Sheet Metal Stamping

Hydraulic Press Brakes - Sheet Metal Stamping

Sheet Metal Stamping

Sheet metal stamping is a type of a manufacturing process that stems by combining a couple or more of several other procedures like piercing, drawing, blanking and forming with the use of a stamping press on a sheet metal.

Hydraulic Press Brakes

Stamping could be done to other kinds of materials like polystyrene, but sheet metal has become the most common among all of them. All of the operation mentioned above should be carried out with the use of a special tool that is dedicated for hard tooling. In this case, a high volume part would be created out of a single configuration of one design. It is the complete opposite of soft tooling, which is used in laser profilers, CNC turret presses and press brakes.

There are two kinds of equipment in sheet metal stamping: the hydraulic presses and the mechanical presses.

The hydraulic presses utilize hydraulics to produce force that can be controlled by an operator. They could handle anything from 20 tons to as big as several thousand tons. They are efficient in delivering the expected power and are best used when deep drawing, forming (force type, not displacement type), and blanking with coining or forming.

On the other hand, mechanical presses make use of a mechanical flywheel that could stock up the needed energy in order to deliver the right amount of force when it is time to do some punching on any material. Their size range varies between 20 tons and 6000 tons. Those who would like to do shallow drawing and blanking at a much higher speed should make use of mechanical presses instead of the hydraulic ones.

The precise understanding about this kind of stamping is essential to companies that manufacture things as small as microchips and to those that produce things as large as bodies for different automobile models. They could either have their own machinery and equipment for sheet metal stamping or they could just hire the services of metal stamping companies that could manufacture the needed parts and just deliver the finished product to them.

There are many other important factors to consider when you are into sheet metal stamping. Since sheet metal stamping is a very common manufacturing process used in the industry, it is best that companies are equipped with right kinds of equipment and knowledge for them to perform this operation accurately and precisely.

What is Metal Stamping?

Metal stamping is the process of cutting and shaping metal alloys into specific forms, especially to be used as components for large machinery or structures. Metal sheets can be molded into different pre-determined shapes for use as regular products like pans and cans. The most common alloys that are used in metal stamping are steel, zinc, nickel, aluminum and titanium. Metal stamping is a very cost-effective and productive way of producing many kinds of metal products on a large scale.

In metal stamping, the metal sheets are placed in a die or a press tool that has a specially designed cavity that gives the preferred shape to the metal sheet. The upper part of the die connects to the press slide while the lower component connects to the press bed. A specific component known as the punch pushes the metal sheet through the die, thus performing the actual shaping operation. After pressing, the metal is plated with gold, palladium, nickel or tin to prevent corrosion.

Plating also increases the wearability and solderable nature of the product. Sometimes, the sheet is also pre-plated before the stamping process, and then the product is cleaned to remove excess metal stamping oils and films. The product is then heat treated to make it stronger since it is still in the soft state after stamping. The product is then subjected to the deburring process for removing the sharp corners. This is done by using chemicals or abrasives. Metal stamping also involves other metalworking processes like piercing, blanking, forming and drawing on the same machines.

Stamping presses have specific force, speed and precision for giving a specific shape to the metal. There are two types of metal stamping presses: Mechanical and hydraulic. These are available in an extensive range of capacities, sizes, stroke lengths and operating speeds.

Metal stamping is slowly replacing other metal forming processes like die casting, forging, fabricating and machining. One reason for this is the very low costs involved in metal stamping. The dies used for metal stamping cost less than those used in forging and casting. Also, the metals used in metal stamping can be harder than those used in other processes, thus making the end product stronger. The cost of the secondary processes, like cleaning and plating are also considerably reduced.

Moreover, there are certain products that have to be produced only through metal stamping: Base weights, brackets, balance clamps, brake flanges, conveyer flights, bushing seats, engine bases, flywheel shrouds and friction plates. There are also different kinds of metal stamping including: Deep drawn stamping, electronic stamping, Fourslide stamping, medical stamping, progressive die stamping and short run stamping. The most commonly used type is the progressive die drawing wherein a metal sheet is drawn through a series of dies and stamping is done by all the dies simultaneously, thus considerably reducing the time it takes.

The Cost-Effective Advantage of the Metal Stamping Industry

The materials, equipment, and processes used in the metal stamping industry have proven to be less costly than the original methods of forming metals and alloys into definite shapes. Metal stamping is the method of bending, clipping, and molding sheet metal or coil metal by stamping and pressing the material into the desired forms. The shaped metal is plated with nickel, tin, or some other metallic elements to protect it from corrosion. The most commonly used metals are steel, aluminum, zinc, and nickel. They are low cost, strong, durable, hard to break, portable, and non-toxic.

The precision machining industry in North America has been on the decline due to two factors: the chronic inflation in the price of raw materials and the transportation of same, and a high level of outsourcing to China and India. Outsourcing hasn't struck the metal stamping industry as profoundly thanks to the proximity of the Great Lakes, around which it is concentrated.

The fire-and-brimstone method of forging is harmful to the environment, costly, and hard on the employees. Forming metal this way requires making the steel semi-molten so if the temperature is not estimated correctly (the workers would guess by experience decades ago) when the forge drops there are often rejects that have to be set aside, reheated, reworked, or scrapped altogether, slowing production. In a drop forge, the operators' work environment is a smoking furnace and rhythmic dance of the bars of metal shoot in one side and out the other. Fortunately, there are no ovens or blinding red iron to gaze into when inside a metal stamping factory. Industries that generate large amounts of environmental waste have largely been outsourced to poorer countries.

