Metal stamping and related concepts !

In metal stamping, brute power (hydraulic power mainly) is used to change metal sheets into different shapes. In this process, mainly flat metal sheets are put inside the metal stamping press. The metal stamping press then uses a die surface to bend or cut the material into the desired shape. According to the press tools manufacturers in India, these machines are widely used in small as well as medium scale industries. Many rubber industries in Faridabad also use the hydraulic press tools to cut as well as mould different rubber parts to their desired shapes and sizes.

Metal stamping also knows as pressing is considered as one of the important manufacturing processesin the small-scale industries. According to theHydraulic Power press manufacturer in Faridabad amongst most manufacturing processes, this is considered as low-cost and high-speed. The main task of metal stamping is to create identical metal components which can be uniformly used. The hydraulic press machines are used both for the short as well as long production runs and are generally done with other metal forming processes.

 Generally, the metal forming process includes different techniques such as:

·         Punching.

·         Coining.

·         Blanking.

·         Bending.

·         Embossing

·         Flanging

1). Punching & Blanking: Punching and blanking processes refer to that step where the operator of the hydraulic machine uses the die to cut the metal into required forms. In the punching operations, the die enters the machine which creates a hole in the workpiece. In the blankingprocess, the workpiece is removed from the primary material which makes it the desired workpiece or blank.

2). Embossing: The embossing process is required when the operator needs to create a raised or sunken design in the sheet metal by forcing the raw blank against a die that has the desired shape. It could also mean passing the material blank through a roller die to get the desired design.

3). Coining: Coining, on the other hand, is a bending process wherein the workpiece is stamped while it is put between a die and the press. In this process, the press penetrates inside the metal that creates accurate and repeatable blanks.

4). Bending: In this process, the operator of the hydraulic press bends a metal workpiece into different shapes. Bending creates plastic deformation due to force applied above the yield point, but below the tensile strength.

5). Flanging: In the flanging process flares or flange are introduced into a metal workpiece by using dyes, hydraulic presses, or even specialised flanging machines.

The work of metal stamping machines is not limited to just stamping, but also include casting, punching, cutting, and shaping metal sheets as per the requirements. Nowadays, these machines can be programmed through computer numerically controlled (CNC) to offer high precision and uniform stamped pieces. The electrical discharge machining (EDM) along with computer-aided design (CAD) programs are used in those industries where accuracy is of paramount importance in the stamping process.

When we talk about metal stamping operations, you must realise a few important facts.

1). The production rates can vary in direct relation to the tonnage size of the stamping press. Different stamping presses have different capabilities. Additionally, the production rate of the stamping machine also depends a lot upon the guide lift height as well as feed length.

2). Metal coils have two different sides, wherein the topside of the coil is cosmetic and the hot side is non-cosmetic. When you are doing the stamping operation you must consider how the die will use the top and the bottom of the coil in the stamping press. You must figure out the features that would be visible to the end-user.

3). Every single metal stamping comes with varying degrees of burrs on the edges of the stamped metal sheet.