STAMPING MACHINING SERVICE

What’s the Stamping Machining ?

Stamping is the process of placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape.Stamping includes a variety of sheet-metal forming manufacturing processes,such as punching using a machine press or stamping press,blanking, embossing,bending,flange,and coining.This could be a single stage operation where every stroke of the press produces the desired form on the sheet metal part,or could occur through a series of stages.

The process is usually carried out on sheet metal,but can also be used on other materials,such as polyformaldehyde. Process are commonly fed from a coil of steel,coil reel for unwinding of coil to a straightener to level the coil and then into a feeder which advances the material into the press and die at a predetermined feed length.Depending on part complexity,the number of stations in the die can be determined.

Stamping is usually done on cold metal sheet.

Before the material can be formed,stamping professionals must design the tooling via CAD/CAM engineering technology. These designs must be as precise as possible to ensure each punch and bend maintains proper clearance and,therefore,optimal part quality.A single tool 3D model can contain hundreds of parts,so the design process is often quite complex and time-consuming.

Once the tool’s design is established,a manufacturer can use a variety of machining,grinding,wire EDM and other manufacturing services to complete its production.

The Types of the Stamping Machining.

Stamping machining is a manufacturing process that involves the use of dies and presses to shape and cut materials, typically metal, into desired forms. Here are the main types of stamping machining processes:

Blanking: This process cuts out a flat piece of material from a larger sheet, creating a blank that can be further processed or used as a finished part.

Punching: Similar to blanking, punching removes material from a sheet by creating holes or shapes. The waste material is often referred to as "slug."

Bending: This process involves deforming the material along a linear axis to create angles or curves. It is commonly used to create flanges, tabs, or other shapes.

Forming: Forming is a general term that encompasses various methods used to shape metal without removing material, often involving the application of force to create specific contours.

Embossing: This technique creates raised or recessed designs on the surface of a material. It is often used for decorative purposes or to create functional features.

Coining: Coining involves applying pressure to a metal blank in a die to create a detailed design or logo. It is often used for making coins or medallions.

Deep Drawing: This process involves pulling a sheet metal blank into a die cavity to create a deep, hollow shape, such as a cup or casing.

Progressive Stamping: In this method, a series of operations are performed in a single press stroke, moving the material through a series of stations that progressively shape it into the final product.

Blanking and Piercing: This combines blanking and punching in a single operation, where a sheet is simultaneously cut into shapes and holes are punched.

Cutting: This encompasses various techniques used to cut metal sheets into specified shapes, sizes, or patterns.

Notching: This process involves cutting small pieces out of the edge of a material, often used to prepare parts for bending or assembly.

The Types of Stamping Machine:

1.Mechanical Stamping Machines:

These machines use mechanical power, often derived from a flywheel, to drive the ram that performs the stamping operation. They are known for their high speed and efficiency, making them suitable for high-volume production.

2.Hydraulic Stamping Machines:

Hydraulic stamping machines use hydraulic pressure to operate the ram. They provide more control over the stamping process, allowing for variable pressure and speed. They are ideal for forming complex shapes and are often used for deep drawing applications.

3.Pneumatic Stamping Machines:

These machines utilize compressed air to drive the stamping process. They are typically used for lighter stamping applications and can be more flexible in terms of operation speed and adjustments.

4.Servo Stamping Machines:

Servo-driven machines use electric motors to control the ram's movement with precision. They offer enhanced control over the stamping process, including variable stroke lengths and speeds, making them suitable for intricate designs and lower production runs.

5.Progressive Die Stamping Machines:

These machines work with progressive dies, where a single piece of metal moves through multiple stations in a single stroke, allowing for various operations (cutting, bending, forming) to be performed in sequence. This method is efficient for high-volume production.

6.Transfer Stamping Machines:

Transfer stamping machines transport the work piece between different stations within the machine. This allows for multiple operations to be performed on the same piece of material, making them versatile for complex parts.

7.Multi-station Stamping Presses:

These presses are designed to perform multiple operations simultaneously or sequentially on the same work piece, increasing efficiency for complex shapes or designs.

8.Single Station Stamping Presses:

These are simpler machines that perform a single operation at a time. They are typically used for smaller production runs or simpler stamping tasks.

9.Inline Stamping Machines:

Inline machines integrate with other manufacturing processes, such as welding or assembly, allowing for a continuous flow of production.

10.Custom Stamping Machines:

These machines are designed and built to meet specific production requirements or to handle unique materials or processes.

The Stamping Process

The stamping process is a manufacturing method used to shape and cut materials, primarily metals,into desired forms.This process typically involves several key stages and can be used for various applications,from producing simple components to complex assemblies.Here’s an overview of the stamping process:

1. Design and Tooling

Part Design: The process begins with the design of the part to be manufactured. Engineers use CAD software to create detailed specifications, including dimensions and tolerances.

Die Design: A die is created based on the part design. The die consists of two main components: the punch (which cuts or shapes the material) and the die (which holds the material and provides the shape). The tooling is custom-made for each specific part.

2. Material Selection

The choice of material is crucial for the stamping process. Common materials include various grades of steel, aluminum, brass, and other metals. The selected material must have the appropriate thickness, strength, and ductility to withstand the stamping operations.

3. Blanking

The process often begins with blanking, where a flat sheet of material is cut into smaller flat pieces (blanks) that will be further processed. This is done using a blanking die.

4. Stamping Operations

After blanking, various stamping operations are performed on the blanks. These operations may include:

Punching: Creating holes or shapes in the blank.

Bending: Deforming the blank to create angles or curves.

Forming: Shaping the blank into a specific contour.

Deep Drawing: Pulling the blank into a die to create deep, hollow shapes, such as cans or cups.

Embossing: Adding raised or recessed designs to the surface.

5. Progressive and Transfer Stamping

In progressive stamping, the blank is fed through multiple stations in a single stroke of the press, where each station performs a specific operation until the final part is completed.

Transfer stamping involves moving the blank from one station to another,allowing for more complex shapes and multiple operations.

6. Finishing Operations

After stamping, parts may undergo finishing operations such as trimming, deburring, or surface treatment (e.g., coating, painting) to improve their appearance and performance.

7. Quality Control

Quality control measures are implemented throughout the stamping process. This can include inspecting dimensions, checking for defects, and ensuring that the parts meet specified tolerances.

8. Assembly and Packaging

Once the stamping process is complete, parts may be assembled into larger components or systems. Finally, the finished products are packaged for shipment or delivery.

Advantages of the Stamping Process

High Production Rates: Stamping can produce large quantities of parts quickly and efficiently.

Precision and Consistency: The use of dies ensures that parts are produced with high accuracy and uniformity.

Material Efficiency: The process minimizes waste by using materials effectively.

Versatility: Stamping can be used for a wide range of materials and part designs.

Stamping Machining Products Applications

Metal stamping can be applied to a variety of materials based on their unique metalworking qualities for a number of applications across a wide range of industries. Metal stamping may require the forming and processing of base common metals to rare alloys for their application-specific advantages. Some industries require the electrical or thermal conductivity of beryllium copper in areas such as aerospace, electrical, and the defense industry, or the high strength application of steel and its many alloys for the automotive industry.

Such as:Aerospace,Agriculture,Major appliances,Small appliances,Automotive,Commercial,Construction,Electronics,Fire arms,HVAC,Jewellery,Lawn care and equipment,Lighting,Lock hardware,Marine,Medical,Plumbing,Power storage,Power tools,Small engine,etc.