The major products of the Metal Stamping Industry are things like automotive muffler parts, finer components of larger machinery, equipment and larger metal structures. A common item like a Teflon frying pan would originate from a metal stamping plant, as would oddly-shaped metal containers with edges and rounded bottoms (difficult forms) that you would commonly see in a cafeteria...those deep fryers made of stainless steel have an unusual shape that would be too expensive to make with die-casting. They are deeper than they are wide and known in the industry as deep draws. Deep drawing would be done by metal stamping in a facility that does custom work or can set up for such orders.

There are two branches of the industry, defined by the presses employed by the particular company. The two sections into which the metal stamping Industry is segregated are Mechanical and Hydraulic Metal Stamping. The force produced by hydraulic presses is programmed and are best used for doing the aforementioned deep drawing because they can apply full tonnage over the complete length of the stroke. A hydraulic press is powered by a hydraulic pump to a cylinder or cylinders that drive the slide down. With the pressure preset, a valve can activate pressure reversal so no overload can occur. With this press design and its applications, the die tends to guide the press, so the guiding systems do not have to be as accurate as with a mechanical press that uses a progressive die. A die is a press tool with upper and lower halves that come together under pressure to create the shape of the metal. The upper member is attached to a slide and the lower one is bolted to the "bed" (also called a "bolster").

Mechanical presses use a mechanical flywheel that can stock up the energy needed to deliver the right amount of force for when it's time to punch or pierce the metal. If the production runs call for shallow drawing and blanking at much higher speed, mechanical presses would be used rather than hydraulic presses.

In addition to gap and straight-side presses, the shop would also require press controls and automation, coil handling and feeding equipment, safety equipment, light curtains, ram block, brake monitors, lifts and tilts, conveyors, transfer systems, machinery mounts, press mounts, and rotating cam limit switches. The metal stamping industry is critical to make parts for manufacturers - having the right kinds of equipment and knowledge means high production and cost-effectiveness. All of this equipment means that you can have a muffler on your car and enjoy a drink from a deep-drawn aluminum pop can.

The Cost-Effective benefit of the Metal Stamping manufactures

The materials, equipment, and processes used in the metal stamping manufactures have proven to be less high-priced than the former methods of forming metals and alloys into specific shapes. Metal stamping is the method of bending, clipping, and molding sheet metal or coil metal by stamping and pressing the material into the desired forms. The shaped metal is plated with nickel, tin, or some other metallic elements to safe it from corrosion. The most commonly used metals are steel, aluminum, zinc, and nickel. They are low cost, strong, durable, hard to break, portable, and non-toxic.

The precision machining manufactures in North America has been on the decline due to two factors: the persisting inflation in the price of raw materials and the communication of same, and a high level of outsourcing to China and India. Outsourcing hasn't struck the metal stamping manufactures as profoundly thanks to the nearnessy of the Great Lakes, nearby which it is concentrated.

Hydraulic Press Brakes

The fire-and-brimstone method of forging is harmful to the environment, costly, and hard on the employees. Forming metal this way requires production the steel semi-molten so if the climatic characteristic is not estimated correctly (the workers would guess by palpate decades ago) when the forge drops there are often rejects that have to be set aside, reheated, reworked, or scrapped altogether, slowing production. In a drop forge, the operators' work environment is a smoking furnace and rhythmic dance of the bars of metal shoot in one side and out the other. Fortunately, there are no ovens or blinding red iron to gaze into when inside a metal stamping factory. Industries that create large amounts of environmental waste have largely been outsourced to poorer countries.

The major products of the Metal Stamping manufactures are things like automotive muffler parts, finer components of larger machinery, tool and larger metal structures. A coarse item like a Teflon frying pan would create from a metal stamping plant, as would oddly-shaped metal packaging with edges and rounded bottoms (difficult forms) that you would commonly see in a cafeteria...those deep fryers made of stainless steel have an unusual shape that would be too expensive to make with die-casting. They are deeper than they are wide and known in the manufactures as deep draws. Deep drawing would be done by metal stamping in a factory that does custom work or can set up for such orders.

There are two branches of the industry, defined by the presses employed by the singular company. The two sections into which the metal stamping manufactures is segregated are Mechanical and Hydraulic Metal Stamping. The force produced by hydraulic presses is programmed and are best used for doing the aforementioned deep drawing because they can apply full tonnage over the perfect length of the stroke. A hydraulic press is powered by a hydraulic pump to a cylinder or cylinders that drive the slide down. With the pressure preset, a valve can get underway pressure reversal so no overload can occur. With this press invent and its applications, the die tends to guide the press, so the guiding systems do not have to be as literal, as with a mechanical press that uses a progressive die. A die is a press tool with upper and lower halves that come together under pressure to create the shape of the metal. The upper member is attached to a slide and the lower one is bolted to the "bed" (also called a "bolster").

Mechanical presses use a mechanical flywheel that can stock up the energy needed to deliver the right amount of force for when it's time to punch or pierce the metal. If the yield runs call for shallow drawing and blanking at much higher speed, mechanical presses would be used rather than hydraulic presses.

In addition to gap and straight-side presses, the shop would also want press controls and automation, coil handling and feeding equipment, safety equipment, light curtains, ram block, brake monitors, lifts and tilts, conveyors, exchange systems, machinery mounts, press mounts, and rotating cam limit switches. The metal stamping manufactures is valuable to make parts for manufacturers - having the right kinds of tool and knowledge means high yield and cost-effectiveness. All of this tool means that you can have a muffler on your car and enjoy a drink from a deep-drawn aluminum pop can.

The Cost-Effective benefit of the Metal Stamping manufactures

Hydraulic Press Brakes