Introduction

Pre-stressing of tools used for precision forging processes is one of the major application fields for the STRECON^® stripwound containers. The container technology is used for cold, warm, and hot forging. 

We are especially strong within the automotive industry but does also design and build tooling solutions for other industries like aircraft, pumps, bicycles, etc.

The increasing demand of complex parts with close tolerances calls for tooling solutions that can handle the increased level of critical stresses in the dies. Because of the high-strength materials and the stripwinding technique, a much better support of the die insert can be obtained compared to what is possible in a conventional stress ring system. Generally speaking, a forging die pre-stressed by a STRECON container can withstand a tool load that at minimum is 50% higher than what would be possible in a normal stress ring. No other tool systems can offer this strength.

In addition to the unique loadability feature, the STRECON stripwound container concept also offers other advantages, such as increased stiffness (i.e. Young’s Modulus), combined radial and axial pre-stressing/positioning, variable adjustment of the internal diameter of the die insert, and dynamic press fitting of the die. Additional information about the individual products can be found in this section of our website.

The technical features would usually prove themselves as improved service life of die inserts, forging of parts with very close tolerances, and a tool system that ensures the specified level of pre-stressing (i.e. no local expansion of the ring). In economic terms, this means lower tooling costs per produced part and an enhanced productivity.