fastener, perno

Perno and Fastener Manufacturing: Vital Importance in Industrial Applications

Perno and fasteners are critical components that form the basic building blocks of industrial production processes. These elements, which are used in many sectors from automotive to construction, from machine production to white goods, play an important role in ensuring the safety and efficiency of structures. In this article manufacture of perno and fasteners processes, the advantages of CNC machining technologies used in production and important trends in the sector.


What is Perno? Basic Role in Fasteners

Pernos are components, usually cylindrical in shape, belonging to the group of fasteners. These elements allow two different surfaces to be brought together and are usually used in conjunction with nuts or washers. The use of Perno is quite common in applications requiring high durability, easy assembly and disassembly.

The main characteristics of Pernos are:

  • Material Durability: It is produced from materials such as steel, stainless steel, titanium.
  • Load Capacity: It has high tensile and compressive strength.
  • Precision Production: It is manufactured with CNC machines with millimetre precision.

fasteners, fasteners

Fastener Manufacturing Processes

The production of fasteners consists of many different stages and each step directly affects the quality of the product. The high-tech equipment used in these processes both shortens production time and increases product quality.

  1. Raw Material Selection: Steel, stainless steel and alloy metals are generally preferred. Raw material quality directly affects the final performance of the product.
  2. Machining CNC machines enable fasteners to be produced in precise dimensions.
  3. Heat Treatment: Hardening and tempering processes are applied to increase the durability of fasteners.
  4. Coating and Surface Treatments: Coating processes such as galvanising and phosphating are performed to increase corrosion resistance.

The Role of CNC Machining in the Fastener Industry

CNC machining is one of the most preferred methods in the production of rivets and fasteners. CNC machines offer high precision and repeatability, ensuring that quality standards are maintained even in large-scale production.

Advantages of CNC machining:

  • Sensitivity: Production can be made with micron level measurements.
  • Efficiency: Provides high speed and quality in mass production.
  • Flexibility: Easily programmable for different designs and dimensions.
bolt fateners
bolt fasteners

Things to Consider in Fastener Manufacturing

Some critical points to be considered in the production of fasteners are as follows:

  • Quality Control: Each product must undergo detailed quality control processes after production.
  • Conformity to Standards: It is important to produce in accordance with international standards such as ISO and DIN.
  • Corrosion Resistance: Coating processes that provide high corrosion resistance should be preferred, especially for elements used outdoors.

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Perno Types and Usage Areas

Pernos have a wide variety among fasteners and are produced in different types according to their usage areas and design needs. Each perno type is designed to fulfil a specific function. Here are commonly used perno types and their properties:


1. Cylindrical Pernos

  • Description: In cylindrical form, it is the type of perno usually used to carry loads or to fix two surfaces.
  • Areas of Use: It is used in the assembly of machine parts, automotive industry and various industrial applications.
  • Features:
    • Provides a precise connection.
    • Easily removable and attachable.

2. Conical Pernos

  • Description: It is a perno type with a conical structure with one end wide and the other end narrow.
  • Areas of Use: It is preferred in connections requiring high precision, especially in shaft-hub connections.
  • Features:
    • Thanks to its self-tightening feature, it provides a more robust connection.
    • Provides additional safety during assembly.

3. Stud Pernos

  • Description: It is a type of perno with both ends toothed and the middle part is usually flat.
  • Areas of Use: Widely used in engine blocks, flanges and heavy machinery assemblies.
  • Features:
    • Connection is provided by attaching nuts to both ends.
    • Suitable for applications requiring strong mechanical connection.

4. Safety Pernos

  • Description: It is a type of perno designed to break when a certain load is exceeded.
  • Areas of Use: It is used to protect the system in case of overload in machines requiring high safety.
  • Features:
    • There is a controlled breaking point.
    • Provides overload protection in machines.

5. Recessed Pernos (Dowel Pins)

  • Description: A type of perno, usually cylindrical, used for aligning and fixing two parts.
  • Areas of Use: Mould industry, machine parts that require precise assembly.
  • Features:
    • It ensures that the parts are joined in the correct position.
    • Often difficult to remove; ideal for permanent connections.

6. Pim Pernolar

  • Description: It is a thin, generally threadless type of perno that allows the fasteners to be held together.
  • Areas of Use: In mechanical systems where light loads are transported.
  • Features:
    • It is an economical solution thanks to its simple structure.
    • It can be produced in various lengths and diameters.

7. Clawed Pernos

  • Description: It is a type of perno with nail-like protrusions on the surface, providing a tight connection.
  • Areas of Use: Designed for use on plastic or soft materials.
  • Features:
    • Prevents slipping by holding tightly to the material.
    • It offers easy assembly.

8. Double-Ended Studs

  • Description: It is a type of perno which is threaded at both ends and fixed with nuts.
  • Areas of Use: Machine assemblies, pipe fittings and automotive industry.
  • Features:
    • Suitable for applications requiring high torque resistance.
    • Creates strong connections.

9. Flanged Pernos

  • Description: It is a type of perno with an enlarged flange at the head, used for fixing and compression.
  • Areas of Use: Automotive sector, pipe connections.
  • Features:
    • Wide flange surface provides wider contact.
    • Offers extra resistance against vibrations.

Conclusion

Perno types vary according to their application and the correct choice of perno is critical to the functionality and safety of the fasteners. Which type of rivet to choose depends on the requirements of the application, carrying capacity and material properties. Especially with CNC machining technologies, these rivet types are produced with high precision and meet industrial demands.


Conclusion

Perno and fastener manufacturing has an important place in industrial production and CNC machining technologies set the quality standards in this field.