In the past, the proper induction heating of forging billets presented challenges to the forger that could only be resolved through trial and error. Now, by using advanced computer simulations to model the heating and forging processes, hot-forging designers have powerful tools to reduce the guesswork and unit costs.

In-line induction heating has become a popular method of heating billets in forging applications. There are many parameters to be considered in designing an induction heating system to meet the needs of modern forge shops. Application experience and computer modeling are important tools in developing effective induction billet-heating systems and avoiding unpleasant surprises related to common misconceptions.

In the first four articles in this series, the operation and use of four types of forging equipment – hammers, mechanical presses, hydraulic presses and screw presses – were reviewed. In this fifth and final article, a general comparison of these four types of forging equipment is made. Each type of equipment can perform well or poorly depending on conditions and circumstances. It is hoped that the comparisons made in this article will help readers select the right type of equipment for the specific job.