Winterthur, August 2022 – Kistler brings to market the first wireless RCD (rotary cutting dynamometer) with a piezoelectric sensor. It allows for highly accurate measurements of cutting forces in various machining applications. Part of the measurement system is a new platform (software and hardware) which performs automated analyses that help to increase the efficiency of working processes. Test series, for instance, can be analyzed automatically by using a predefined analysis configuration for each channel. The analogue outputs and digital I/O will enable direct communication with machines and robots not only to monitor but also control processes in the future.
RCDs are used by universities, research centers and in tool and machine development but also for production monitoring to measure cutting forces – specifically in milling, drilling, grinding and super-finishing operations. In machining, part quality, tool life and production time depend on different factors: Dynamometers provide data which give valuable insights into wear mechanisms, material characteristics, or any machine or process abnormalities. The knowledge obtained from these measurements helps to improve product quality as well as the cost-effectiveness of cutting processes.
Especially in production monitoring, wireless solutions are often preferred since space in machines is limited and the installation of cables to connect the sensor can be difficult or may not be allowed. The wireless RCD from Kistler is the first of its kind equipped with a piezoelectric sensor and connected via wireless technology to the data acquisition device. It comes with four channel piezo crystals to measure torque as well as forces in all three directions (Fx, Fy and Fz). The low energy wireless technology connection has a range up to five meters to the receiver box depending on the conditions on site.