Blog Information

• Posted By : Jonas Huggins
• Posted On : Feb 18, 2022
• Views : 137
• Category : Travel
• Description : Metal tube and hollow bar are used in a wide range of structural applications, including bridges and buildings

Overview

• Metal tube and hollow bar are used in a wide range of structural applications, including bridges and buildings. The cost advantage over solid metal bar stock is offset by the fact that they weigh less than a solid bar of the same material and size, while still providing substantial strength. Despite the fact that tube and hollow bar can look similar in shape, we will examine the differences between tube and hollow bar in more detail.
  
  

  Materials of High Quality in the Manufacturing Process

  
  The process by which welded tubing and hollow bar are manufactured is a significant difference. Tube is formed by passing slit coils of a base metal through a tube mill, which is a series of dies that shape the slit coil into a tube shape, which can be round, square, or rectangular in shape, depending on the application. The edges of the sheet metal are joined together with a weld after it has been formed into the desired shape. The welding process can differ depending on the type of material used, the thickness of the material used, and the preferences of the manufacturing team. High frequency welding or electric resistance welding are two of the most common types of welding. On the outside, the excess weld metal is removed and disposed of. An annealing process is frequently used after the extruded aluminium tubing has been joined together to ensure that the final product is homogeneous in appearance.
  
  Welding is not required when working with hollow bar. Creating hollow bar can be accomplished in one of two ways, with the process varying depending on the material and dimensional tolerance requirements. Drilling is a technique for creating hollow bar that can be used. This procedure entails drilling a hole through a solid bar stock of material with a drill bit. It is possible to obtain extremely accurate part dimensions for critical applications using this process. Centrifugal casting is the second method of casting. When molten metal is poured into a round mold, it is rotated at high speeds while the mold is being rotated. In order to cool and harden properly, the molten material is forced to adhere to the inside of the mold wall by the force created by the spinning mold. Centrifugal casted hollow bar has a tendency to be dense and uniform in appearance. Stainless steel and bronze are the only two metals that can be used to make hollow bar, and both are corrosion resistant.
  
  High-Quality
  
  Hollow bar can be manufactured to be extremely homogeneous, and it can also be manufactured to have extremely close dimensional tolerances. It can be more difficult to achieve precise dimensional tolerances when working with tube, on the other hand. Additionally, if the manufacturer does not exercise caution, the welding process used to manufacture tube may result in a product of lower quality than that desired by the customer. It is necessary to remove any excess weld metal in order to avoid the formation of stress concentrators in the welded extruded aluminium pipe. It is also necessary to anneal or heat treat the tube after it has been welded in order to ensure that a homogeneous product is produced. Processes such as welding can result in different crystalline structures near the weld zone, which can have an impact on the mechanical properties of the extruded aluminium tubing that are desired.
  
  Materials Welded extruded aluminium pipe can be made out of a wide variety of materials, including steel and aluminum.
  
  If the material has the ability to conduct electricity, electric resistance welding can be used to weld the material to itself in order to form tubing from the material.
  
  Hollow bar can be made from a variety of materials as well as metals. The piercing method, on the other hand, could be used in the case of harder and stronger materials that are too difficult to extrude.
  
  In the end, the decision between using tube or hollow bar will come down to the specific application, as one is not necessarily better or less expensive than the other in every situation. Prior to making a decision between the two options, several design considerations should be taken into account depending on the material type and tolerances.
  
  Pipes are typically used to transport liquids or gases, and they are built to withstand high pressure when necessary. Pipes are always in the shape of a circle.
  
  Tubes are used for strength in a variety of applications, the majority of which are structural in nature. Tubes are available in three different shapes: round, square, and rectangle. Pipes are measured by their nominal (or inner) diameter and the thickness of their walls. The thickness of the wall is referred to as a schedule. Schedule 40 or schedule 80 are the most frequently used. According to the nominal diameter, a schedule has a fixed number of entries. For example, a nominal pipe with a diameter of 0.75 inch and a schedule number of 40 will always have a thickness of 0.113 inch. tubes are measured in terms of their outer diameter, as well as their wall thickness, which is typically expressed in inches or fractions of an inch. A hollow bar is always round and can take on the appearance of a pipe or a tube; however, the walls of a hollow bar are typically much thicker.