Protect processes, collect data: Turning Performance

To predict, detect and react to problems with machining processes within milliseconds, Sandvik Coromant Co., Fair Lawn, New Jersey, developed CoroPlus ProcessControl. At the same time, the monitoring system can collect data to correct and improve inefficiencies in a process.

“The main functionality is it automates data collection and analysis,” said Jeff Rizzie, director of digital machining. “It gathers the data directly from the machine tool and basically makes a decision on whether your machining process is stable or needs to be adjusted.”

A collision detection function determines when a machine has a collision and then quickly shuts down the machine. The function is not application-dependent. If a crash occurs, traditionally a machinist hits the stop button. But by the time that is performed manually, the damage is done, he said.

The CoroPlus ProcessControl process monitoring system is designed to increase machining security, such as on this universal turning center. Image courtesy of Sandvik Coromant

A tool guard function works similarly but in more finite terms. Rizzie said it looks for broken or missing tools and detects tool force overload to decide when a worn tool needs replacement. The function uses a combination of machine data, such as power and drive data, and data from a vibration sensor mounted on a spindle nose or turret.

“What we’re looking for are patterns or anomalies,” he said. “Like any kind of data analytics, we’re looking for those patterns that will tell us if everything is running properly or if there is a possible tool breakage situation.”

Data logging records profiles of tool behavior during machining, said Niels Bredick, senior solutions specialist of process control. Analyzing tools can extend their lifetimes. Using individualized sensor profiles and comparing them helps to better understand a problem with a process. Data can be used to replace a tool before something bad occurs, potentially saving thousands of dollars.