes, from round to hexagonal, as well as square and profiled bars. This type of drawing is ideal for producing fasteners, nuts, bolts and other industrial components that require re-sizing and precision.
There are several important features of the auto cold drawing machine that should be considered when selecting a specific model. For example, it should have an emergency stop that can be activated by the operator in a dangerous situation. This feature should be located directly under the operator’s seat so that it can be easily accessed in an emergency. The machine should also have a mechanical brake to prevent the wire from moving when there is no dancer pressure.
Another important feature of a cold drawing machine is the ability to control the amount of wire twist that builds up on the dead block during the drawing process. This twist can have a significant effect on the energy-power parameters of the drawing process, and it is critical that this value be accurate when using mathematical modeling software to predict the results of a new production run.
The type of lubricant used on the drawing machine can also have a significant impact on the performance of the machine. The optimum type of lubricant will depend on the nature of the alloy and the specific conditions in the deformation zone. The correct choice of lubricant can significantly affect the overall performance of the machine and reduce wear of the die and the wire rod.
A common problem encountered on many drawing machines is the loss of lubricant during the drawing process. This can be caused by a combination of factors, including the quality of the lubricant, the amount of deformation, and the condition of the die and wire rod. It is important to use a high-quality lubricant that is compatible with the alloy being processed.
Another important factor that can influence the performance of a drawing machine is its design and layout. In order to achieve maximum efficiency and productivity, the machine must be carefully designed. For example, the drawing machine should be equipped with a large number of feed jaws to accommodate different sizes of wire rod. The feed jaws should also be positioned in the center of the machine to optimize the feeding process. Additionally, the machine should be designed with a trough that can carry away any excess lubricant.