Punched parts Manufacturers online

Punched parts are metal parts that are manufactured using the stamping process.

In this process, a workpiece is punched out of a sheet or metal plate using a punching tool and shaped into the desired form. Stamped parts are used in a variety of industries as they are cost-efficient, precise and can be produced in large quantities.

Below you will find an overview of the processes, the most commonly used materials and an overview of the use of punched parts and their advantages.

The processes for manufacturing punched parts:

• Cutting: (punching)
  In classic cutting or punching, workpieces are punched out of a metal strip or sheet. This is done with the help of a punching tool mounted in a press. The presses can be mechanically, hydraulically or pneumatically driven.
  Procedure: A punch presses the material through a die, cutting out the part.
• Fine blanking:
  Fine blanking is a high-precision punching process typically used for applications where very smooth edges and tight tolerances are required.
  Procedure: In addition to the normal punch and die, a counter-pressure mechanism is also used to hold the material in place during the cut. This reduces the formation of burrs.
• Bending:
  In addition to punching, bending is also frequently used as a process to create three-dimensional shapes from flat punched parts.
  Procedure: The material is bent in a special tool to give it the desired shape. These processes are often carried out after punching.
• Deep drawing:
  In deep drawing, a flat sheet is pressed into a deep drawing mold to create deep, hollow shapes.
  Procedure: The sheet metal is drawn over a punch, which is pressed into a mold. Repeated deep drawing allows complex hollow bodies such as housings or cans to be formed.
• Laser cutting:
  Laser cutting is a non-contact cutting process that is often used for prototypes or small series.
  Procedure: A focused laser beam is used to cut the material along a programmed line. This enables high precision without the need to produce special tools.
• Embossing:
  Embossing is a process often used to apply surface textures or patterns to stamped parts.
  Procedure: An embossing tool presses a specific structure into the material.
• Progressive die-cutting:
  Progressive die-cutting combines several work steps such as cutting, bending and embossing in one work cycle.
  Procedure: The sheet passes through a series of stations in which various work steps are carried out one after the other until the finished part is produced.
• Pressure punching:
  Pressure die cutting uses high pressure to shape or separate the material, often for thicker or harder materials.
  Procedure: A punch and die form the material under high pressure, allowing complex and accurate parts to be produced.
• Nibbling:
  Nibbling (also known as nibbling) is a flexible cutting process more commonly used for irregular or complex cuts.
  Procedure: A nibbling machine rapidly moves a small cutting tool up and down, punching out small pieces of material to create a desired shape.

The production of punched parts involves various sophisticated processes, which are selected according to the requirements of the part, the quantity and the material properties. The efficiency, precision and adaptability of each process play a crucial role in selecting the right production process.

Suitable materials:

1. Metals:
Steel, stainless steel, aluminum, copper, brass.

2. Sheet metal:
Thin sheet metal often used to produce flat or shaped components.

3. Plastics:
In some cases, plastics are also die-cut, especially for specific applications such as insulation or packaging.

Use of punched parts :

1. Automotive industry:
Punched parts are used extensively in the manufacture of vehicle bodies, such as door panels, fenders, hoods and tailgates. These parts must fit precisely and retain their shape.
Various parts of the chassis such as springs, brackets and suspensions are stamped.
Punched parts are widely used for vehicle interiors, such as brackets, clips and reinforcements.
Precise punched parts are used in vehicle wiring and for electronic control units to ensure reliable connection and power conduction.

2. Electrical and electronics industry:
Punched parts are widely used in the production of printed circuit boards and electrical contacts. These small metal parts, often made of copper, aluminum or other conductive materials, ensure the connection between different components.
Electrical switches and connectors often consist of punched metal components that offer precise function and durability.
For electronic devices such as computers, smartphones or household appliances, stamped metal housings or frames are often used to ensure protection and stability.

3. Mechanical engineering:
Punched parts are often used in machinery as brackets, connectors or fasteners as they can be manufactured precisely in large quantities.
Many machines and devices require stamped housings, covers or panels that are robust and cost-effective to manufacture.
Precision punched parts such as gaskets and washers are often used in machinery to ensure proper function and sealing.

4. Construction industry:
Punched parts such as nails, staples, screws and metal fittings are used in the construction industry to join components together.
Stampings are also used in load-bearing structures, brackets and fixtures that need to provide high stability and security.
Punched metal panels are often used as roof or façade cladding as they are easy to install and durable.

5. Medical technology:
Precision punched parts are used in the manufacture of surgical tools and medical devices where high precision and sterile conditions are required.
In some cases, stampings are used as part of medical implants or prostheses where material quality and precision are critical.
For medical devices such as heart monitors, infusion pumps or diagnostic equipment, stamped housings are often used and must be robust and safe.

6. Household appliances:
Punched parts are used in many household appliances such as washing machines, refrigerators, microwaves and dishwashers for housings, covers and structural components.
Punched contacts and fasteners are used in the internal electronics of household appliances, providing electrical function and mechanical stability.

7. Furniture industry:
Punched parts such as hinges, handle fittings, drawer pulls and fasteners are used in furniture manufacturing to connect furniture parts in a functional and stable way.
Metallic decorative elements produced by stamping processes are used in furniture or interior fittings to fulfill aesthetic and practical functions.

8. Aerospace:
Punched light metal parts are used in aircraft to minimize weight while maintaining structural integrity.
As in the automotive and electronics industries, stamped components are also used in the aerospace industry for electronic circuits and connections.
In airplanes, punched parts are used to ensure thermal and electrical insulation and to shield components from external influences.

