Antti Aronen | How to change the tempering process control from settings to specifications

Session: Tempering / Pre-Processing
Event: GPD Finland 2023
How to change the tempering process control from settings to specifications
The glass tempering is the process which can be made in many ways to get tempered glass which meets the standards. Selected way is usually chosen individually by an operator and almost always based on the experience instead of science. Complexity of operation increases especially in environments where more than one operator is operating the line, which can lead to making process decision based on different logic in different shifts.
To tackle this challenge, a centralized process model has been developed that controls the whole tempering process. It helps to increase repeatability of the tempering process. This automation-based process model provides a stable platform to develop the tempering process considering multiple aspects in the future.
As an example, the tempering process is driven by regional and factory standards, factory targets and end-user demand. Process target can be for example high production rate, high yield, low anisotropy, or low deformations. It is difficult to achieve all these targets at the same time, usually at least one factor needs to be sacrificed to achieve the others.
What if the process is for example controlled by telling the machine what is the target of product?
With good understanding of the process and increased number of measurements in the process the automation level can be increased. Increased automation level helps to adjust tempering parameters depending on the internal and external variables. With all automated information tempering machine would recommend the loading pattern and set process parameters to meet the desired specification of product.
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GPD Finland 2023: gpd.fi/events/...