Cold Drawing Process- Benefits, Uses, And Techniques

 Cold Drawing process is a manufacturing technique used on steel and iron where a metal is pulled through or drawn into a desired shape and size. The drawing process is done at room temperature and hence the name. It does not require preheating of the metal before the procedure. And while the process gives the metal various mechanical properties such as tensile strength with high tolerance, it is also used to produce variously shaped steel products to match different requirements. Cold drawn bright bars, profile bright bars, square bright bars.

 

Benefits Of Cold Drawing

Like any other process that steel and iron are made to pass through, Cold Drawing is used to induce beneficial mechanical properties to the metal. Manufacturers like Matta Drawing uses the cold drawing process to meet specific custom client requirements such as the following:

 

• Increased tolerance

• Improved quality

• Surface finish

• Polished steel with luster

• Yield strength

• Tensile strength

• Improved machinability

• Hardness

• Longer life

• High precision in size

 

Usage Of Cold Drawn Steel

Cold drawn bright bars, due to its unique properties, are ideal for many industries, especially where precision and luster are required. 

 

• Cold drawn steel is ideal for making fastening parts such as nuts and bolts and pins and rivets.

• The steel is due to its high tensile strength also serves as an excellent raw material for developing tools.

• Cold drawn steel is popularly used by the engineering and construction industries as well.

• Profile bright bars and square bright bars are used in the rail industry for making rails, I beams, trellis, coaches, etc.

• The automobile industry uses the cold drawn steel for making frames and chassis.

 

Cold Drawing Techniques

The cold drawing process, although it results in inducing the same properties are classified into two types. One is sheet metal drawing, and the second is the shaped metal drawing that includes wire, bar, and tube drawing.

 

The process starts with lubricating the metal and then stretching the ends to a smaller size to match with the smaller opening of the dye before drawing the metal. The steel is then made to pass through the dye that results in reduced breadth and longer height. Depending on the requirement, Matta Drawing passes the metal multiple times through the dye and uses thermal treatment annealing to meet the standard and get the resultant polished bright bars.