9. Packaging industry:
Metal cans and containers used for food, beverages and other products are created by punching and forming processes.
Closures for jars, bottles and other containers are often manufactured as punched parts and play an important role in the packaging industry.
Punched metal clips or straps are used in packaging technology to secure packaging.

10. Jewelry and fashion accessories:
In the jewelry industry, many components such as clasps, chains and decorative elements are produced by punching, as this enables high precision and reproducibility.
Punched metal parts are used as decorative or design elements in fashion accessories such as bags, belts or shoes.

11. Agriculture and agricultural technology:
Punched parts are used in agricultural machinery such as tractors, combine harvesters or plows, for example in the form of fastenings, covers or structural components.
Punched parts are used for hand tools and accessories that are used in agriculture and horticulture.

Advantages of punched parts:

• The punching process enables the production of parts with tight tolerances, which is important for the functionality and accuracy of fit of the components.
• For high-volume production, punching is an extremely cost-effective method as it can be carried out quickly and in large quantities.
• Punched parts can be made from various materials such as steel, aluminum, copper, brass or stainless steels.
• The efficient use of materials means that punching produces little waste, making it an environmentally friendly method.

Punched parts are present in almost every industry as they can be produced in a variety of shapes and sizes and are economical, precise and durable. From the automotive industry to electronics and medical technology, punched parts offer a reliable solution for demanding applications where dimensional accuracy and production volume are critical.

Below is an overview of the most important points to consider when purchasing punched parts:

When purchasing punched parts, there are several important criteria that must be considered to ensure that the parts meet the requirements of the application and are delivered in the desired quality.

• Choose the right material for the application. Punched parts can be made from various materials, such as steel, stainless steel, aluminum, copper, brass or special alloys. The material should be selected according to the requirements in terms of strength, conductivity, corrosion resistance and formability.
• Make sure that the material has the required properties such as hardness, tensile strength and elasticity for your application.
• For applications in humid or corrosive environments, such as the construction or automotive industries, the corrosion resistance of the material is crucial.
• Punched parts often need to meet tight tolerances, especially when used in precision applications such as electronics or automotive. It is important to discuss the necessary tolerances and dimensional accuracy with the supplier.
• The desired surface finish should be clarified in advance. Sometimes a smooth or polished surface is necessary to reduce friction or improve the aesthetic effect.
• Certain applications may require additional surface treatment, such as powder coating, galvanizing, anodizing or painting, to provide corrosion protection or an attractive appearance.
• For applications that are exposed to extreme temperatures, moisture or chemical influences, the material and surface treatment must be particularly resistant.
• The correct punching process must be selected for the desired application, e.g. fine blanking, precision stamping or deep drawing. Fine blanking, for example, is used for complex and high-precision parts, while deep drawing is suitable for parts with complex three-dimensional shapes.
• Choose the supplier that has the capacity to deliver your required batch size. Some suppliers specialize in small batches, while others are designed for mass production.
• Since special tools and molds are usually required for stamped parts, the tool costs and development times should be included in the calculation. In some cases, it may be useful to clarify tool ownership (whether the tool remains the property of the customer or the supplier).
• The life of the die is critical to long-term cost planning. High quality tools last longer and offer consistent quality, which is particularly important for high volumes.
• Punched parts may have burrs or sharp edges that need to be removed. Clarify with the supplier whether post-processing such as deburring or smoothing is necessary and whether they can carry out these steps themselves.
• In some cases, heat treatment may be necessary to improve the mechanical properties of the material, e.g. hardness or toughness.
• Make sure that the supplier has implemented a certified quality management system such as ISO 9001. For safety-critical applications, such as in the automotive or aviation industry, special certifications such as IATF 16949 or AS9100 are also important.
• Ask for material certificates and test reports to ensure that the material meets the specifications and has passed the required tests, such as tensile strength tests or surface inspections.
• Choose the supplier that has the capacity to supply your required batch size. Some suppliers specialize in small batches, while others are designed for mass production.
• Choose a supplier that has experience in manufacturing punched parts for your specific industry. An experienced supplier can offer valuable advice on material selection and manufacturing technology.
• Make sure that the supplier has the necessary capacity and machinery to produce the required quantities within the time frame and with the desired quality.
• A flexible supplier is able to respond quickly to changes in design or production requirements.
• Material costs often make up a large part of the total cost. Consider whether alternative materials or production processes are more cost effective without compromising quality.
• Many suppliers offer discounts for higher quantities. If you need large quantities or are planning long-term supply agreements, such volume discounts can offer significant cost savings.
• In addition to the pure manufacturing costs, tooling costs and set-up times must also be taken into account. These costs per part can be higher for small quantities.
• Clarify the expected delivery times, especially if tools have to be newly developed or adapted. Plan buffer times to avoid production delays.
• Punched parts often need to be securely packaged and transported to avoid damage during transportation. Clarify the type of packaging and transportation costs with the supplier.
• If the punched parts are used in safety-critical areas (e.g. in the automotive industry, medical technology or aviation), particularly strict quality tests and certifications are required. These parts often have to meet additional regulatory requirements.
• Make sure that the supplier works in a material-efficient manner to minimize waste. This can not only cut costs, but also reduce the environmental footprint.
• Check whether the supplier uses sustainable processes and whether the materials used are recyclable. A responsible supplier often meets environmental standards such as ISO 14001.

When purchasing punched parts, material selection, precision, quality standards and supplier reliability play a central role. It is important to clarify all technical requirements at an early stage to ensure that the punched parts meet the specific requirements and are delivered in the desired quality. Working closely with an experienced and certified supplier helps to find cost-effective and high-quality solutions.

Punched parts can be purchased from various suppliers. Comprehensive information about manufacturers and suppliers of Punched parts from all over the world can be found on Exportpages.