Page 8 - Threading

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Introduction
INTRODUCTION A lot of things around us, whether it be everyday objects or industrial products,

have a thread connection. The history of thread connections began many years ago.
The first fastening parts with threads were used in ancient Rome.
However, due to the high cost, they were only used for jewelry, medical instruments
and other expensive products.

Bolts and nuts were widely used in the 15th century. They connected the mobile segments of armor
and parts of watch mechanisms. The first printing machine, invented by Johannes Gutenberg between
1448 and 1450, had threaded connections - its parts were fastened with screws.
At the beginning of the 17th century, a threaded connection appeared similar to the type found today.
Initially, the thread pitch was only in inches until the French introduced the metric thread only at the
beginning of the 19th century.

At the present time, parts with threads are widely used in many different industries.

What is a Thread?
A thread is a surface formed by a helical movement of a flat contour along a helical line. The basis
of threading is the principle of obtaining a helix. There are many different standards, types and ways
of producing threads. In many cases, the thread process occurs in the final stages of manufacturing
the part, thereby occupying a responsible role for obtaining quality parts. The key to high quality and
efficient thread processing is a correct and well-composed technological process.

The assigned thread machining strategy is directly related to the correct selection of the cutting tool.
It is the tool, a small and seemingly minor element in the production of threads that can significantly
increase productivity and quality. ISCAR understands the role of the tool, particularly in threading
and metal processing in general, and aims to provide our customers with a reliable tool that will
meet their requirements.

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