Pressure and Temperature Modulation in a Hot Isostatic Pressure Chamber.

In medical device manufacturing, hot isostatic pressing (HIP) is a standard additive manufacturing process used to consolidate and remove microporosities of biomedical implants to improve material strength. The ability to monitor and regulate temperature and pressure during a HIP cycle is critical to achieving the desired densification, ensuring implant biocompatibility and structural integrity under load. To optimize and automate the regulation of temperature and pressure during a HIP cycle, a PID-controlled system that injects an initial amount of gas, regulates the rate of temperature-pressure increase through thermal energy, then holds at a specified target is proposed.