Definitions

Wrong or not optimally adjusted dies for thread rolling are one of the main causes of poor thread quality and rapid tool wear! Only experienced machine setters achieve perfect results when setting the tools. Die match errors arise when the two thread rolling dies are not correctly adjusted to each other. Only with precisely adjusted rolling dies, the thread profiles rolled by the two halves of the die set run cleanly into one another. If the tool setting is bad, the thread profile formed by one rolling die is displaced slightly laterally from the other die. These alignment errors (thread laps) weaken the thread and are therefore not allowed. In addition, the lateral load on the thread profile of the dies increases and can reduce the lifetime drastically.

In a monitoring system with automatic die match indicators (DMI), sensors and a tailored software make immediately visible whether the position of the two dies is correct, or whether an adjustment is required. The measurement takes place at full production speed and thus maps the real conditions of production. Often only minimal fine corrections of the die match position are necessary to achieve maximum operating life, which can hardly be achieved with dexterity.

We have field-tested solutions for all common and suitable rolling machines from various manufacturers.