Helicoil

What is a Helicoil?

A Helicoil is a thread insert that allows for the repair of worn or damaged threads and reinforces threads in weaker materials like aluminum or magnesium alloys. It consists of a precisely formed stainless steel wire that creates a strong and durable internal thread.

Using Helicoil in the Machining Industry

In the machining industry, Helicoil is an essential tool, especially when reliable and durable threads are needed in lightweight metal alloys. It enables machinists to repair damaged threads efficiently, reducing downtime and improving production processes.

Benefits of Helicoil in Machine Shops

The use of Helicoil in machine shops offers several advantages:

  • Durability: The insert, made from stainless steel, resists corrosion and heat, extending the life of the threads.
  • Versatility: Suitable for use with various materials and applications, including engine blocks and gearboxes.
  • Ease of Use: Helicoil thread repair kits include the necessary tools—such as a drill bit, tap, and installation tool—which make installation straightforward and minimize the potential for errors.

Helicoil Installation Process

The Helicoil installation process consists of the following steps:

  • Preparing the Bore: The damaged thread is drilled out using the correct size drill bit.
  • Tapping: A new thread is machined into the drilled hole with a special tap.
  • Insert Installation: The Helicoil insert is threaded into place with the installation tool, creating a new, durable thread.
  • Removal of Installation Tang: After installation, the tang on the insert is broken off to create a pass-through thread.

Summary

Helicoil is an essential component in the machining industry, providing a reliable solution for repairing and reinforcing threads. Its use improves the durability and reliability of threads, which is especially important for machinists and machine shops working with various metals and applications.